[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-base"] [Black "Integral-dev"] [Result "0-1"] [FEN "r1b1k1nr/pp2ppbp/2n3p1/2ppP3/3P4/2P1BN2/Pq1NBPPP/R2QK2R b KQkq - 0 1"] [GameDuration "00:00:02"] [GameEndTime "2025-05-19T03:32:30.410 UTC"] [GameStartTime "2025-05-19T03:32:28.265 UTC"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.4+0.09"] 1... c4 {+0.92 19/41 1939 1058989} 2. Rc1 {White makes an illegal move: c6c5} 0-1