[Event "?"]
[Site "?"]
[Date "2025.06.23"]
[Round "1"]
[White "Helios-base"]
[Black "Helios-dev"]
[Result "1-0"]
[FEN "rnb1kb1r/ppp2ppp/1q6/4p3/1P2P3/P7/2P2PPP/R1BQKBNR b KQkq - 0 1"]
[GameDuration "00:00:00"]
[GameEndTime "2025-06-23T15:43:37.785 UTC"]
[GameStartTime "2025-06-23T15:43:37.534 UTC"]
[PlyCount "2"]
[SetUp "1"]
[Termination "illegal move"]
[TimeControl "4.03+0.04"]

1... Bxb4+ {-0.40 5/0 86 497080}
2. axb4 {-5.90 7/0 138 1908399, Black makes an illegal move: f8b4} 1-0