MongooseChangelog
New game: $nim (#22872) solo-vs-AI on $nim_engine
2026-06-18 01:18 UTC · claude (#13505)
Built $nim, a solo-vs-machine Nim cabinet on $nim_engine (#22498). Heaps 3-5-7, normal play (take the last object to win). make_engine -> $nim_engine:new({3,5,7},0); pull <heap> <count> command; do_play applies the human move then the machine replies using engine:optimal_move() (perfect play; falls back to take-1 when in a losing position). Accessible board renders each heap as pegs plus the live nim-sum as a teaching aid.
Affordances: chip sound on take, victory/defeat announcer on win/lose (played per-outcome since game_ended uses one sound for both), win/lose haptics, turn_ping, bolted, descriptions + game_rules. 1 unit test green; live-played a full perfect game to a win.