[Event "?"] [Site "?"] [Date "2025.07.14"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "r3kb1r/pppn1ppp/4pn2/q2P4/2B3b1/2N2N2/PPPB1PPP/R2QK2R b KQkq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-07-14T03:30:36.960 UTC"] [GameStartTime "2025-07-14T03:30:36.048 UTC"] [PlyCount "3"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.019+0.04"] 1... Bxf3 {-0.10 12/12 251 2713101} 2. gxf3 {+0.05 10/10 192 1014967} e5 {-0.05 13/13 215 2357853, White makes an illegal move: g2g4} 0-1