Rayst - Game Developers
The first game of RaystGames.
The puzzle was "invented" by Noyes Palmer Chapman, a postmaster in Canastota, New York, who is said to have shown friends, as early as 1874, a precursor puzzle consisting of 16 numbered blocks that were to be put together in rows of four, each summing to 34.
Special thanx to Ehma for share your musics
to move pieces:
Up, Down, Left, Right
click with left button of mouse on pieces.