Play vs AI — Powered by Stockfish via chess-api.com 4 Difficulty Levels — From Easy to Max Choose Your Side — Play as White, Black, or Random at the game setup screen Disable AI — Play both sides manually by toggling the AI off Move History — Full SAN move list with click-to-navigate history browsing Undo / Redo — Step back and forward through moves FEN Import / Export — Load any position via FEN string or copy the current position Piece Promotion — Interactive promotion modal when a pawn reaches the last rank Board Flip — Flip the board to play from either side's perspective Resign — Concede