[Event "?"] [Site "?"] [Date "2025.07.14"] [Round "1"] [White "Helios-base"] [Black "Helios-dev"] [Result "1-0"] [FEN "r1bqk2r/pppnbpp1/3p1n2/4p1BP/4P3/3P4/PPP1BP2/RN1QK1NR b KQkq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-07-14T03:30:51.480 UTC"] [GameStartTime "2025-07-14T03:30:51.036 UTC"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.019+0.04"] 1... Nc5 {+0.65 9/9 141 577692} 2. Nc3 {-0.55 13/13 135 1509394, Black makes an illegal move: d7f8} 1-0