[Event "?"]
[Site "?"]
[Date "2025.07.04"]
[Round "1"]
[White "Helios-dev"]
[Black "Helios-base"]
[Result "0-1"]
[FEN "rnbqk2r/pppp2pp/3bp3/5p2/2BP4/2P2N2/PP1BQPPP/R3K2R b KQkq - 0 1"]
[GameDuration "00:00:05"]
[GameEndTime "2025-07-04T10:46:58.804 UTC"]
[GameStartTime "2025-07-04T10:46:53.054 UTC"]
[PlyCount "1"]
[SetUp "1"]
[Termination "illegal move"]
[TimeControl "4.1+0.04"]

1... f4 {+0.15 7/7 841 0, White makes an illegal move: 0000} 0-1