[Event "?"] [Site "?"] [Date "2025.05.19"] [Round "1"] [White "Integral-base"] [Black "Integral-dev"] [Result "0-1"] [FEN "rnb1kb1r/ppp2ppp/5n2/8/8/4NN2/PPP1PPPP/R1B1KB1R b KQkq - 0 1"] [GameDuration "00:00:01"] [GameEndTime "2025-05-19T02:52:42.731 UTC"] [GameStartTime "2025-05-19T02:52:41.417 UTC"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "9.21+0.09"] 1... Nc6 {-1.80 17/28 620 285120} 2. b3 {White makes an illegal move: a1c1} 0-1