===================================================================
--- original.js
+++ change.js
@@ -4,9 +4,9 @@
 //<Assets used in the game will automatically appear here>
 // PuzzlePiece class to represent each piece of the puzzle
 var PuzzlePiece = Container.expand(function () {
 	var self = Container.call(this);
-	self.assetId = 'piece' + (Math.floor(Math.random() * 20) + 1);
+	self.assetId = 'piece' + (Math.floor(Math.random() * 10) + 1);
 	var pieceGraphics = self.attachAsset(self.assetId, {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
@@ -88,9 +88,9 @@
 		return piece.destroy();
 	});
 	pieces = [];
 	// Create new pieces for the current level
-	for (var i = 0; i < 20; i++) {
+	for (var i = 0; i < 10; i++) {
 		var piece = new PuzzlePiece();
 		piece.x = Math.random() * 2048;
 		piece.y = Math.random() * 2732;
 		piece.setCorrectPosition(100 + i * 150, 100 + i * 150);