[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-dev"] [Black "Integral-base"] [Result "0-1"] [FEN "rnbqk1nr/ppp2ppp/8/8/2P1P3/8/PP1N1PPP/R2QKBNR b KQkq - 0 1"] [GameDuration "00:00:02"] [GameEndTime "2025-05-19T02:50:05.349 UTC"] [GameStartTime "2025-05-19T02:50:02.618 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.84+0.1"] 1... Nc6 {-1.43 20/38 2259 1321215, White makes an illegal move: b5b4} 0-1