[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-base"] [Black "Integral-dev"] [Result "0-1"] [FEN "r1bqkbnr/2p2pp1/p1n1p2p/1p1p4/3P4/2PBPN2/PP3PPP/RNBQR1K1 b kq - 0 1"] [GameDuration "00:00:01"] [GameEndTime "2025-05-19T03:18:15.386 UTC"] [GameStartTime "2025-05-19T03:18:14.342 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.12+0.09"] 1... Nf6 {-1.46 19/37 1017 471315, White makes an illegal move: a1c1} 0-1