[Event "?"] [Site "?"] [Date "2025.07.14"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "rn1qkbnr/pp3ppp/2p5/4p3/2B1P3/2P2Q1P/PP3PP1/RNB1K2R b KQkq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-07-14T03:25:40.012 UTC"] [GameStartTime "2025-07-14T03:25:39.052 UTC"] [PlyCount "5"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.019+0.04"] 1... Nf6 {-0.35 13/13 147 1678003} 2. Bg5 {+0.45 9/9 145 558777} Nbd7 {-0.30 14/14 122 1250361} 3. Bh4 {+3.85 13/13 153 1593223} b5 {-0.25 13/13 155 1564647, White makes an illegal move: g5f4} 0-1