Coral Turn · Reversi Cove
Coral Turn: Reversi Cove is a complete offline Reversi game. Place coral discs to bracket opposing pearl lines in eight directions; all trapped lines flip. Legal move dots, optional coordinate buttons, friendly and thoughtful local AI, same-device two-player mode, automatic pass, end scoring, corner practice, suggestions, undo, keyboard/touch, replay and local match record. Adapted source https://github.com/nstringham/othello-web-app (MIT,13 stars observed Nov10 2026, maintained Nov8 2026; Sep13 source refactor, head6f647011ad83). Original Rust rules/alpha-beta faithfully ported to plain JavaScript and verified against compiled original across60 positions/488 moves/both search depths. New UI and four original GPT-painted board/disc/table materials. Metadata tags: github-source, game. All paths relative and assets local. No WASM,backend,database,external authentication,runtime assets,popups or downloads. No model or tool calls needed.
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