Choose
Pick one of three board sizes.
Engine plate // sliding challenge
Seriously Impossible
Puzzles.
Slide each numbered plate into order. Start with a 3 by 3 tune-up or take on the full 5 by 5 rebuild.
Put every engine plate into number order, with the empty space at the end. Select a tile next to the space to slide it.
Keyboard: use the arrow keys to slide a tile into the empty space.
Puzzle ready. Slide the tiles into number order.
Slide
Select a numbered tile beside the gap.
Solve
Finish in number order with the gap last.