[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-base"] [Black "Integral-dev"] [Result "0-1"] [FEN "r1bq1rk1/pppn1ppp/3bpn2/8/8/2NPBQ2/PPP2PPP/R3KBNR b KQ - 0 1"] [GameDuration "00:00:02"] [GameEndTime "2025-05-19T03:11:40.373 UTC"] [GameStartTime "2025-05-19T03:11:38.304 UTC"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.32+0.09"] 1... c5 {+1.44 18/28 1782 903843} 2. Rc1 {White makes an illegal move: c2c3} 0-1