[Event "?"]
[Site "?"]
[Date "2025.07.14"]
[Round "1"]
[White "Helios-dev"]
[Black "Helios-base"]
[Result "0-1"]
[FEN "rnbqkb1r/ppp1p2p/3p1ppn/8/2PPP3/7P/PP2BPP1/RNBQK1NR b KQkq - 0 1"]
[GameDuration "00:00:00"]
[GameEndTime "2025-07-14T03:26:16.242 UTC"]
[GameStartTime "2025-07-14T03:26:15.931 UTC"]
[PlyCount "1"]
[SetUp "1"]
[Termination "illegal move"]
[TimeControl "4.019+0.04"]

1... f5 {-0.90 12/12 144 1360247, White makes an illegal move: b5a5} 0-1