[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-base"] [Black "Integral-dev"] [Result "0-1"] [FEN "r1b1kbnr/pppqp1pp/8/3Pp3/2P5/2N5/PP3PPP/R2QKBNR b KQkq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-05-19T03:33:53.350 UTC"] [GameStartTime "2025-05-19T03:33:52.648 UTC"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.4+0.09"] 1... Nf6 {-1.31 15/24 408 191473} 2. a3 {White makes an illegal move: a2a3} 0-1