[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-dev"] [Black "Integral-base"] [Result "0-1"] [FEN "rnbqk1nr/1p2ppbp/p2p2p1/2pP2B1/P1B1P3/2N5/1PP2PPP/R2QK1NR b KQkq - 0 1"] [GameDuration "00:00:02"] [GameEndTime "2025-05-19T02:54:57.811 UTC"] [GameStartTime "2025-05-19T02:54:55.069 UTC"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.21+0.09"] 1... Nf6 {-1.20 19/35 1716 638676} 2. Rc1 {White makes an illegal move: a1c1} 0-1