is a classical
, which invented in 1878.
consist of a frame of numbered square tiles in random order with one missing tile.
The object of the puzzle is to place tiles in order(so that the numbers are in numerical order from left to right, top to bottom, with the space at the bottom right) by making sliding moves that use empty space.
Game has frame sizes:
3 х 3 (8 tiles) – for beginners and kids;
4 х 4 (15 tiles) – classical size fifteen puzzle for all ages;
5 х 5 (24 tiles) – for those who like to think;
6 х 6 (35 tiles) – complicated option;
7 х 7 (48 tiles) – difficult option;
8 х 8 (63 tiles) – very difficult option.
Features:
* Difficulty levels (8, 15, 24, 35, 48 and 63 tiles);
* Special mixing algorithm guarantees 100% puzzle solvability;
* Realistic and animated sliding of tiles;
* Timer and moves counter;
* Friendly interface with two colored themes;
* Optimized for phones and tablets.
Game is totally free!