[Event "?"] [Site "?"] [Date "2025.07.04"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "rnb1k2r/pp1p1ppp/2pb1q1n/8/2B1Pp2/2NP1N2/PPPB2PP/R2QK2R b KQkq - 0 1"] [GameDuration "00:00:05"] [GameEndTime "2025-07-04T10:13:19.180 UTC"] [GameStartTime "2025-07-04T10:13:13.806 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.04+0.04"] 1... b5 {-0.20 8/8 503 0, White makes an illegal move: 0000} 0-1