[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-dev"] [Black "Integral-base"] [Result "0-1"] [FEN "r2qkbnr/ppp1p1pp/2n1bp2/8/4p3/2N1N3/PPPP1PPP/R1BQKB1R b KQkq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-05-19T03:31:22.121 UTC"] [GameStartTime "2025-05-19T03:31:21.466 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.4+0.09"] 1... f5 {+1.91 16/32 624 166929, White makes an illegal move: a5a4} 0-1