15 Puzzle - Fifteen Game Chall

15 puzzle is a simple sliding game. Your goal is to arrange tiles in ascending order (left-to-right, top-to-bottom) by moving puzzle pieces. It's a good way to train your brain, memory, and attention a little.
Challenge your logic and brainpower, have fun and enjoy it!

FEATURES
• 100% solvable combinations;
• Simple and convenient interface;
• Five game levels (from 3x3, 4x4, 5x5, 6x6 and 7x7);
• Game timer and saving the best result;
• Simple & intuitive slide puzzle gameplay
• Beautiful animation and tiles sliding;
• Optimized for smartphones and tablets.