[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-base"] [Black "Integral-dev"] [Result "0-1"] [FEN "rnbq1rk1/pppp1ppp/3b4/7n/3P1P2/2P2N2/PP2B1PP/RNBQK2R b KQ - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-05-19T02:50:44.231 UTC"] [GameStartTime "2025-05-19T02:50:43.365 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.84+0.1"] 1... Nxf4 {+1.85 17/33 487 149855, White makes an illegal move: a1c1} 0-1