[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-base"] [Black "Integral-dev"] [Result "0-1"] [FEN "r1bqkb1r/pp1p1ppp/2n1pn2/8/1pPP4/4PN2/P2N1PPP/R1BQKB1R b KQkq - 0 1"] [GameDuration "00:00:01"] [GameEndTime "2025-05-19T02:54:21.272 UTC"] [GameStartTime "2025-05-19T02:54:19.697 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.21+0.09"] 1... d5 {+1.56 20/33 1261 643308, White makes an illegal move: a1c1} 0-1