The classic sliding block puzzle. The 15-puzzle consists of a 4-by-4 grid with tile numbered $1$ to $15$ placed in the grid. The object of this puzzle is to randomly arrange the tiles on the grid, and ...

Then move tiles around in that loop. Sometimes you will have to move two blocks side-by-side in the loop. Each time you reload the page, the puzzle starts with a new random display. Some ...

The Giiker Super Slide Puzzle just hit its lowest price in years, and since it includes over 500 puzzles, it'll keep you ...