[Event "?"] [Site "?"] [Date "2025.07.14"] [Round "1"] [White "Helios-base"] [Black "Helios-dev"] [Result "1-0"] [FEN "r1bqk1nr/1p1pbppp/p3p3/n1p5/3PP3/P1N2N2/1PP1BPPP/R1BQK2R b KQkq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-07-14T03:20:52.542 UTC"] [GameStartTime "2025-07-14T03:20:52.055 UTC"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.05+0.04"] 1... Nc6 {-0.85 11/11 144 577097} 2. d5 {+1.80 14/14 149 1688390, Black makes an illegal move: a5c4} 1-0