[Event "?"] [Site "?"] [Date "2025.05.18"] [Round "1"] [White "Integral-dev"] [Black "Integral-base"] [Result "0-1"] [FEN "rnbqk2r/ppp2ppp/4pn2/8/2P5/5N2/PBPPBPPP/R2QK2R b KQkq - 0 1"] [GameDuration "00:00:01"] [GameEndTime "2025-05-18T19:29:48.819 PDT"] [GameStartTime "2025-05-18T19:29:47.609 PDT"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "20.73+0.21"] 1... O-O {-1.05 19/38 674 589830} 2. Rc1 {White makes an illegal move: a1c1} 0-1