[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-base"] [Black "Integral-dev"] [Result "0-1"] [FEN "r1bq1rk1/ppp1npbp/2np2p1/4p3/4P3/1PN2NP1/PBPP1PBP/1R1QK2R b K - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-05-19T03:11:16.480 UTC"] [GameStartTime "2025-05-19T03:11:15.850 UTC"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.32+0.09"] 1... f5 {+0.50 17/32 621 445949} 2. a3 {White makes an illegal move: a2a3} 0-1