[Event "?"]
[Site "?"]
[Date "2025.06.23"]
[Round "1"]
[White "Helios-dev"]
[Black "Helios-base"]
[Result "0-1"]
[FEN "rn1qk2r/pbp1n1pp/1p1b1p2/3pp3/8/PP1PP2P/1BPNNPP1/R2QKB1R b KQkq - 0 1"]
[GameDuration "00:00:00"]
[GameEndTime "2025-06-23T15:43:38.242 UTC"]
[GameStartTime "2025-06-23T15:43:37.953 UTC"]
[PlyCount "3"]
[SetUp "1"]
[Termination "illegal move"]
[TimeControl "4.03+0.04"]

1... f5 {-0.05 5/0 90 1082253} 2. b4 {-0.50 5/0 90 466169}
O-O {-0.60 5/0 84 892488, White makes an illegal move: b3b4} 0-1