[Event "?"] [Site "?"] [Date "2025.07.14"] [Round "1"] [White "Helios-base"] [Black "Helios-dev"] [Result "1-0"] [FEN "r2qk2r/pppb1ppp/2np3n/2b1p3/B3P3/2P2N1P/PP1P1PP1/RNBQ1RK1 b kq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-07-14T03:28:00.523 UTC"] [GameStartTime "2025-07-14T03:28:00.044 UTC"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.019+0.04"] 1... f5 {+0.35 9/9 132 503561} 2. d3 {0.00 12/12 183 1940644, Black makes an illegal move: f7f6} 1-0