[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-base"] [Black "Integral-dev"] [Result "0-1"] [FEN "r1bq1rk1/1pppbppp/p4n2/n3N3/B3P3/2PP4/PP3PPP/RNBQK2R b KQ - 0 1"] [GameDuration "00:00:01"] [GameEndTime "2025-05-19T02:50:38.287 UTC"] [GameStartTime "2025-05-19T02:50:36.722 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.84+0.1"] 1... c5 {-1.70 18/36 1057 450577, White makes an illegal move: a1c1} 0-1