[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-dev"] [Black "Integral-base"] [Result "0-1"] [FEN "rnbqkb1r/pp4pp/3ppn2/2p5/2P5/1P3N2/PB3PPP/RN1QKB1R b KQkq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-05-19T02:52:42.515 UTC"] [GameStartTime "2025-05-19T02:52:41.861 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.21+0.09"] 1... Nc6 {+1.52 16/35 628 281725, White makes an illegal move: b2b3} 0-1