Sliding 24 is a browser game built for short, satisfying sessions - it loads instantly, plays with one thumb, and runs on any mid-range phone. The setup is simple: a 5x5 board with 24 sliding tiles. Nothing to install, no account, no waiting.
Tiles slide into the single empty square, one step at a time. The solve is a rhythm of small loops - rotate a tile into the gap, shuffle the row, lock it, move on. With a 5x5 board with 24 sliding tiles, early rows can be solved almost without thinking; the last row is where runs are won.
It suits anyone with a queue to wait in or a kettle to watch: students between classes, commuters, parents stealing ten quiet minutes. There is no meta-progression to lose and nothing to catch up on - a week away costs you nothing but a little sharpness.