[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-base"] [Black "Integral-dev"] [Result "0-1"] [FEN "rn1qk1nr/pppb1ppp/3bp3/8/8/2N4N/PPPP1PPP/R1BQKB1R b KQkq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-05-19T02:51:37.402 UTC"] [GameStartTime "2025-05-19T02:51:36.683 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.84+0.1"] 1... Nc6 {+1.10 15/30 595 249903, White makes an illegal move: b5b4} 0-1