[Event "?"] [Site "?"] [Date "2025.07.04"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "r1bqk2r/ppp1n1pp/2n1pp2/3p4/Q1PP4/2P1PN2/P3BPPP/R1B1K2R b KQkq - 0 1"] [GameDuration "00:00:05"] [GameEndTime "2025-07-04T06:51:33.804 UTC"] [GameStartTime "2025-07-04T06:51:28.428 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.15+0.04"] 1... Nf5 {-0.05 3/3 251 0, White makes an illegal move: 0000} 0-1