[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-dev"] [Black "Integral-base"] [Result "0-1"] [FEN "r3kb1r/ppp1pppp/2nq1n2/5b2/8/1PNP4/PBQ1PPPP/R3KBNR b KQkq - 0 1"] [GameDuration "00:00:02"] [GameEndTime "2025-05-19T02:50:50.782 UTC"] [GameStartTime "2025-05-19T02:50:48.406 UTC"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.84+0.1"] 1... e5 {+1.21 17/31 1098 370422} 2. Rc1 {White makes an illegal move: b5b4} 0-1