[Event "?"] [Site "?"] [Date "2025.07.04"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "r2qkbnr/pp1n1pp1/2p1p1p1/3p4/5P2/1P2P3/PBPPB1PP/RN1QK2R b KQkq - 0 1"] [GameDuration "00:00:05"] [GameEndTime "2025-07-04T06:54:51.404 UTC"] [GameStartTime "2025-07-04T06:54:46.305 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.15+0.04"] 1... Nh6 {-0.25 6/6 104 0, White makes an illegal move: 0000} 0-1