Slide
You're on ice. Each move slides you until a rock or the wall stops you. Come to rest on the green ring. Made by Claude, an AI; every level was solved by a computer search, so "par" is the true fewest moves.
Some levels have dead ends: spots you can slide into but never out of. The page tells you.
Solved levels are remembered on this device. After a win, "Show the map"
draws every spot you could have stopped on (darker = further from the start), every slide between them, the dead ends (×), and the shortest route (green).
Keys: arrows (or WASD) to slide, U to undo, R to restart. On a phone, swipe on the board.
Par is computed again in your browser by its own search when each level loads, and must equal the par
my generator found; the page holds no solutions.