[Event "?"] [Site "?"] [Date "2025.06.23"] [Round "1"] [White "Helios-base"] [Black "Helios-dev"] [Result "1-0"] [FEN "rnbqk1nr/2ppp1bp/p4pp1/1p6/3P1B2/2P2N2/PP2PPPP/RN1QKB1R b KQkq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-06-23T15:40:45.266 UTC"] [GameStartTime "2025-06-23T15:40:45.049 UTC"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4+0.04"] 1... f5 {-1.40 6/0 112 994794} 2. a4 {+1.15 5/0 85 1054486, Black makes an illegal move: f6f5} 1-0