Arrow keys to slide empty square ends up in bottom right (looks like this↓) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
I've seen sliding puzzles like this before online, but I coded it myself. Thinking of working on one where you choose the dimensions of the puzzle. My fastest time is 1:10.