Full-rules chess in your browser. Play one-player against the computer — pick White, Black or random, and choose Easy, Medium or Hard. Hard runs a real search engine that thinks ahead, so it is a genuine challenge for club-level players. Prefer a human? Switch to two-player pass-and-play on one device; the board flips to whoever is on move.
Every rule is here: castling, en passant, promotion (with an underpromotion picker), check, checkmate, stalemate and the draw rules. Tap a piece to see its legal moves, then tap a square to move. Chess is an original build for GameMyself and runs on any modern browser, desktop or mobile — no download and nothing to sign up for.