[Event "?"]
[Site "?"]
[Date "2025.07.04"]
[Round "1"]
[White "Helios-dev"]
[Black "Helios-base"]
[Result "0-1"]
[FEN "rnbqkbnr/pp4pp/5p2/2pp4/3P4/3BP3/PP1B1PPP/RN1QK1NR b KQkq - 0 1"]
[GameDuration "00:00:05"]
[GameEndTime "2025-07-04T10:47:47.504 UTC"]
[GameStartTime "2025-07-04T10:47:42.206 UTC"]
[PlyCount "1"]
[SetUp "1"]
[Termination "illegal move"]
[TimeControl "4.1+0.04"]

1... f5 {-0.50 8/8 258 0, White makes an illegal move: 0000} 0-1