[Event "?"] [Site "?"] [Date "2025.07.04"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "r1bqkb1r/ppp2p1p/2np2pn/4p3/2B1P2P/2NP1N2/PPP2PP1/R1BQK2R b KQkq - 0 1"] [GameDuration "00:00:05"] [GameEndTime "2025-07-04T06:07:29.203 UTC"] [GameStartTime "2025-07-04T06:07:24.154 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.08+0.04"] 1... Ng4 {-0.60 7/7 174 0, White makes an illegal move: 0000} 0-1