[Event "?"] [Site "?"] [Date "2025.07.04"] [Round "1"] [White "Helios-base"] [Black "Helios-dev"] [Result "1-0"] [FEN "rn2kbnr/ppp1ppp1/8/7p/2Pqp1b1/4N3/PP1P1PPP/RNBQKB1R w KQkq - 0 1"] [GameDuration "00:00:05"] [GameEndTime "2025-07-04T05:42:39.804 UTC"] [GameStartTime "2025-07-04T05:42:34.804 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.05+0.04"] 1. Nxg4 {-0.25 10/10 173 0, Black makes an illegal move: 0000} 1-0