15Puzzle

The 15-puzzle (also called Gem Puzzle, Boss Puzzle, Game of Fifteen, Mystic Square and many others) is a sliding puzzle that consists of a frame of numbered square tiles in random order with one tile missing. The object of the puzzle is to place the tiles in order by making sliding moves that use the empty space. Last two tiles (14 and 15) may be placed in reverse order (15, 14).

This is my first project for android development education. Implemented features:
- Moves counter
- Timer counter
- Best moves and best time counter
- Device rotation is handled by sending bundle
- Tiles palette change
- Splash screen at startup

Source code:
https://github.com/dmitriy1morozov/15Puzzle