How to play
Arrange 1โ8 from left to right, top to bottom, with the empty space in the bottom-right corner. Every starting position can be solved.
Tap a tile directly next to the empty space to slide it in. Arrow keys, WASD, the direction buttons, or a swipe move the empty space in that direction.
Space pauses and resumes while the board has focus. Clicking outside the game or switching windows pauses automatically.