[Event "?"]
[Site "?"]
[Date "2025.06.23"]
[Round "1"]
[White "Helios-dev"]
[Black "Helios-base"]
[Result "0-1"]
[FEN "r1bqkb1r/1p1n2pp/4pp1n/p1Pp4/1P6/2P2P2/P3PBPP/RN1QKBNR b KQkq - 0 1"]
[GameDuration "00:00:00"]
[GameEndTime "2025-06-23T15:43:43.875 UTC"]
[GameStartTime "2025-06-23T15:43:43.376 UTC"]
[PlyCount "3"]
[SetUp "1"]
[Termination "illegal move"]
[TimeControl "4.03+0.04"]

1... axb4 {-0.35 5/0 86 923156} 2. cxb4 {-0.80 7/0 280 1634018}
f5 {-0.75 5/0 91 1647636, White makes an illegal move: c3b4} 0-1