[Event "?"] [Site "?"] [Date "2025.07.04"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "rn1qkb1r/p4ppp/b1p1pn2/1p4B1/P1pPP3/2N2N2/1P3PPP/R2QKB1R b KQkq - 0 1"] [GameDuration "00:00:04"] [GameEndTime "2025-07-04T06:28:48.804 UTC"] [GameStartTime "2025-07-04T06:28:43.805 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.08+0.04"] 1... b4 {+0.25 7/7 102 0, White makes an illegal move: 0000} 0-1