===================================================================
--- original.js
+++ change.js
@@ -85,8 +85,13 @@
 	self.setValue = function (newValue, depth) {
 		LK.setTimeout(function () {
 			// Enclose operation in a timeout
 			log("setValue to ", newValue, depth);
+			if (self.value > 0 && newValue === 0) {
+				puzzleManager.activeTileCount--; // Decrement active tile count
+			} else if (self.value === 0 && newValue > 0) {
+				puzzleManager.activeTileCount++; // Increment active tile count
+			}
 			self.value = newValue;
 			if (self.value === 0) {
 				self.valueTextShadow.setText("");
 				self.valueText.setText("");
@@ -197,8 +202,9 @@
 function PuzzleManager(game) {
 	var self = this;
 	// Properties
 	self.game = game;
+	self.activeTileCount = 0; // Initialize active tile count
 	self.levelBoardOffsetX = 0; // Initialize levelBoardOffsetX
 	self.levelBoardOffsetY = 0; // Initialize levelBoardOffsetY
 	self.currentLevel = 1;
 	self.board = [];
@@ -225,8 +231,9 @@
 		self.createOperations();
 	};
 	self.createBoard = function () {
 		self.board = [];
+		self.activeTileCount = 0; // Reset active tile count
 		// Update levelBoardOffsets depending on level 
 		self.levelBoardOffsetX = 300;
 		self.levelBoardOffsetY = 150;
 		for (var row = 0; row < self.levelData.tiles.length; row++) {
@@ -235,8 +242,9 @@
 				if (value !== "") {
 					var tile = new HexTile(value, col, row, self.levelData, self.levelBoardOffsetX, self.levelBoardOffsetY);
 					self.board.push(tile);
 					boardContainer.addChild(tile);
+					self.activeTileCount++; // Increment active tile count
 				}
 			}
 		}
 	};
@@ -322,8 +330,9 @@
 		}
 		log("Finished propagateOperation");
 	};
 	self.checkWinCondition = function () {
+		log("checkWinCondition...");
 		var _iterator2 = _createForOfIteratorHelper(self.board),
 			_step2;
 		try {
 			for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
@@ -341,8 +350,9 @@
 		return true;
 	};
 	// Animation Functions
 	self.playVictoryAnimation = function () {
+		log("playVictoryAnimation...");
 		// Play level complete animation
 	};
 }
 /***********************************************************************************************/