[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-base"] [Black "Integral-dev"] [Result "0-1"] [FEN "rnbqkb1r/pp4pp/3ppn2/2p5/2P5/1P3N2/PB3PPP/RN1QKB1R b KQkq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-05-19T02:52:43.598 UTC"] [GameStartTime "2025-05-19T02:52:42.713 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.21+0.09"] 1... Nc6 {+1.47 15/31 576 147022, White makes an illegal move: a1c1} 0-1