/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1");

/**** 
* Classes
****/ 
var BotSelectionScreen = Container.expand(function () {
	var self = Container.call(this);
	// Bot descriptions and icons
	var botData = {
		Martin: {
			description: 'Martin makes many bad moves.',
			icon: 'martinIcon'
		},
		Lina: {
			description: 'Lina has an offensive strategy.',
			icon: 'linaIcon'
		},
		Carl: {
			description: 'Carl tries to stall the game.',
			icon: 'carlIcon'
		},
		Wizard: {
			description: 'Wizard uses magic for great moves.',
			icon: 'wizardIcon'
		},
		King: {
			description: 'King plays optimally but lacks a Queen.',
			icon: 'kingIcon'
		}
	};
	var bots = ['Martin', 'Lina', 'Carl', 'Wizard', 'King'];
	// Assume these assets ('martinIcon', 'linaIcon', etc.) are defined or will be auto-created by the engine.
	// Example sizes used here are 80x80.
	var startY = -350; // Adjusted start Y for more spacing overall
	var spacingY = 180; // Increased vertical spacing between buttons
	// Create title text
	var titleText = new Text2('Select Your Opponent', {
		size: 80,
		fill: 0xFFFFFF
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.y = startY - 100; // Position title above the first button container
	self.addChild(titleText);
	// Store button containers and backgrounds for interaction setup
	var buttonContainers = [];
	var buttonBackgrounds = [];
	// Create bot buttons with icons and descriptions using Containers
	for (var i = 0; i < bots.length; i++) {
		var botName = bots[i];
		var currentBotData = botData[botName];
		// Create a container for each button entry
		var buttonContainer = new Container();
		buttonContainer.x = 0; // Center container horizontally relative to parent (BotSelectionScreen)
		buttonContainer.y = startY + i * spacingY; // Position container vertically
		self.addChild(buttonContainer);
		buttonContainers.push(buttonContainer); // Store the container
		// Get icon asset
		var icon = LK.getAsset(currentBotData.icon, {
			anchorX: 0.5,
			anchorY: 0.5,
			width: 80,
			height: 80
		});
		icon.x = -200; // Position icon significantly to the left within the container
		icon.y = 0; // Center icon vertically within the container
		// Get bot name text asset
		var botButtonText = new Text2(botName.toUpperCase(), {
			size: 60,
			fill: 0xFFFFFF
		});
		botButtonText.anchor.set(0, 0.5); // Anchor text to its left-middle
		botButtonText.x = icon.x + icon.width / 2 + 20; // Position text right of the icon center + padding
		botButtonText.y = -15; // Position text slightly above the vertical center
		// Get description text asset
		var descriptionText = new Text2(currentBotData.description, {
			size: 30,
			fill: 0xCCCCCC
		});
		descriptionText.anchor.set(0, 0.5); // Anchor text to its left-middle
		descriptionText.x = botButtonText.x; // Align description start with bot name start
		descriptionText.y = 15; // Position description below the vertical center
		// Calculate dynamic width/height needed for the background based on content
		var textBlockWidth = Math.max(botButtonText.width, descriptionText.width);
		var contentWidth = icon.width + 20 + textBlockWidth; // Icon width + padding + max text width
		var contentHeight = Math.max(icon.height, botButtonText.height + descriptionText.height + 10); // Max of icon height or combined text height + spacing
		var bgWidth = contentWidth + 80; // Add horizontal padding to content width
		var bgHeight = contentHeight + 40; // Add vertical padding to content height
		// Create background asset
		var bg = LK.getAsset('blackSquare', {
			anchorX: 0.5,
			anchorY: 0.5,
			width: bgWidth,
			height: bgHeight,
			tint: 0x3a3a3a
		});
		bg.alpha = 0.7;
		// Center the background horizontally around the content block
		bg.x = icon.x - icon.width / 2 + contentWidth / 2;
		bg.y = 0; // Center background vertically in the container
		buttonContainer.addChild(bg); // Add background first so text/icon are on top
		buttonBackgrounds.push(bg); // Store background reference for interaction effects
		// Add icon and text elements on top of the background
		buttonContainer.addChild(icon);
		buttonContainer.addChild(botButtonText);
		buttonContainer.addChild(descriptionText);
		// Make the entire container interactive
		buttonContainer.interactive = true;
		buttonContainer.botIndex = i; // Store the bot index on the container for the click handler
	}
	// Create Back button text
	var backButton = new Text2('< BACK', {
		size: 60,
		fill: 0xFFFFFF
	});
	backButton.anchor.set(0.5, 0.5);
	// Position back button below the last bot container, accounting for increased spacing
	backButton.y = startY + bots.length * spacingY + 60;
	self.addChild(backButton);
	// Create Back button background
	var backBg = LK.getAsset('blackSquare', {
		anchorX: 0.5,
		anchorY: 0.5,
		width: backButton.width + 80,
		height: backButton.height + 40,
		tint: 0x3a3a3a
	});
	backBg.alpha = 0.7;
	backBg.x = backButton.x; // Align background center with text center
	backBg.y = backButton.y; // Align background center with text center
	self.addChild(backBg); // Add background first
	self.addChild(backButton); // Add text on top of background
	// --- Interaction Setup ---
	// Bot button interactions (using stored containers and backgrounds)
	for (var i = 0; i < buttonContainers.length; i++) {
		(function (index) {
			var btnContainer = buttonContainers[index];
			var bg = buttonBackgrounds[index]; // Get the corresponding background
			// Attach down event to the container
			btnContainer.down = function (x, y, obj) {
				// Flash the background alpha on click
				tween(bg, {
					alpha: 1
				}, {
					duration: 100,
					onFinish: function onComplete() {
						// Return alpha to normal after flash
						tween(bg, {
							alpha: 0.7
						}, {
							duration: 100
						});
					}
				});
				// Handle button action: select bot and start game
				game.selectedBot = bots[index]; // Use stored index to get bot name
				game.startGame();
			};
		})(i);
	}
	// Back button interaction
	(function () {
		var btn = backButton; // Reference to the Text2 object
		var bg = backBg; // Reference to the background shape
		btn.interactive = true; // Make the Text2 object interactive
		// Attach down event to the text object
		btn.down = function (x, y, obj) {
			// Flash the background alpha on click
			tween(bg, {
				alpha: 1
			}, {
				duration: 100,
				onFinish: function onComplete() {
					// Return alpha to normal after flash
					tween(bg, {
						alpha: 0.7
					}, {
						duration: 100
					});
				}
			});
			// Handle back button action: show the previous screen
			game.showGameModeScreen();
		};
	})();
	// Update function (can be used for animations later if needed)
	self.update = function () {
		// Optional: Add animations like pulsing if needed
	};
	return self;
});
var ChessPiece = Container.expand(function (type, color) {
	var self = Container.call(this);
	self.type = type;
	self.color = color;
	self.hasMoved = false;
	var pieceId = color + type.charAt(0).toUpperCase() + type.slice(1);
	var pieceGraphics = self.attachAsset(pieceId, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var label;
	switch (type) {
		case 'pawn':
			label = '';
			break;
		case 'rook':
			label = 'R';
			break;
		case 'knight':
			label = 'N';
			break;
		case 'bishop':
			label = 'B';
			break;
		case 'queen':
			label = 'Q';
			break;
		case 'king':
			label = 'K';
			break;
	}
	if (label) {
		var text = new Text2(label, {
			size: 40,
			fill: color === 'white' ? "#000000" : "#ffffff"
		});
		text.anchor.set(0.5, 0.5);
		self.addChild(text);
	}
	return self;
});
var ChessSquare = Container.expand(function (row, col, color) {
	var self = Container.call(this);
	self.row = row;
	self.col = col;
	self.color = color;
	self.piece = null;
	var squareGraphics = self.attachAsset(color === 'white' ? 'whiteSquare' : 'blackSquare', {
		anchorX: 0,
		anchorY: 0
	});
	self.highlight = function (type) {
		if (type === 'selected') {
			squareGraphics.tint = 0x829769;
		} else if (type === 'validMove') {
			squareGraphics.tint = 0xcdd26a;
		} else {
			// Reset to original color
			squareGraphics.tint = color === 'white' ? 0xf0d9b5 : 0xb58863;
		}
	};
	self.setPiece = function (piece) {
		if (self.piece) {
			self.removeChild(self.piece);
		}
		self.piece = piece;
		if (piece) {
			self.addChild(piece);
			piece.x = squareGraphics.width / 2;
			piece.y = squareGraphics.height / 2;
		}
	};
	self.down = function (x, y, obj) {
		game.selectSquare(self);
	};
	return self;
});
var CrazyAbility = Container.expand(function () {
	var self = Container.call(this);
	// Available abilities
	self.abilities = [{
		name: 'Freeze',
		description: 'Freezes a white piece for 2 turns'
	}, {
		name: 'Instant Promotion',
		description: 'Promotes a black pawn to a powerful piece'
	}, {
		name: 'Stampede',
		description: 'Removes 3 random pieces from the board'
	}, {
		name: 'Summon',
		description: 'Summons a black rook on an empty square'
	}, {
		name: 'Teleport',
		description: 'Teleports one of your pieces to danger!'
	}, {
		name: 'Goatify',
		description: 'Turns a piece into a goat that moves like a king for 2 turns'
	}, {
		name: 'Trap',
		description: 'Places a bear trap that captures pieces that land on it'
	}];
	// Stores pieces that are frozen
	self.frozenPieces = [];
	// Use a random ability
	self.useRandomAbility = function () {
		var randomIndex = Math.floor(Math.random() * self.abilities.length);
		var ability = self.abilities[randomIndex];
		// Show ability notification
		self.showAbilityNotification(ability.name);
		// Execute ability
		switch (ability.name) {
			case 'Freeze':
				self.freezeRandomPiece();
				break;
			case 'Instant Promotion':
				self.instantPromotion();
				break;
			case 'Stampede':
				self.stampede();
				break;
			case 'Summon':
				self.summonRook();
				break;
			case 'Teleport':
				self.teleport();
				break;
			case 'Goatify':
				self.goatifyPiece();
				break;
			case 'Trap':
				self.placeTrap();
				break;
		}
	};
	// Show notification of ability used
	self.showAbilityNotification = function (abilityName) {
		var notification = new Text2('AI USED: ' + abilityName + '!', {
			size: 50,
			fill: 0xFF0000
		});
		notification.anchor.set(0.5, 0.5);
		notification.x = 2048 / 2;
		notification.y = 2732 / 2 - 300;
		game.addChild(notification);
		// Flash effect
		LK.effects.flashObject(notification, 0xFF0000, 500);
		// Remove after delay
		LK.setTimeout(function () {
			game.removeChild(notification);
		}, 2000);
	};
	// Freeze a random white piece for 2 turns
	self.freezeRandomPiece = function () {
		var whitePieces = [];
		// Find all white pieces
		for (var row = 0; row < BOARD_SIZE; row++) {
			for (var col = 0; col < BOARD_SIZE; col++) {
				var square = board[row][col];
				if (square.piece && square.piece.color === 'white') {
					whitePieces.push({
						square: square,
						row: row,
						col: col
					});
				}
			}
		}
		if (whitePieces.length > 0) {
			// Select random white piece
			var randomIndex = Math.floor(Math.random() * whitePieces.length);
			var targetPiece = whitePieces[randomIndex];
			// Add to frozen list with 2 turns duration
			self.frozenPieces.push({
				row: targetPiece.row,
				col: targetPiece.col,
				turnsLeft: 2
			});
			// Visual effect - tint blue
			targetPiece.square.piece.tint = 0x00AAFF;
		}
	};
	// Turn a random black pawn into a queen, bishop or rook
	self.instantPromotion = function () {
		var blackPawns = [];
		// Find all black pawns
		for (var row = 0; row < BOARD_SIZE; row++) {
			for (var col = 0; col < BOARD_SIZE; col++) {
				var square = board[row][col];
				if (square.piece && square.piece.color === 'black' && square.piece.type === 'pawn') {
					blackPawns.push({
						square: square
					});
				}
			}
		}
		if (blackPawns.length > 0) {
			// Select random black pawn
			var randomIndex = Math.floor(Math.random() * blackPawns.length);
			var targetPawn = blackPawns[randomIndex];
			// Choose random promotion type
			var promotionTypes = ['queen', 'bishop', 'rook'];
			var randomType = promotionTypes[Math.floor(Math.random() * promotionTypes.length)];
			// Promote the pawn
			targetPawn.square.setPiece(new ChessPiece(randomType, 'black'));
			LK.getSound('promotion').play();
		}
	};
	// Remove 3 random pieces from the board
	self.stampede = function () {
		var allPieces = [];
		// Find all pieces, excluding all kings
		for (var row = 0; row < BOARD_SIZE; row++) {
			for (var col = 0; col < BOARD_SIZE; col++) {
				var square = board[row][col];
				if (square.piece && square.piece.type !== 'king') {
					allPieces.push({
						square: square
					});
				}
			}
		}
		// Remove up to 3 random pieces
		var removeCount = Math.min(3, allPieces.length);
		for (var i = 0; i < removeCount; i++) {
			if (allPieces.length > 0) {
				var randomIndex = Math.floor(Math.random() * allPieces.length);
				var targetPiece = allPieces[randomIndex];
				// Remove piece
				targetPiece.square.setPiece(null);
				// Remove from array
				allPieces.splice(randomIndex, 1);
			}
		}
		LK.getSound('capture').play();
	};
	// Summon a black rook on a random empty square
	self.summonRook = function () {
		var emptySquares = [];
		// Find all empty squares
		for (var row = 0; row < BOARD_SIZE; row++) {
			for (var col = 0; col < BOARD_SIZE; col++) {
				var square = board[row][col];
				if (!square.piece) {
					emptySquares.push({
						square: square
					});
				}
			}
		}
		if (emptySquares.length > 0) {
			// Select random empty square
			var randomIndex = Math.floor(Math.random() * emptySquares.length);
			var targetSquare = emptySquares[randomIndex];
			// Add new rook
			targetSquare.square.setPiece(new ChessPiece('rook', 'black'));
		}
	};
	// Decrement frozen piece counters
	self.updateFrozenPieces = function () {
		for (var i = self.frozenPieces.length - 1; i >= 0; i--) {
			self.frozenPieces[i].turnsLeft--;
			// If no turns left, unfreeze the piece
			if (self.frozenPieces[i].turnsLeft <= 0) {
				var row = self.frozenPieces[i].row;
				var col = self.frozenPieces[i].col;
				// Only unfreeze if piece still exists at that position
				if (board[row][col].piece && board[row][col].piece.color === 'white') {
					board[row][col].piece.tint = 0xFFFFFF;
				}
				self.frozenPieces.splice(i, 1);
			}
		}
	};
	// Teleport a white piece to a dangerous position
	self.teleport = function () {
		var whitePieces = [];
		var dangerSquares = [];
		// Find all white pieces (except king)
		for (var row = 0; row < BOARD_SIZE; row++) {
			for (var col = 0; col < BOARD_SIZE; col++) {
				var square = board[row][col];
				if (square.piece && square.piece.color === 'white' && square.piece.type !== 'king') {
					whitePieces.push({
						square: square,
						row: row,
						col: col
					});
				}
			}
		}
		// Find all squares under attack by black pieces
		for (var row = 0; row < BOARD_SIZE; row++) {
			for (var col = 0; col < BOARD_SIZE; col++) {
				// Check if this square is attacked by any black piece
				if (isSquareAttacked(row, col, 'black') && !board[row][col].piece) {
					dangerSquares.push({
						row: row,
						col: col
					});
				}
			}
		}
		// If we have white pieces and danger squares
		if (whitePieces.length > 0 && dangerSquares.length > 0) {
			// Select random white piece
			var randomPieceIndex = Math.floor(Math.random() * whitePieces.length);
			var targetPiece = whitePieces[randomPieceIndex];
			// Select random danger square
			var randomSquareIndex = Math.floor(Math.random() * dangerSquares.length);
			var dangerSquare = dangerSquares[randomSquareIndex];
			// Teleport the piece
			var piece = targetPiece.square.piece;
			targetPiece.square.setPiece(null);
			board[dangerSquare.row][dangerSquare.col].setPiece(piece);
			// Visual effect - flash the teleported piece
			LK.effects.flashObject(board[dangerSquare.row][dangerSquare.col].piece, 0xFF00FF, 500);
		}
	};
	// Stores goatified pieces data
	self.goatifiedPieces = [];
	// Turn a white piece into a goat (moves like king)
	self.goatifyPiece = function () {
		var whitePieces = [];
		// Find all white pieces except the king (king is immune)
		for (var row = 0; row < BOARD_SIZE; row++) {
			for (var col = 0; col < BOARD_SIZE; col++) {
				var square = board[row][col];
				if (square.piece && square.piece.color === 'white' && square.piece.type !== 'king') {
					whitePieces.push({
						square: square,
						row: row,
						col: col,
						type: square.piece.type
					});
				}
			}
		}
		if (whitePieces.length > 0) {
			// Select random white piece
			var randomIndex = Math.floor(Math.random() * whitePieces.length);
			var targetPiece = whitePieces[randomIndex];
			// Add to goatified list with 2 turns duration
			self.goatifiedPieces.push({
				row: targetPiece.row,
				col: targetPiece.col,
				originalType: targetPiece.type,
				turnsLeft: 2
			});
			// Visual effect - tint piece to goat color
			targetPiece.square.piece.tint = 0x88BB33;
			// Show a goat indicator
			var goatText = new Text2("🐐", {
				size: 30,
				fill: 0xFFFFFF
			});
			goatText.anchor.set(0.5, 0.5);
			goatText.x = targetPiece.square.x + SQUARE_SIZE / 2;
			goatText.y = targetPiece.square.y + SQUARE_SIZE / 2 - 30;
			game.addChild(goatText);
			// Remove indicator after a short time
			LK.setTimeout(function () {
				game.removeChild(goatText);
			}, 1500);
		}
	};
	// Array to track trap positions
	self.trapSquares = [];
	// Place a bear trap on a random empty square
	self.placeTrap = function () {
		var emptySquares = [];
		// Find all empty squares
		for (var row = 0; row < BOARD_SIZE; row++) {
			for (var col = 0; col < BOARD_SIZE; col++) {
				var square = board[row][col];
				if (!square.piece) {
					emptySquares.push({
						row: row,
						col: col
					});
				}
			}
		}
		if (emptySquares.length > 0) {
			// Select random empty square
			var randomIndex = Math.floor(Math.random() * emptySquares.length);
			var trapSquare = emptySquares[randomIndex];
			// Add trap to the list
			self.trapSquares.push({
				row: trapSquare.row,
				col: trapSquare.col
			});
			// Visual indication of trap
			var trapIndicator = new Text2("⚠️", {
				size: 40,
				fill: 0xFF5500
			});
			trapIndicator.anchor.set(0.5, 0.5);
			trapIndicator.x = board[trapSquare.row][trapSquare.col].x + SQUARE_SIZE / 2;
			trapIndicator.y = board[trapSquare.row][trapSquare.col].y + SQUARE_SIZE / 2;
			game.addChild(trapIndicator);
			board[trapSquare.row][trapSquare.col].trapIndicator = trapIndicator;
		}
	};
	// Update goatified pieces counters
	self.updateGoatifiedPieces = function () {
		for (var i = self.goatifiedPieces.length - 1; i >= 0; i--) {
			self.goatifiedPieces[i].turnsLeft--;
			// If no turns left, restore the piece to its original type
			if (self.goatifiedPieces[i].turnsLeft <= 0) {
				var row = self.goatifiedPieces[i].row;
				var col = self.goatifiedPieces[i].col;
				var originalType = self.goatifiedPieces[i].originalType;
				// Only restore if piece still exists at that position and is white
				if (board[row][col].piece && board[row][col].piece.color === 'white') {
					// Reset tint
					board[row][col].piece.tint = 0xFFFFFF;
				}
				self.goatifiedPieces.splice(i, 1);
			}
		}
	};
	// Check if a piece is goatified
	self.isPieceGoatified = function (row, col) {
		for (var i = 0; i < self.goatifiedPieces.length; i++) {
			if (self.goatifiedPieces[i].row === row && self.goatifiedPieces[i].col === col) {
				return true;
			}
		}
		return false;
	};
	// Check if a square has a trap
	self.hasTrap = function (row, col) {
		for (var i = 0; i < self.trapSquares.length; i++) {
			if (self.trapSquares[i].row === row && self.trapSquares[i].col === col) {
				return true;
			}
		}
		return false;
	};
	// Trigger trap on a square and remove it
	self.triggerTrap = function (row, col) {
		for (var i = 0; i < self.trapSquares.length; i++) {
			if (self.trapSquares[i].row === row && self.trapSquares[i].col === col) {
				// Remove the trap indicator
				if (board[row][col].trapIndicator) {
					game.removeChild(board[row][col].trapIndicator);
					board[row][col].trapIndicator = null;
				}
				// Remove the trap from our list
				self.trapSquares.splice(i, 1);
				return true;
			}
		}
		return false;
	};
	// Check if a piece is frozen
	self.isPieceFrozen = function (row, col) {
		for (var i = 0; i < self.frozenPieces.length; i++) {
			if (self.frozenPieces[i].row === row && self.frozenPieces[i].col === col) {
				return true;
			}
		}
		return false;
	};
	return self;
});
var DailyChallengeScreen = Container.expand(function () {
	var self = Container.call(this);
	// Special rules collection - now the only focus of daily challenges
	var specialRules = [{
		name: 'Fog of War',
		description: 'You can only see squares your pieces can move to.',
		id: 'fogOfWar'
	}, {
		name: 'Backwards Pawns',
		description: 'Pawns can move and capture backwards.',
		id: 'backwardsPawns'
	}, {
		name: 'Capture the King',
		description: 'No check/checkmate. Capture the enemy king to win!',
		id: 'captureKing'
	}, {
		name: 'SHREDR Bishops',
		description: 'Bishops can jump over pieces and move one square horizontally.',
		id: 'shredrBishops'
	}, {
		name: 'Small Chess',
		description: 'Play on a 4x8 board without knights or bishops.',
		id: 'smallChess'
	}, {
		name: 'Transformo-fest',
		description: 'Pieces (except kings) randomly transform after moving!',
		id: 'transformoFest'
	}, {
		name: 'Dragon Boss',
		description: 'Capture the Dragon (Queen+Knight moves) using 3 Knights & 4 Bishops.',
		id: 'dragonBoss'
	}, {
		name: 'GOAT-ed Challenge',
		description: 'Your pieces (except king) are goats! Survive 25 turns.',
		id: 'goatedChallenge'
	}, {
		name: 'Icy Day',
		description: 'Pieces may freeze after moving! Some pawns are immune Yetis.',
		id: 'icyDay'
	}];
	// Select a random special rule for the "day"
	var selectedSpecialRule = specialRules[Math.floor(Math.random() * specialRules.length)];
	// --- UI Elements ---
	// Title Text
	var titleText = new Text2('Daily Challenge: Special Game', {
		size: 70,
		fill: 0xFFFFFF,
		wordWrap: true,
		// Enable word wrap
		wordWrapWidth: 1800 // Set max width before wrapping
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.y = -350; // Position higher up
	self.addChild(titleText);
	// Compile description for the selected special rule
	var finalDescription = 'Special Rule: ' + selectedSpecialRule.name + '\n' + selectedSpecialRule.description;
	// Description Text
	var descriptionText = new Text2(finalDescription, {
		size: 45,
		fill: 0xCCCCCC,
		align: 'center',
		// Center align text
		wordWrap: true,
		// Enable word wrap
		wordWrapWidth: 1600 // Set max width before wrapping
	});
	descriptionText.anchor.set(0.5, 0.5);
	descriptionText.y = -150; // Position below title
	self.addChild(descriptionText);
	// Start Challenge Button
	var startButton = new Text2('START CHALLENGE', {
		size: 70,
		fill: 0xFFFFFF
	});
	startButton.anchor.set(0.5, 0.5);
	startButton.y = 100;
	self.addChild(startButton);
	// Back Button
	var backButton = new Text2('< BACK', {
		size: 60,
		fill: 0xFFFFFF
	});
	backButton.anchor.set(0.5, 0.5);
	backButton.y = 300; // Position further down
	self.addChild(backButton);
	// Add backgrounds for buttons
	var buttons = [startButton, backButton];
	var buttonBackgrounds = [];
	for (var i = 0; i < buttons.length; i++) {
		var btn = buttons[i];
		var bg = LK.getAsset('blackSquare', {
			anchorX: 0.5,
			anchorY: 0.5,
			width: btn.width + 80,
			height: btn.height + 40,
			tint: 0x3a3a3a
		});
		bg.alpha = 0.7;
		bg.x = btn.x;
		bg.y = btn.y;
		buttonBackgrounds.push(bg);
		self.addChild(bg);
		self.addChild(btn); // Re-add button to put it on top
	}
	// --- Interactions ---
	// Start Button Interaction
	(function (index) {
		var btn = buttons[index];
		var bg = buttonBackgrounds[index];
		btn.interactive = true;
		btn.down = function (x, y, obj) {
			// Flash effect
			tween(bg, {
				alpha: 1
			}, {
				duration: 100,
				onFinish: function onComplete() {
					tween(bg, {
						alpha: 0.7
					}, {
						duration: 100
					});
				}
			});
			// Set the game mode and the specific rule
			game.gameMode = 'specialGame';
			game.specialRule = selectedSpecialRule.id; // Store the ID of the rule
			// Remove this screen
			if (game.dailyChallengeScreen) {
				game.removeChild(game.dailyChallengeScreen);
				game.dailyChallengeScreen = null;
			}
			game.showBotSelectionScreen(); // Go to bot selection for special game
		};
	})(0); // Index 0 is the start button
	// Back Button Interaction
	(function (index) {
		var btn = buttons[index];
		var bg = buttonBackgrounds[index];
		btn.interactive = true;
		btn.down = function (x, y, obj) {
			// Flash effect
			tween(bg, {
				alpha: 1
			}, {
				duration: 100,
				onFinish: function onComplete() {
					tween(bg, {
						alpha: 0.7
					}, {
						duration: 100
					});
				}
			});
			// Go back to the game mode selection screen
			game.showGameModeScreen();
		};
	})(1); // Index 1 is the back button
	self.update = function () {
		// Optional: Add animations if needed
	};
	return self;
});
var GameModeScreen = Container.expand(function () {
	var self = Container.call(this);
	// Create title text
	var titleText = new Text2('Select Game Mode', {
		size: 80,
		fill: 0xFFFFFF
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.y = -250;
	self.addChild(titleText);
	// Create mode buttons
	var classicButton = new Text2('CLASSIC', {
		size: 80,
		fill: 0xFFFFFF
	});
	classicButton.anchor.set(0.5, 0.5);
	classicButton.y = -150;
	self.addChild(classicButton);
	var crazyButton = new Text2('CRAZY MODE', {
		size: 80,
		fill: 0xFFFFFF
	});
	crazyButton.anchor.set(0.5, 0.5);
	crazyButton.y = 0;
	self.addChild(crazyButton);
	var dailyChallengeButton = new Text2('DAILY CHALLENGE', {
		size: 80,
		fill: 0xFFFFFF
	});
	dailyChallengeButton.anchor.set(0.5, 0.5);
	dailyChallengeButton.y = 150;
	self.addChild(dailyChallengeButton);
	var backButton = new Text2('< BACK', {
		size: 60,
		fill: 0xFFFFFF
	});
	backButton.anchor.set(0.5, 0.5);
	backButton.y = 350;
	self.addChild(backButton);
	// Add highlighting for buttons
	var buttons = [classicButton, crazyButton, dailyChallengeButton, backButton];
	var buttonBackgrounds = [];
	// Create button backgrounds
	for (var i = 0; i < buttons.length; i++) {
		var btn = buttons[i];
		var bg = LK.getAsset('blackSquare', {
			anchorX: 0.5,
			anchorY: 0.5,
			width: btn.width + 80,
			height: btn.height + 40,
			tint: 0x3a3a3a
		});
		bg.alpha = 0.7;
		bg.x = btn.x;
		bg.y = btn.y;
		buttonBackgrounds.push(bg);
		self.addChild(bg);
		self.addChild(btn); // Re-add button to put it on top
	}
	// Add button hover effects
	for (var i = 0; i < buttons.length; i++) {
		(function (index) {
			var btn = buttons[index];
			var bg = buttonBackgrounds[index];
			btn.interactive = true;
			btn.down = function (x, y, obj) {
				// Flash button when clicked
				tween(bg, {
					alpha: 1
				}, {
					duration: 100,
					onFinish: function onComplete() {
						tween(bg, {
							alpha: 0.7
						}, {
							duration: 100
						});
					}
				});
				// Handle button action
				if (index === 0) {
					// Classic mode
					game.gameMode = 'classic';
					game.showBotSelectionScreen(); // Go to bot selection
				} else if (index === 1) {
					// Crazy mode
					game.gameMode = 'crazy';
					game.showBotSelectionScreen(); // Go to bot selection
				} else if (index === 2) {
					// Daily Challenge mode
					game.gameMode = 'dailyChallenge';
					game.showDailyChallengeScreen(); // Show the dedicated screen
				} else if (index === 3) {
					// Back button
					game.showTitleScreen();
				}
			};
		})(i);
	}
	// Pulse animation for the first button
	var pulseScale = 1;
	var increasing = true;
	self.update = function () {
		// Pulse effect for the Classic button
		if (increasing) {
			pulseScale += 0.002;
			if (pulseScale >= 1.05) {
				increasing = false;
			}
		} else {
			pulseScale -= 0.002;
			if (pulseScale <= 0.95) {
				increasing = true;
			}
		}
		classicButton.scale.set(pulseScale);
		buttonBackgrounds[0].scale.set(pulseScale);
	};
	return self;
});
var TitleScreen = Container.expand(function () {
	var self = Container.call(this);
	// Create title text
	var titleText = new Text2('Crazy Chess', {
		size: 120,
		fill: 0xFFFFFF
	});
	titleText.anchor.set(0.5, 0.5);
	self.addChild(titleText);
	// Create start button
	var startButton = new Text2('TAP TO START', {
		size: 90,
		fill: 0xFFFFFF
	});
	startButton.anchor.set(0.5, 0.5);
	startButton.y = 250;
	self.addChild(startButton);
	// Add pulsing animation to the start button
	var pulseScale = 1;
	var increasing = true;
	self.update = function () {
		// Pulse effect for start button
		if (increasing) {
			pulseScale += 0.003;
			if (pulseScale >= 1.1) {
				increasing = false;
			}
		} else {
			pulseScale -= 0.003;
			if (pulseScale <= 0.9) {
				increasing = true;
			}
		}
		startButton.scale.set(pulseScale);
	};
	// Handle tap anywhere to start
	self.down = function () {
		game.showGameModeScreen();
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	// No title, no description
	// Always backgroundColor is black
	backgroundColor: 0x000000
});

/**** 
* Game Code
****/ 
// Game constants - Default to 8x8
var BOARD_SIZE = 8; // Default board size
var BOARD_SIZE_X = 8;
var BOARD_SIZE_Y = 8;
var SQUARE_SIZE = 100;
var BOARD_OFFSET_X = (2048 - BOARD_SIZE_X * SQUARE_SIZE) / 2;
var BOARD_OFFSET_Y = (2732 - BOARD_SIZE_Y * SQUARE_SIZE) / 2;
var BOARD_START_COL = 0; // For small chess adjustment
var BOARD_END_COL = 7; // For small chess adjustment
// Game state variables
var board = [];
var selectedSquare = null;
var validMoves = [];
var currentPlayer = 'white';
var gameState = 'title'; // 'title', 'modeSelect', 'botSelect', 'playing', 'check', 'checkmate', 'stalemate', 'dailyChallenge', 'specialGame'
var specialRule = null; // Stores the active special rule for daily challenges
var aiThinking = false;
var titleScreen = null;
var gameModeScreen = null;
var botSelectionScreen = null; // Add variable for the bot selection screen
var dailyChallengeScreen = null; // Add variable for the daily challenge screen
var selectedBot = ''; // Add variable to store the selected bot
// gameMode is now set on the game object, not as a separate variable
var crazyAbilities = new CrazyAbility();
var crazyAbilityChance = 0.4; // 40% chance of AI using ability after a move
// Special Mode Variables
var goatedTurnCounter = 0;
var ICY_DAY_FREEZE_CHANCE = 0.3; // 30% chance to freeze
var ICY_DAY_FREEZE_TURNS = 2; // Freeze duration
var icyDayFrozenPieces = []; // Stores { row, col, turnsLeft } for Icy Day
var yetiPawns = []; // Stores { row, col } of Yeti pawns
// Variables for draw conditions
var movesSinceCaptureOrPawn = 0; // For 50-move rule
var lastMove = null; // To track piece captures and pawn moves
// Initialize the chess board
function initializeBoard() {
	board = [];
	// Adjust board size and offsets for Small Chess
	if (game.gameMode === 'specialGame' && game.specialRule === 'smallChess') {
		BOARD_SIZE_X = 4;
		BOARD_SIZE_Y = 8;
		BOARD_START_COL = 2;
		BOARD_END_COL = 5;
		BOARD_OFFSET_X = (2048 - BOARD_SIZE_X * SQUARE_SIZE) / 2;
		BOARD_OFFSET_Y = (2732 - BOARD_SIZE_Y * SQUARE_SIZE) / 2;
	} else {
		// Reset to default if not small chess
		BOARD_SIZE_X = 8;
		BOARD_SIZE_Y = 8;
		BOARD_START_COL = 0;
		BOARD_END_COL = 7;
		BOARD_OFFSET_X = (2048 - BOARD_SIZE_X * SQUARE_SIZE) / 2;
		BOARD_OFFSET_Y = (2732 - BOARD_SIZE_Y * SQUARE_SIZE) / 2;
	}
	// Create the chess board based on dimensions
	for (var row = 0; row < BOARD_SIZE_Y; row++) {
		board[row] = [];
		for (var col = 0; col < BOARD_SIZE_X; col++) {
			var boardCol = col + BOARD_START_COL; // Map visual column to board array column
			var squareColor = (row + boardCol) % 2 === 0 ? 'white' : 'black';
			var square = new ChessSquare(row, boardCol, squareColor); // Store the actual board column
			square.x = BOARD_OFFSET_X + col * SQUARE_SIZE; // Visual position based on 0 to BOARD_SIZE_X-1
			square.y = BOARD_OFFSET_Y + row * SQUARE_SIZE;
			// Initialize board array slots, only add visible squares to game
			board[row][boardCol] = square; // Use actual board column index
			game.addChild(square);
		}
		// Initialize non-visible columns for internal logic if needed (e.g. full 8x8 array)
		if (game.gameMode !== 'specialGame' || game.specialRule !== 'smallChess') {
			// Standard 8x8 initialization already covered
		} else {
			// For small chess, fill the rest of the 8x8 array rows with null or placeholder if needed by logic
			// This example assumes logic primarily uses BOARD_START_COL and BOARD_END_COL checks
			for (var r = 0; r < BOARD_SIZE_Y; ++r) {
				for (var c = 0; c < 8; ++c) {
					if (c < BOARD_START_COL || c > BOARD_END_COL) {
						if (!board[r]) {
							board[r] = [];
						}
						board[r][c] = null; // Or a placeholder indicating off-board
					}
				}
			}
		}
	}
	// Place the pieces on the board
	placePieces();
}
// Place all chess pieces in their starting positions
function placePieces() {
	if (game.gameMode === 'specialGame' && game.specialRule === 'smallChess') {
		// Small Chess Setup (4x8 board, cols 2-5)
		// Place pawns
		for (var col = BOARD_START_COL; col <= BOARD_END_COL; col++) {
			board[1][col].setPiece(new ChessPiece('pawn', 'black'));
			board[6][col].setPiece(new ChessPiece('pawn', 'white'));
		}
		// Place rooks
		board[0][BOARD_START_COL].setPiece(new ChessPiece('rook', 'black')); // Col 2
		board[0][BOARD_END_COL].setPiece(new ChessPiece('rook', 'black')); // Col 5
		board[7][BOARD_START_COL].setPiece(new ChessPiece('rook', 'white')); // Col 2
		board[7][BOARD_END_COL].setPiece(new ChessPiece('rook', 'white')); // Col 5
		// Place queens
		board[0][BOARD_START_COL + 1].setPiece(new ChessPiece('queen', 'black')); // Col 3
		board[7][BOARD_START_COL + 1].setPiece(new ChessPiece('queen', 'white')); // Col 3
		// Place kings
		board[0][BOARD_START_COL + 2].setPiece(new ChessPiece('king', 'black')); // Col 4
		board[7][BOARD_START_COL + 2].setPiece(new ChessPiece('king', 'white')); // Col 4
		// No knights or bishops
	} else if (game.gameMode === 'specialGame' && game.specialRule === 'dragonBoss') {
		// Dragon Boss Setup
		// White: King, 4 Bishops, 3 Knights
		board[7][4].setPiece(new ChessPiece('king', 'white')); // e1
		board[7][2].setPiece(new ChessPiece('bishop', 'white')); // c1
		board[7][3].setPiece(new ChessPiece('bishop', 'white')); // d1
		board[7][5].setPiece(new ChessPiece('bishop', 'white')); // f1
		board[7][6].setPiece(new ChessPiece('bishop', 'white')); // g1
		board[7][1].setPiece(new ChessPiece('knight', 'white')); // b1
		board[7][7].setPiece(new ChessPiece('knight', 'white')); // h1
		board[6][4].setPiece(new ChessPiece('knight', 'white')); // e2 - One knight forward
		// Black: Dragon (use Queen asset for now, moves handled separately)
		board[0][4].setPiece(new ChessPiece('queen', 'black')); // Dragon on e8
		board[0][4].piece.isDragon = true; // Mark as Dragon
	} else {
		// Standard Setup
		// Place pawns
		for (var col = 0; col < 8; col++) {
			//{8q} // Use 8 explicitly
			board[1][col].setPiece(new ChessPiece('pawn', 'black'));
			board[6][col].setPiece(new ChessPiece('pawn', 'white'));
		}
		// Place rooks
		board[0][0].setPiece(new ChessPiece('rook', 'black'));
		board[0][7].setPiece(new ChessPiece('rook', 'black'));
		board[7][0].setPiece(new ChessPiece('rook', 'white'));
		board[7][7].setPiece(new ChessPiece('rook', 'white'));
		// Place knights
		board[0][1].setPiece(new ChessPiece('knight', 'black'));
		board[0][6].setPiece(new ChessPiece('knight', 'black'));
		board[7][1].setPiece(new ChessPiece('knight', 'white'));
		board[7][6].setPiece(new ChessPiece('knight', 'white'));
		// Place bishops
		board[0][2].setPiece(new ChessPiece('bishop', 'black'));
		board[0][5].setPiece(new ChessPiece('bishop', 'black'));
		board[7][2].setPiece(new ChessPiece('bishop', 'white'));
		board[7][5].setPiece(new ChessPiece('bishop', 'white'));
		// Place queens
		board[0][3].setPiece(new ChessPiece('queen', 'black'));
		board[7][3].setPiece(new ChessPiece('queen', 'white'));
		// Place kings
		board[0][4].setPiece(new ChessPiece('king', 'black'));
		board[7][4].setPiece(new ChessPiece('king', 'white'));
	}
	// GOAT-ed Challenge: Make all white pieces (except king) goatified
	if (game.gameMode === 'specialGame' && game.specialRule === 'goatedChallenge') {
		for (var r = 0; r < 8; r++) {
			for (var c = 0; c < 8; c++) {
				if (board[r][c] && board[r][c].piece && board[r][c].piece.color === 'white' && board[r][c].piece.type !== 'king') {
					board[r][c].piece.isPermanentlyGoatified = true;
					board[r][c].piece.tint = 0x88BB33; // Goat color tint
				}
			}
		}
		goatedTurnCounter = 0; // Reset turn counter
	}
	// Icy Day: Designate some white pawns as Yetis
	if (game.gameMode === 'specialGame' && game.specialRule === 'icyDay') {
		icyDayFrozenPieces = []; // Reset frozen list
		yetiPawns = []; // Reset yeti list
		// Make pawns on b, d, e, g Yetis
		var yetiCols = [1, 3, 4, 6]; // b, d, e, g columns
		for (var i = 0; i < yetiCols.length; i++) {
			var col = yetiCols[i];
			if (board[6][col] && board[6][col].piece && board[6][col].piece.type === 'pawn') {
				board[6][col].piece.isYeti = true;
				board[6][col].piece.tint = 0xADD8E6; // Light blue tint for Yetis
				yetiPawns.push({
					row: 6,
					col: col
				});
			}
		}
	}
	// Special rule for 'King' bot: remove the black queen
	if (game.selectedBot === 'King' && game.gameMode !== 'specialGame') {
		// Don't apply if it's a special game
		if (board[0][3].piece && board[0][3].piece.type === 'queen' && board[0][3].piece.color === 'black') {
			board[0][3].setPiece(null);
		}
	}
}
// Select a square on the chess board
game.selectSquare = function (square) {
	// If AI is thinking, don't allow moves
	if (aiThinking || gameState === 'checkmate' || gameState === 'stalemate') {
		return;
	}
	// If the current player is not the human player, don't allow moves
	if (currentPlayer !== 'white') {
		return;
	}
	// Check if piece is frozen (Only in Crazy Mode)
	if (game.gameMode === 'crazy' && square.piece && square.piece.color === 'white' && crazyAbilities.isPieceFrozen(square.row, square.col)) {
		// Show notification that piece is frozen
		var notification = new Text2('This piece is frozen!', {
			size: 40,
			fill: 0x00AAFF
		});
		notification.anchor.set(0.5, 0.5);
		notification.x = 2048 / 2;
		notification.y = 2732 / 2 - 200;
		game.addChild(notification);
		// Remove notification after delay
		LK.setTimeout(function () {
			game.removeChild(notification);
		}, 1500);
		return;
	}
	// Check if piece is frozen (Icy Day Mode)
	if (game.gameMode === 'specialGame' && game.specialRule === 'icyDay' && square.piece && square.piece.isFrozenIcy) {
		// Show notification that piece is frozen
		var notificationIcy = new Text2('This piece is frozen!', {
			size: 40,
			//{90} // Reuse ID if appropriate
			fill: 0x00AAFF
		}); //{91} // Reuse ID if appropriate
		notificationIcy.anchor.set(0.5, 0.5); //{92} // Reuse ID if appropriate
		notificationIcy.x = 2048 / 2; //{93} // Reuse ID if appropriate
		notificationIcy.y = 2732 / 2 - 200;
		game.addChild(notificationIcy); //{94} // Reuse ID if appropriate
		// Remove notification after delay
		LK.setTimeout(function () {
			//{95} // Reuse ID if appropriate
			game.removeChild(notificationIcy); //{96} // Reuse ID if appropriate
		}, 1500); //{97} // Reuse ID if appropriate
		return; // Don't allow selection
	}
	// Clear previous selections
	clearHighlights();
	// If a square is already selected and the new square is a valid move
	if (selectedSquare && isValidMove(square)) {
		// Move the piece
		var from = selectedSquare;
		var to = square;
		movePiece(from, to);
		// Reset selection state
		selectedSquare = null;
		validMoves = [];
		clearHighlights(); // Clear highlights after move
		// Check if the move ended the game via specific rules (like king capture)
		// gameState might have been updated in movePiece
		if (gameState === 'checkmate' || gameState === 'stalemate') {
			// endGame was already called in movePiece
			return;
		}
		// Switch to the next player
		switchPlayer(); //{9C} // currentPlayer is now the opponent ('black')
		// Now check the state for the player whose turn it just became
		checkGameState(); //{9B} // Checks state for 'black'
		// If the game ended due to checkmate/stalemate after the switch
		if (gameState === 'checkmate' || gameState === 'stalemate') {
			// Game end message already shown by checkGameState -> endGame
			return;
		}
		// If it's AI's turn (now black) and game is still going
		if (currentPlayer === 'black') {
			aiThinking = true;
			LK.setTimeout(makeAIMove, 1000);
		}
	}
	// If clicking on a piece of the current player
	else if (square.piece && square.piece.color === currentPlayer) {
		// Select the square
		selectedSquare = square;
		square.highlight('selected');
		// Calculate valid moves
		validMoves = calculateValidMoves(square);
		// Highlight valid moves
		for (var i = 0; i < validMoves.length; i++) {
			var move = validMoves[i];
			board[move.row][move.col].highlight('validMove');
		}
	}
};
// Check if a move to the target square is valid
function isValidMove(targetSquare) {
	for (var i = 0; i < validMoves.length; i++) {
		var move = validMoves[i];
		if (move.row === targetSquare.row && move.col === targetSquare.col) {
			return true;
		}
	}
	return false;
}
// Move a piece from one square to another
function movePiece(fromSquare, toSquare) {
	var piece = fromSquare.piece;
	// Check for pawn move or capture (for 50-move rule)
	var isPawnMove = piece.type === 'pawn';
	var isCapture = toSquare.piece !== null;
	// Check for trap only in crazy mode
	var trapTriggered = false;
	if (game.gameMode === 'crazy' && crazyAbilities.hasTrap(toSquare.row, toSquare.col)) {
		// Trigger trap effect
		trapTriggered = crazyAbilities.triggerTrap(toSquare.row, toSquare.col);
		// If trap is triggered and the piece is white (not king - king is immune)
		if (trapTriggered && piece.color === 'white' && piece.type !== 'king') {
			// Show trap activation message
			var trapMessage = new Text2("TRAP TRIGGERED!", {
				size: 50,
				fill: 0xFF0000
			});
			trapMessage.anchor.set(0.5, 0.5);
			trapMessage.x = 2048 / 2;
			trapMessage.y = 2732 / 2 - 250;
			game.addChild(trapMessage);
			// Remove message after delay
			LK.setTimeout(function () {
				game.removeChild(trapMessage);
			}, 1500);
			// Piece is captured by the trap
			fromSquare.setPiece(null);
			LK.getSound('capture').play();
			// Update move counter for 50-move rule
			movesSinceCaptureOrPawn = 0;
			// Store last move information
			lastMove = {
				from: {
					row: fromSquare.row,
					col: fromSquare.col
				},
				to: {
					row: toSquare.row,
					col: toSquare.col
				},
				piece: piece.type,
				color: piece.color,
				isCapture: true,
				isTrap: true
			};
			return; // Skip the rest of the move logic
		}
	}
	// Handle capture
	if (isCapture) {
		LK.getSound('capture').play();
	} else {
		LK.getSound('move').play();
	}
	// Move the piece
	var capturedPiece = toSquare.piece; // Store captured piece before overwriting
	fromSquare.setPiece(null);
	toSquare.setPiece(piece);
	// Mark piece as moved (for castling and pawn double move)
	piece.hasMoved = true;
	// Capture the King Rule: Check if a king was captured
	if (game.gameMode === 'specialGame' && game.specialRule === 'captureKing' && capturedPiece && capturedPiece.type === 'king') {
		gameState = 'checkmate'; // Use checkmate state to signify win
		endGame('King Captured! ' + piece.color + ' wins!');
		return; // End the move function early
	}
	// Handle pawn promotion
	if (piece.type === 'pawn' && (toSquare.row === 0 || toSquare.row === 7)) {
		promotePawn(toSquare);
	}
	// Update move counter for 50-move rule
	if (isPawnMove || isCapture) {
		movesSinceCaptureOrPawn = 0;
	} else {
		movesSinceCaptureOrPawn++;
	}
	// Store last move information
	lastMove = {
		from: {
			row: fromSquare.row,
			col: fromSquare.col
		},
		to: {
			row: toSquare.row,
			col: toSquare.col
		},
		piece: piece.type,
		color: piece.color,
		isCapture: isCapture
	};
	// --- Special Mode Post-Move Actions ---
	// Transformo-fest: Transform piece after moving (if not king)
	if (game.gameMode === 'specialGame' && game.specialRule === 'transformoFest' && piece.type !== 'king') {
		var possibleTypes = ['pawn', 'rook', 'knight', 'bishop', 'queen'];
		var randomType = possibleTypes[Math.floor(Math.random() * possibleTypes.length)];
		toSquare.setPiece(new ChessPiece(randomType, piece.color));
		// Add a small visual indicator? Maybe flash?
		LK.effects.flashObject(toSquare.piece, 0xFFFF00, 300);
	}
	// Icy Day: Chance to freeze moved piece (if not king or yeti)
	if (game.gameMode === 'specialGame' && game.specialRule === 'icyDay' && piece.type !== 'king' && !piece.isYeti) {
		if (Math.random() < ICY_DAY_FREEZE_CHANCE) {
			// Check if already frozen
			var alreadyFrozen = false;
			for (var i = 0; i < icyDayFrozenPieces.length; i++) {
				if (icyDayFrozenPieces[i].row === toSquare.row && icyDayFrozenPieces[i].col === toSquare.col) {
					alreadyFrozen = true;
					break;
				}
			}
			// Freeze if not already frozen
			if (!alreadyFrozen) {
				icyDayFrozenPieces.push({
					row: toSquare.row,
					col: toSquare.col,
					turnsLeft: ICY_DAY_FREEZE_TURNS
				});
				if (toSquare.piece) {
					// Check if piece still exists (could have transformed?)
					toSquare.piece.tint = 0x00AAFF; // Blue tint for frozen
					toSquare.piece.isFrozenIcy = true; // Mark as frozen
				}
				// Optional: Add notification text
				var freezeText = new Text2("FROZEN!", {
					size: 30,
					fill: 0x00AAFF
				});
				freezeText.anchor.set(0.5, 1.0);
				freezeText.x = toSquare.x + SQUARE_SIZE / 2;
				freezeText.y = toSquare.y; // Position above the square
				game.addChild(freezeText);
				LK.setTimeout(function () {
					game.removeChild(freezeText);
				}, 1000);
			}
		}
	}
	// Increment GOAT-ed turn counter after white moves
	if (game.gameMode === 'specialGame' && game.specialRule === 'goatedChallenge' && piece.color === 'white') {
		goatedTurnCounter++;
	}
}
// Promote a pawn to a queen
function promotePawn(square) {
	var piece = square.piece;
	square.setPiece(new ChessPiece('queen', piece.color));
	LK.getSound('promotion').play();
}
// Clear highlights from all squares
function clearHighlights() {
	for (var row = 0; row < BOARD_SIZE; row++) {
		for (var col = 0; col < BOARD_SIZE; col++) {
			if (board[row][col]) {
				board[row][col].highlight();
			}
		}
	}
}
// Calculate valid moves for a piece
function calculateValidMoves(square) {
	var piece = square.piece;
	var moves = [];
	if (!piece) {
		return moves;
	}
	var row = square.row;
	var col = square.col;
	// Check for special movement rules first
	// GOAT-ed Challenge: Permanently goatified white pieces move like kings
	if (game.gameMode === 'specialGame' && game.specialRule === 'goatedChallenge' && piece.color === 'white' && piece.isPermanentlyGoatified) {
		calculateKingMoves(row, col, piece, moves);
	}
	// Dragon Boss: Dragon piece moves like Queen + Knight
	else if (game.gameMode === 'specialGame' && game.specialRule === 'dragonBoss' && piece.isDragon) {
		calculateRookMoves(row, col, piece, moves); // Queen part 1
		calculateBishopMoves(row, col, piece, moves); // Queen part 2
		calculateKnightMoves(row, col, piece, moves); // Knight part
	}
	// Check if piece is temporarily goatified (Crazy Mode)
	else if (game.gameMode === 'crazy' && piece.color === 'white' && crazyAbilities.isPieceGoatified(row, col)) {
		// Goatified pieces move like kings
		calculateKingMoves(row, col, piece, moves);
	} else {
		// Regular move calculation based on piece type (apply special rules within these)
		switch (piece.type) {
			case 'pawn':
				calculatePawnMoves(row, col, piece, moves);
				break;
			case 'rook':
				calculateRookMoves(row, col, piece, moves);
				break;
			case 'knight':
				calculateKnightMoves(row, col, piece, moves);
				break;
			case 'bishop':
				calculateBishopMoves(row, col, piece, moves);
				break;
			case 'queen':
				calculateRookMoves(row, col, piece, moves);
				calculateBishopMoves(row, col, piece, moves);
				break;
			case 'king':
				calculateKingMoves(row, col, piece, moves);
				break;
		}
	}
	// Filter out moves that would put the king in check
	return filterCheckMoves(square, moves);
}
// Calculate valid moves for a pawn
function calculatePawnMoves(row, col, piece, moves) {
	var direction = piece.color === 'white' ? -1 : 1;
	// Move forward one square
	if (isValidSquare(row + direction, col) && !board[row + direction][col].piece) {
		moves.push({
			row: row + direction,
			col: col
		});
		// Move forward two squares from starting position
		if (!piece.hasMoved && isValidSquare(row + 2 * direction, col) && !board[row + 2 * direction][col].piece) {
			moves.push({
				row: row + 2 * direction,
				col: col
			});
		}
	}
	// Captures
	var captureDirections = [{
		row: direction,
		col: -1
	}, {
		row: direction,
		col: 1
	}];
	for (var i = 0; i < captureDirections.length; i++) {
		var dir = captureDirections[i];
		var newRow = row + dir.row;
		var newCol = col + dir.col;
		if (isValidSquare(newRow, newCol) && board[newRow][newCol].piece && board[newRow][newCol].piece.color !== piece.color) {
			moves.push({
				row: newRow,
				col: newCol
			});
		}
	}
	// Backwards Pawns Rule
	if (game.gameMode === 'specialGame' && game.specialRule === 'backwardsPawns') {
		var backwardDirection = -direction; // Opposite direction
		// Move backward one square
		if (isValidSquare(row + backwardDirection, col) && !board[row + backwardDirection][col].piece) {
			moves.push({
				row: row + backwardDirection,
				col: col
			});
			// No double move backwards
		}
		// Backward captures
		var backwardCaptureDirections = [{
			row: backwardDirection,
			col: -1
		}, {
			row: backwardDirection,
			col: 1
		}];
		for (var i = 0; i < backwardCaptureDirections.length; i++) {
			var bDir = backwardCaptureDirections[i];
			var bNewRow = row + bDir.row;
			var bNewCol = col + bDir.col;
			if (isValidSquare(bNewRow, bNewCol) && board[bNewRow][bNewCol].piece && board[bNewRow][bNewCol].piece.color !== piece.color) {
				moves.push({
					row: bNewRow,
					col: bNewCol
				});
			}
		}
	}
}
// Calculate valid moves for a rook
function calculateRookMoves(row, col, piece, moves) {
	var directions = [{
		row: -1,
		col: 0
	},
	// up
	{
		row: 1,
		col: 0
	},
	// down
	{
		row: 0,
		col: -1
	},
	// left
	{
		row: 0,
		col: 1
	} // right
	];
	calculateSlidingMoves(row, col, piece, moves, directions);
}
// Calculate valid moves for a bishop
function calculateBishopMoves(row, col, piece, moves) {
	var directions = [{
		row: -1,
		col: -1
	},
	// up-left
	{
		row: -1,
		col: 1
	},
	// up-right
	{
		row: 1,
		col: -1
	},
	// down-left
	{
		row: 1,
		col: 1
	} // down-right
	];
	var diagonalMoves = []; // Store initial diagonal moves before filtering/adding horizontal
	calculateSlidingMoves(row, col, piece, moves, directions);
	// SHREDR Bishops: Add horizontal move option
	if (game.gameMode === 'specialGame' && game.specialRule === 'shredrBishops') {
		var shredrMoves = [];
		for (var i = 0; i < moves.length; i++) {
			var move = moves[i];
			shredrMoves.push(move); // Keep the original diagonal move
			// Add horizontal moves from the landing square
			var landingRow = move.row;
			var landingCol = move.col;
			// Check horizontal left
			if (isValidSquare(landingRow, landingCol - 1)) {
				var leftSquare = board[landingRow][landingCol - 1];
				if (!leftSquare || !leftSquare.piece || leftSquare.piece.color !== piece.color) {
					shredrMoves.push({
						row: landingRow,
						col: landingCol - 1
					});
				}
			}
			// Check horizontal right
			if (isValidSquare(landingRow, landingCol + 1)) {
				var rightSquare = board[landingRow][landingCol + 1];
				if (!rightSquare || !rightSquare.piece || rightSquare.piece.color !== piece.color) {
					shredrMoves.push({
						row: landingRow,
						col: landingCol + 1
					});
				}
			}
		}
		// Replace original moves with shredr moves (includes original + horizontal)
		// Need to clear original moves and add shredrMoves back.
		// The 'moves' array is passed by reference, modify it directly.
		moves.length = 0; // Clear the array
		for (var k = 0; k < shredrMoves.length; k++) {
			// Avoid duplicates (simple check, might need improvement for complex scenarios)
			var exists = false;
			for (var j = 0; j < moves.length; j++) {
				if (moves[j].row === shredrMoves[k].row && moves[j].col === shredrMoves[k].col) {
					exists = true;
					break;
				}
			}
			if (!exists) {
				moves.push(shredrMoves[k]);
			}
		}
	}
}
// Calculate valid moves for sliding pieces (rook, bishop, queen)
function calculateSlidingMoves(row, col, piece, moves, directions) {
	for (var i = 0; i < directions.length; i++) {
		var dir = directions[i];
		var newRow = row + dir.row;
		var newCol = col + dir.col;
		while (isValidSquare(newRow, newCol)) {
			var targetSquare = board[newRow][newCol];
			if (!targetSquare.piece) {
				// Empty square, can move here
				moves.push({
					row: newRow,
					col: newCol
				});
			} else {
				// Found a piece
				if (targetSquare.piece.color !== piece.color) {
					// Can capture opponent's piece
					moves.push({
						row: newRow,
						col: newCol
					});
				}
				// SHREDR Bishops can jump, so don't break here for them
				if (!(game.gameMode === 'specialGame' && game.specialRule === 'shredrBishops' && piece.type === 'bishop')) {
					// Can't move past a piece (unless SHREDR bishop)
					break;
				}
			}
			newRow += dir.row;
			newCol += dir.col;
		}
	}
}
// Calculate valid moves for a knight
function calculateKnightMoves(row, col, piece, moves) {
	var knightDirections = [{
		row: -2,
		col: -1
	}, {
		row: -2,
		col: 1
	}, {
		row: -1,
		col: -2
	}, {
		row: -1,
		col: 2
	}, {
		row: 1,
		col: -2
	}, {
		row: 1,
		col: 2
	}, {
		row: 2,
		col: -1
	}, {
		row: 2,
		col: 1
	}];
	for (var i = 0; i < knightDirections.length; i++) {
		var dir = knightDirections[i];
		var newRow = row + dir.row;
		var newCol = col + dir.col;
		if (isValidSquare(newRow, newCol)) {
			var targetSquare = board[newRow][newCol];
			if (!targetSquare.piece || targetSquare.piece.color !== piece.color) {
				moves.push({
					row: newRow,
					col: newCol
				});
			}
		}
	}
}
// Calculate valid moves for a king
function calculateKingMoves(row, col, piece, moves) {
	var kingDirections = [{
		row: -1,
		col: -1
	}, {
		row: -1,
		col: 0
	}, {
		row: -1,
		col: 1
	}, {
		row: 0,
		col: -1
	}, {
		row: 0,
		col: 1
	}, {
		row: 1,
		col: -1
	}, {
		row: 1,
		col: 0
	}, {
		row: 1,
		col: 1
	}];
	for (var i = 0; i < kingDirections.length; i++) {
		var dir = kingDirections[i];
		var newRow = row + dir.row;
		var newCol = col + dir.col;
		if (isValidSquare(newRow, newCol)) {
			var targetSquare = board[newRow][newCol];
			if (!targetSquare.piece || targetSquare.piece.color !== piece.color) {
				moves.push({
					row: newRow,
					col: newCol
				});
			}
		}
	}
	// Castling
	if (!piece.hasMoved) {
		// Kingside castling
		if (canCastle(row, col, 0, 3)) {
			moves.push({
				row: row,
				col: col + 2
			});
		}
		// Queenside castling
		if (canCastle(row, col, 0, -4)) {
			moves.push({
				row: row,
				col: col - 2
			});
		}
	}
}
// Check if castling is possible
function canCastle(row, col, rowOffset, colOffset) {
	var rookCol = colOffset > 0 ? 7 : 0;
	var rookRow = row;
	// Check if there's a rook in the corner
	var rookSquare = board[rookRow][rookCol];
	if (!rookSquare.piece || rookSquare.piece.type !== 'rook' || rookSquare.piece.hasMoved) {
		return false;
	}
	// Check if there are pieces between the king and the rook
	var startCol = Math.min(col, rookCol) + 1;
	var endCol = Math.max(col, rookCol) - 1;
	for (var c = startCol; c <= endCol; c++) {
		if (board[row][c].piece) {
			return false;
		}
	}
	// Check if the king would move through or into check
	var direction = colOffset > 0 ? 1 : -1;
	if (isSquareAttacked(row, col, otherPlayer(currentPlayer)) || isSquareAttacked(row, col + direction, otherPlayer(currentPlayer)) || isSquareAttacked(row, col + 2 * direction, otherPlayer(currentPlayer))) {
		return false;
	}
	return true;
}
// Filter out moves that would put the king in check
function filterCheckMoves(fromSquare, moves) {
	var validMoves = [];
	var piece = fromSquare.piece;
	// Capture the King Rule: King doesn't care about checks, skip filtering
	if (game.gameMode === 'specialGame' && game.specialRule === 'captureKing') {
		// Return all moves unfiltered for check
		for (var i = 0; i < moves.length; i++) {
			validMoves.push(moves[i]);
		}
		return validMoves;
	}
	// Standard check filtering
	for (var i = 0; i < moves.length; i++) {
		var move = moves[i];
		// Make sure the move exists and has valid row/col properties
		if (!move || !board[move.row] || !board[move.row][move.col]) {
			continue;
		}
		// Simulate the move
		var originalPiece = board[move.row][move.col].piece;
		board[move.row][move.col].piece = piece;
		board[fromSquare.row][fromSquare.col].piece = null;
		// Check if the king is in check after the move
		var inCheck = isKingInCheck(piece.color);
		// Undo the move
		board[fromSquare.row][fromSquare.col].piece = piece;
		board[move.row][move.col].piece = originalPiece;
		if (!inCheck) {
			validMoves.push(move);
		}
	}
	return validMoves;
}
// Check if a square is valid (within the board)
function isValidSquare(row, col) {
	// Use dynamic board sizes and column limits
	return row >= 0 && row < BOARD_SIZE_Y && col >= BOARD_START_COL && col <= BOARD_END_COL;
}
// Check if the king is in check
function isKingInCheck(color) {
	// Find the king
	var kingSquare = findKing(color);
	if (!kingSquare) {
		return false;
	}
	// Check if the king is attacked by any opponent's piece
	return isSquareAttacked(kingSquare.row, kingSquare.col, otherPlayer(color));
}
// Check if a square is attacked by any piece of the given color
function isSquareAttacked(row, col, attackerColor) {
	for (var r = 0; r < BOARD_SIZE; r++) {
		for (var c = 0; c < BOARD_SIZE; c++) {
			var square = board[r][c];
			if (square.piece && square.piece.color === attackerColor) {
				var moves = [];
				switch (square.piece.type) {
					case 'pawn':
						// Pawns attack diagonally
						var direction = square.piece.color === 'white' ? -1 : 1;
						var attackDirections = [{
							row: direction,
							col: -1
						}, {
							row: direction,
							col: 1
						}];
						for (var i = 0; i < attackDirections.length; i++) {
							var dir = attackDirections[i];
							var attackRow = r + dir.row;
							var attackCol = c + dir.col;
							if (attackRow === row && attackCol === col) {
								return true;
							}
						}
						break;
					case 'rook':
						calculateRookMoves(r, c, square.piece, moves);
						break;
					case 'knight':
						calculateKnightMoves(r, c, square.piece, moves);
						break;
					case 'bishop':
						calculateBishopMoves(r, c, square.piece, moves);
						break;
					case 'queen':
						calculateRookMoves(r, c, square.piece, moves);
						calculateBishopMoves(r, c, square.piece, moves);
						break;
					case 'king':
						var kingDirections = [{
							row: -1,
							col: -1
						}, {
							row: -1,
							col: 0
						}, {
							row: -1,
							col: 1
						}, {
							row: 0,
							col: -1
						}, {
							row: 0,
							col: 1
						}, {
							row: 1,
							col: -1
						}, {
							row: 1,
							col: 0
						}, {
							row: 1,
							col: 1
						}];
						for (var i = 0; i < kingDirections.length; i++) {
							var dir = kingDirections[i];
							var attackRow = r + dir.row;
							var attackCol = c + dir.col;
							if (attackRow === row && attackCol === col) {
								return true;
							}
						}
						break;
				}
				// Check if the square is in the list of moves
				for (var i = 0; i < moves.length; i++) {
					var move = moves[i];
					if (move.row === row && move.col === col) {
						return true;
					}
				}
			}
		}
	}
	return false;
}
// Find the king of the given color
function findKing(color) {
	for (var row = 0; row < BOARD_SIZE; row++) {
		for (var col = 0; col < BOARD_SIZE; col++) {
			var square = board[row][col];
			if (square.piece && square.piece.type === 'king' && square.piece.color === color) {
				return {
					row: row,
					col: col
				};
			}
		}
	}
	return null;
}
// Get the other player's color
function otherPlayer(color) {
	return color === 'white' ? 'black' : 'white';
}
// Switch the current player
function switchPlayer() {
	currentPlayer = otherPlayer(currentPlayer);
	// Icy Day: Update frozen piece counters at the start of the next player's turn
	if (game.gameMode === 'specialGame' && game.specialRule === 'icyDay') {
		updateIcyDayFrozenPieces();
	}
}
// Helper function to update Icy Day frozen pieces
function updateIcyDayFrozenPieces() {
	for (var i = icyDayFrozenPieces.length - 1; i >= 0; i--) {
		var frozen = icyDayFrozenPieces[i];
		frozen.turnsLeft--;
		if (frozen.turnsLeft <= 0) {
			var square = board[frozen.row][frozen.col];
			// Unfreeze if the piece is still there and marked as frozen
			if (square && square.piece && square.piece.isFrozenIcy) {
				// Reset tint based on whether it's a Yeti or regular piece
				if (square.piece.isYeti) {
					square.piece.tint = 0xADD8E6; // Yeti tint
				} else {
					square.piece.tint = 0xFFFFFF; // Default tint
				}
				square.piece.isFrozenIcy = false; // Unmark
			}
			icyDayFrozenPieces.splice(i, 1); // Remove from list
		}
	}
}
// Check the game state (check, checkmate, stalemate)
function checkGameState() {
	// Capture the King Rule: Check/Checkmate logic is different
	if (game.gameMode === 'specialGame' && game.specialRule === 'captureKing') {
		// Stalemate can still occur if no legal moves (excluding king capture scenario handled in movePiece)
		var allMovesCtK = getAllPossibleMoves(currentPlayer);
		if (allMovesCtK.length === 0) {
			// Stalemate if no moves and king not captured
			gameState = 'stalemate'; //{eT} // Reuse stalemate code line ID if appropriate
			endGame('Draw by stalemate!');
			return;
		}
		// Check for 50-move rule - REMOVED
		/* 
		if (movesSinceCaptureOrPawn >= 50) { //{gH} // Keep line ID comment for history
			gameState = 'stalemate'; 
			endGame('Draw by 50-move rule!'); 
			return; 
		} 
		*/ 
		// Check for insufficient material still applies
		if (hasInsufficientMaterial()) {
			gameState = 'stalemate';
			endGame('Draw by insufficient material!');
			return;
		}
		// No check state in this mode
		gameState = 'playing'; //{eV} // Reuse playing state code line ID
		return; // Skip standard check/checkmate logic
	}
	// GOAT-ed Challenge: Check for survival win
	if (game.gameMode === 'specialGame' && game.specialRule === 'goatedChallenge') {
		if (goatedTurnCounter >= 25) {
			gameState = 'checkmate'; // Use checkmate state to signify player win
			endGame('Survived 25 turns! You win!');
			return;
		}
		// Check if AI king is captured (AI loses) - should not happen if AI plays normally
		var blackKing = findKing('black');
		if (!blackKing) {
			gameState = 'checkmate';
			endGame('AI King lost! You win!');
			return;
		}
		// Check if player king is captured (Player loses)
		var whiteKing = findKing('white');
		if (!whiteKing) {
			gameState = 'checkmate'; // Player lost
			endGame('Your King was captured! AI wins!');
			return;
		}
	}
	// Dragon Boss: Check if Dragon is captured (Player wins)
	if (game.gameMode === 'specialGame' && game.specialRule === 'dragonBoss') {
		var dragonFound = false;
		for (var r = 0; r < BOARD_SIZE_Y; r++) {
			for (var c = BOARD_START_COL; c <= BOARD_END_COL; c++) {
				if (board[r][c] && board[r][c].piece && board[r][c].piece.isDragon) {
					dragonFound = true;
					break;
				}
			}
			if (dragonFound) {
				break;
			}
		}
		if (!dragonFound) {
			gameState = 'checkmate'; // Player wins
			endGame('Dragon Captured! You win!');
			return;
		}
		// Check if player king is captured (Player loses)
		var whiteKingDragon = findKing('white');
		if (!whiteKingDragon) {
			gameState = 'checkmate'; // Player lost
			endGame('Your King was captured! Dragon wins!');
			return;
		}
	}
	// --- Standard Check/Checkmate/Stalemate Logic ---
	// Check if the current player's king is in check
	var inCheck = isKingInCheck(currentPlayer);
	// Get all possible moves for the current player
	var allMoves = getAllPossibleMoves(currentPlayer);
	// Check for 50-move rule - REMOVED
	/* 
	if (movesSinceCaptureOrPawn >= 50) { //{hh} // Keep line ID comment for history
		gameState = 'stalemate'; 
		endGame('Draw by 50-move rule!'); 
		return; 
	} 
	*/ 
	// Check for insufficient material
	if (hasInsufficientMaterial()) {
		gameState = 'stalemate';
		endGame('Draw by insufficient material!');
		return;
	}
	// Check crazy mode king only frozen situation
	if (game.gameMode === 'crazy' && isKingOnlyFrozen()) {
		gameState = 'stalemate';
		endGame('Draw! King is frozen and alone.');
		return;
	}
	if (inCheck) {
		if (allMoves.length === 0) {
			// Checkmate
			gameState = 'checkmate';
			endGame('Checkmate! ' + otherPlayer(currentPlayer) + ' wins!');
		} else {
			// Check
			gameState = 'check';
			LK.getSound('check').play();
		}
	} else if (allMoves.length === 0) {
		// Stalemate
		gameState = 'stalemate';
		endGame('Draw by stalemate!');
	} else {
		gameState = 'playing';
	}
}
// Get all possible moves for a player
function getAllPossibleMoves(color) {
	var allMoves = [];
	for (var row = 0; row < BOARD_SIZE; row++) {
		for (var col = 0; col < BOARD_SIZE; col++) {
			var square = board[row][col];
			if (square.piece && square.piece.color === color) {
				var moves = calculateValidMoves(square);
				for (var i = 0; i < moves.length; i++) {
					allMoves.push({
						fromRow: row,
						fromCol: col,
						toRow: moves[i].row,
						toCol: moves[i].col
					});
				}
			}
		}
	}
	return allMoves;
}
// Check for insufficient material (K vs K, K vs KB, K vs KN)
function hasInsufficientMaterial() {
	var pieces = {
		white: {
			count: 0,
			bishop: 0,
			knight: 0
		},
		black: {
			count: 0,
			bishop: 0,
			knight: 0
		}
	};
	// Count all pieces on the board
	for (var row = 0; row < BOARD_SIZE; row++) {
		for (var col = 0; col < BOARD_SIZE; col++) {
			var square = board[row][col];
			if (square.piece) {
				var piece = square.piece;
				pieces[piece.color].count++;
				if (piece.type === 'bishop') {
					pieces[piece.color].bishop++;
				} else if (piece.type === 'knight') {
					pieces[piece.color].knight++;
				} else if (piece.type !== 'king') {
					// If there's any other piece (pawn, rook, queen), material is sufficient
					if (piece.type === 'pawn' || piece.type === 'rook' || piece.type === 'queen') {
						return false;
					}
				}
			}
		}
	}
	// K vs K
	if (pieces.white.count === 1 && pieces.black.count === 1) {
		return true;
	}
	// K vs KB or K vs KN
	if (pieces.white.count === 1 && pieces.black.count === 2 && (pieces.black.bishop === 1 || pieces.black.knight === 1) || pieces.black.count === 1 && pieces.white.count === 2 && (pieces.white.bishop === 1 || pieces.white.knight === 1)) {
		return true;
	}
	return false;
}
// Check for king-only frozen situation in crazy mode
function isKingOnlyFrozen() {
	if (game.gameMode !== 'crazy') {
		return false;
	}
	var whiteCount = 0;
	var whiteKingRow = -1;
	var whiteKingCol = -1;
	var blackCount = 0;
	// Count pieces and find white king
	for (var row = 0; row < BOARD_SIZE; row++) {
		for (var col = 0; col < BOARD_SIZE; col++) {
			var square = board[row][col];
			if (square.piece) {
				if (square.piece.color === 'white') {
					whiteCount++;
					if (square.piece.type === 'king') {
						whiteKingRow = row;
						whiteKingCol = col;
					}
				} else {
					blackCount++;
				}
			}
		}
	}
	// If white only has the king and it's frozen
	return whiteCount === 1 && whiteKingRow !== -1 && crazyAbilities.isPieceFrozen(whiteKingRow, whiteKingCol);
}
// End the game
function endGame(message) {
	var gameOverText = new Text2(message, {
		size: 60,
		fill: 0xFFFFFF
	});
	gameOverText.anchor.set(0.5, 0.5);
	gameOverText.x = 2048 / 2;
	gameOverText.y = 200;
	game.addChild(gameOverText);
	// Update score based on winner
	if (gameState === 'checkmate') {
		if (currentPlayer === 'black') {
			// White wins
			LK.setScore(100);
		} else {
			// Black wins (AI wins)
			LK.setScore(0);
		}
	} else {
		// Draw
		LK.setScore(50);
	}
	// Show game over after a short delay
	LK.setTimeout(function () {
		LK.showGameOver();
	}, 3000);
}
// Make an AI move
function makeAIMove() {
	if (gameState === 'checkmate' || gameState === 'stalemate') {
		aiThinking = false;
		return;
	}
	// Get all possible moves for the AI
	var possibleMoves = getAllPossibleMoves('black');
	if (possibleMoves.length === 0) {
		aiThinking = false;
		return;
	}
	// Simple AI: pick a random move
	var randomMove = possibleMoves[Math.floor(Math.random() * possibleMoves.length)];
	// Make the move
	var fromSquare = board[randomMove.fromRow][randomMove.fromCol];
	var toSquare = board[randomMove.toRow][randomMove.toCol];
	// Highlight the selected square
	fromSquare.highlight('selected');
	// Wait a bit before making the move
	LK.setTimeout(function () {
		// Move the piece
		movePiece(fromSquare, toSquare);
		// Clear highlights
		clearHighlights();
		// Check if the move ended the game (e.g., king capture)
		// gameState might have been updated in movePiece
		if (gameState === 'checkmate' || gameState === 'stalemate') {
			aiThinking = false;
			return; // Exit if movePiece ended the game
		}
		// Use crazy ability ONLY in crazy mode
		if (game.gameMode === 'crazy' && Math.random() < crazyAbilityChance) {
			// Use ability after a short delay
			LK.setTimeout(function () {
				crazyAbilities.useRandomAbility();
				// Note: Ability might change game state, but we check again after switch anyway
			}, 500);
		}
		// Switch back to player
		switchPlayer(); //{iS} // currentPlayer is now 'white'
		// Check for check/checkmate/stalemate for the player whose turn it now is
		checkGameState(); //{iR} // Checks state for 'white'
		// If game ended after check
		if (gameState === 'checkmate' || gameState === 'stalemate') {
			aiThinking = false;
			return;
		}
		// Update crazy mode frozen and goatified pieces ONLY in crazy mode
		if (game.gameMode === 'crazy') {
			crazyAbilities.updateFrozenPieces();
			crazyAbilities.updateGoatifiedPieces();
		}
		// AI turn is over
		aiThinking = false;
	}, 500);
}
// Create score display
var scoreTxt = new Text2('Crazy Chess', {
	size: 60,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Create turn display
var turnText = new Text2('Your Turn', {
	size: 40,
	fill: 0xFFFFFF
});
turnText.anchor.set(0.5, 0);
turnText.y = 70;
LK.gui.top.addChild(turnText);
// Game update function
game.update = function () {
	// If in title screen, update title screen
	if (gameState === 'title' && titleScreen) {
		titleScreen.update();
		return;
	}
	// If in game mode selection screen, update that screen
	if (gameState === 'modeSelect' && gameModeScreen) {
		gameModeScreen.update();
		return;
	}
	// If in bot selection screen, update that screen
	if (gameState === 'botSelect' && botSelectionScreen) {
		botSelectionScreen.update();
		return;
	}
	// If in daily challenge screen, update that screen
	if (gameState === 'dailyChallenge' && dailyChallengeScreen) {
		dailyChallengeScreen.update();
		return; // Stop further updates if in this screen
	}
	// Fog of War visual update (placeholder)
	if (game.gameMode === 'specialGame' && game.specialRule === 'fogOfWar') {
		// updateFogOfWar(); // TODO: Implement visual fog logic
	}
	// Update UI Text for Special Modes
	if (game.gameMode === 'specialGame') {
		if (game.specialRule === 'goatedChallenge') {
			scoreTxt.setText('GOAT-ed Challenge');
			turnText.setText('Turn: ' + goatedTurnCounter + '/25');
			if (gameState === 'checkmate' && goatedTurnCounter >= 25) {
				turnText.setText('You Win!');
			} else if (gameState === 'checkmate') {
				turnText.setText('AI Wins!'); // Player lost before 25 turns
			} else if (aiThinking) {
				turnText.setText('AI Thinking...');
			}
			// Don't overwrite win/loss text immediately
			return; // Skip default turn text logic for this mode if not thinking
		} else if (game.specialRule === 'dragonBoss') {
			scoreTxt.setText('Dragon Boss');
			if (gameState === 'checkmate') {
				var whiteKingDragon = findKing('white');
				turnText.setText(whiteKingDragon ? 'You Win!' : 'Dragon Wins!');
			} else if (aiThinking) {
				turnText.setText('Dragon Thinking...');
			} else {
				turnText.setText('Your Turn');
			}
			return; // Skip default turn text logic
		} else if (game.specialRule === 'icyDay') {
			scoreTxt.setText('Icy Day');
			// Use default turn text logic below
		} else if (game.specialRule === 'transformoFest') {
			scoreTxt.setText('Transformo-fest');
			// Use default turn text logic below
		}
		// Add other special rule title updates here if needed
	}
	// Update turn text (Default logic, handles standard game and some special modes)
	if (gameState === 'checkmate') {
		// Capture the King uses 'checkmate' state for win, adjust text
		if (game.gameMode === 'specialGame' && game.specialRule === 'captureKing') {
			// Winner determined in endGame, turnText might be showing winner already
		} else if (currentPlayer === 'black') {
			turnText.setText('You Win!');
		} else {
			turnText.setText('AI Wins!');
		}
	} else if (gameState === 'stalemate') {
		turnText.setText('Draw!');
	} else if (aiThinking) {
		turnText.setText('AI Thinking...');
	} else {
		turnText.setText(currentPlayer === 'white' ? 'Your Turn' : 'AI Turn');
	}
};
// Method to show the game mode selection screen
game.showGameModeScreen = function () {
	// Remove title screen if it exists
	if (titleScreen) {
		game.removeChild(titleScreen);
		titleScreen = null;
	}
	// Remove game mode screen if it already exists
	if (gameModeScreen) {
		game.removeChild(gameModeScreen);
		gameModeScreen = null; // Clear reference
	}
	// Remove bot selection screen if it exists
	if (botSelectionScreen) {
		game.removeChild(botSelectionScreen);
		botSelectionScreen = null;
	}
	// Remove daily challenge screen if it exists
	if (dailyChallengeScreen) {
		game.removeChild(dailyChallengeScreen);
		dailyChallengeScreen = null;
	}
	// Create and add game mode screen
	gameModeScreen = new GameModeScreen();
	gameModeScreen.x = 2048 / 2;
	gameModeScreen.y = 2732 / 2;
	game.addChild(gameModeScreen);
	// Update game state
	gameState = 'modeSelect';
};
// Method to show the title screen
// Method to show the bot selection screen
game.showBotSelectionScreen = function () {
	// Remove game mode screen if it exists
	if (gameModeScreen) {
		game.removeChild(gameModeScreen);
		gameModeScreen = null;
	}
	// Remove title screen just in case (shouldn't happen in normal flow)
	if (titleScreen) {
		game.removeChild(titleScreen);
		titleScreen = null;
	}
	// Remove existing bot selection screen if present
	if (botSelectionScreen) {
		game.removeChild(botSelectionScreen);
		botSelectionScreen = null;
	}
	// Create and add bot selection screen
	botSelectionScreen = new BotSelectionScreen();
	botSelectionScreen.x = 2048 / 2;
	botSelectionScreen.y = 2732 / 2;
	game.addChild(botSelectionScreen);
	// Update game state
	gameState = 'botSelect';
};
// Method to show the daily challenge screen
game.showDailyChallengeScreen = function () {
	// Remove other screens
	if (titleScreen) {
		game.removeChild(titleScreen);
		titleScreen = null;
	}
	if (gameModeScreen) {
		game.removeChild(gameModeScreen);
		gameModeScreen = null;
	}
	if (botSelectionScreen) {
		game.removeChild(botSelectionScreen);
		botSelectionScreen = null;
	}
	if (dailyChallengeScreen) {
		game.removeChild(dailyChallengeScreen);
		dailyChallengeScreen = null;
	}
	// Create and add daily challenge screen
	dailyChallengeScreen = new DailyChallengeScreen();
	dailyChallengeScreen.x = 2048 / 2;
	dailyChallengeScreen.y = 2732 / 2;
	game.addChild(dailyChallengeScreen);
	// Update game state
	gameState = 'dailyChallenge';
};
game.showTitleScreen = function () {
	// Remove game mode screen if it exists
	if (gameModeScreen) {
		game.removeChild(gameModeScreen);
		gameModeScreen = null;
	}
	// Remove bot selection screen if it exists
	if (botSelectionScreen) {
		game.removeChild(botSelectionScreen);
		botSelectionScreen = null;
	}
	// Remove daily challenge screen if it exists
	if (dailyChallengeScreen) {
		game.removeChild(dailyChallengeScreen);
		dailyChallengeScreen = null;
	}
	// Create and add title screen
	titleScreen = new TitleScreen();
	titleScreen.x = 2048 / 2;
	titleScreen.y = 2732 / 2;
	game.addChild(titleScreen);
	// Update game state
	gameState = 'title';
};
// Method to start the game from mode selection screen
game.startGame = function () {
	// Remove game mode screen if it exists
	if (gameModeScreen) {
		game.removeChild(gameModeScreen);
		gameModeScreen = null;
	}
	// Remove bot selection screen if it exists
	if (botSelectionScreen) {
		game.removeChild(botSelectionScreen);
		botSelectionScreen = null;
	}
	// Remove daily challenge screen if it exists (shouldn't be possible to start game from here, but for safety)
	if (dailyChallengeScreen) {
		game.removeChild(dailyChallengeScreen);
		dailyChallengeScreen = null;
	}
	// Change state based on mode
	if (game.gameMode === 'specialGame') {
		gameState = 'specialGame'; // Or keep as 'playing' and rely on game.specialRule
		scoreTxt.setText('Daily Challenge - ' + selectedBot.toUpperCase()); // Or show special rule name?
	} else {
		gameState = 'playing';
		// Update game title based on selected mode
		scoreTxt.setText('Crazy Chess - ' + game.gameMode.toUpperCase());
	}
	// Initialize the chess board
	initializeBoard();
	// Reset special mode variables
	goatedTurnCounter = 0;
	icyDayFrozenPieces = [];
	yetiPawns = [];
	// Show the score and turn text
	scoreTxt.visible = true;
	turnText.visible = true;
};
// Show title screen first
titleScreen = new TitleScreen();
titleScreen.x = 2048 / 2;
titleScreen.y = 2732 / 2;
game.addChild(titleScreen);
// Hide score and turn text initially
scoreTxt.visible = false;
turnText.visible = false;
;

===================================================================
--- original.js
+++ change.js
@@ -1442,9 +1442,9 @@
 // Clear highlights from all squares
 function clearHighlights() {
 	for (var row = 0; row < BOARD_SIZE; row++) {
 		for (var col = 0; col < BOARD_SIZE; col++) {
-			if (isBoardPositionValid(row, col)) {
+			if (board[row][col]) {
 				board[row][col].highlight();
 			}
 		}
 	}
@@ -1499,12 +1499,8 @@
 	}
 	// Filter out moves that would put the king in check
 	return filterCheckMoves(square, moves);
 }
-// Function to check if a board row/col exists
-function isBoardPositionValid(row, col) {
-	return board && row >= 0 && row < board.length && board[row] && col >= 0 && col < board[row].length && board[row][col] !== null;
-}
 // Calculate valid moves for a pawn
 function calculatePawnMoves(row, col, piece, moves) {
 	var direction = piece.color === 'white' ? -1 : 1;
 	// Move forward one square
@@ -1842,8 +1838,12 @@
 	}
 	// Standard check filtering
 	for (var i = 0; i < moves.length; i++) {
 		var move = moves[i];
+		// Make sure the move exists and has valid row/col properties
+		if (!move || !board[move.row] || !board[move.row][move.col]) {
+			continue;
+		}
 		// Simulate the move
 		var originalPiece = board[move.row][move.col].piece;
 		board[move.row][move.col].piece = piece;
 		board[fromSquare.row][fromSquare.col].piece = null;