[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-base"] [Black "Integral-dev"] [Result "0-1"] [FEN "rnbq1rk1/ppp1npbp/3pp1p1/4P3/5P2/2NPBN2/PPP3PP/R2QKB1R b KQ - 0 1"] [GameDuration "00:00:01"] [GameEndTime "2025-05-19T03:18:11.534 UTC"] [GameStartTime "2025-05-19T03:18:09.895 UTC"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.12+0.09"] 1... c5 {+1.31 16/30 785 335417} 2. Rc1 {White makes an illegal move: a1c1} 0-1