[Event "?"] [Site "?"] [Date "2025.06.23"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "r1bqk2r/ppp1bppp/3p1n2/n2Pp1B1/4P3/2P2N2/PPQ2PPP/RN2KB1R b KQkq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-06-23T15:43:25.187 UTC"] [GameStartTime "2025-06-23T15:43:24.858 UTC"] [PlyCount "3"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.03+0.04"] 1... Bg4 {-1.45 6/0 85 1499296} 2. b4 {+0.75 6/0 85 770673} Bxf3 {-1.15 6/0 85 1181750, White makes an illegal move: b2b4} 0-1