[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-base"] [Black "Integral-dev"] [Result "0-1"] [FEN "r2qkbnr/1b1n1ppp/p3p3/1pppP3/3P1P2/2P1BN2/PP1N2PP/R2QKB1R b KQkq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-05-19T03:06:24.055 UTC"] [GameStartTime "2025-05-19T03:06:23.730 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.29+0.09"] 1... c4 {-1.05 15/29 308 176160, White makes an illegal move: c6c5} 0-1