[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-dev"] [Black "Integral-base"] [Result "0-1"] [FEN "rnbqk2r/ppp2ppp/5n2/3p4/5P2/5N2/PPP1PP1P/RN1QKB1R b KQkq - 0 1"] [GameDuration "00:00:01"] [GameEndTime "2025-05-19T02:52:41.856 UTC"] [GameStartTime "2025-05-19T02:52:39.938 UTC"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.21+0.09"] 1... c5 {+1.34 21/38 1315 868338} 2. b3 {White makes an illegal move: b2b3} 0-1