[Event "?"] [Site "?"] [Date "2025.07.04"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "r1bqk1nr/pp2ppbp/2np2p1/2p2P2/P1B1P3/5N2/1PPP2PP/RNBQK2R b KQkq - 0 1"] [GameDuration "00:00:04"] [GameEndTime "2025-07-04T05:09:40.804 UTC"] [GameStartTime "2025-07-04T05:09:35.806 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.019+0.04"] 1... gxf5 {+0.85 9/9 124 0, White makes an illegal move: 0000} 0-1