[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-base"] [Black "Integral-dev"] [Result "0-1"] [FEN "rn1qk2r/ppp2ppp/4pn2/4Nb2/1bPP4/8/PP2BPPP/RNBQ1RK1 b kq - 0 1"] [GameDuration "00:00:01"] [GameEndTime "2025-05-19T03:07:46.629 UTC"] [GameStartTime "2025-05-19T03:07:45.207 UTC"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.29+0.09"] 1... O-O {-0.91 18/32 1248 882256} 2. a3 {White makes an illegal move: a2a3} 0-1