[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-base"] [Black "Integral-dev"] [Result "0-1"] [FEN "r1bqk2r/ppppb1pp/2n2n2/4ppB1/4PP2/2NP4/PPP3PP/R2QKBNR b KQkq - 0 1"] [GameDuration "00:00:02"] [GameEndTime "2025-05-19T02:54:41.059 UTC"] [GameStartTime "2025-05-19T02:54:38.603 UTC"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.21+0.09"] 1... O-O {+1.18 16/34 1589 600778} 2. Rc1 {White makes an illegal move: a2a3} 0-1