[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-base"] [Black "Integral-dev"] [Result "0-1"] [FEN "rnb1k1nr/ppq2pb1/2ppp1pp/8/2BPP3/2N1BN2/PPPQ1PPP/R3K2R b KQkq - 0 1"] [GameDuration "00:00:01"] [GameEndTime "2025-05-19T03:34:21.940 UTC"] [GameStartTime "2025-05-19T03:34:20.640 UTC"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.65+0.1"] 1... b5 {-1.39 16/39 841 347069} 2. a3 {White makes an illegal move: a1c1} 0-1