[Event "?"]
[Site "?"]
[Date "2025.06.23"]
[Round "1"]
[White "Helios-base"]
[Black "Helios-dev"]
[Result "1-0"]
[FEN "rn1qkb1r/pb1ppppp/1p3n2/8/1pPP4/4PN2/PB3PPP/RN1QKB1R b KQkq - 0 1"]
[GameDuration "00:00:00"]
[GameEndTime "2025-06-23T15:40:33.151 UTC"]
[GameStartTime "2025-06-23T15:40:32.756 UTC"]
[PlyCount "4"]
[SetUp "1"]
[Termination "illegal move"]
[TimeControl "4+0.04"]

1... a6 {0.00 6/0 105 750885} 2. Nbd2 {-0.30 5/0 87 424145}
a5 {-0.40 6/0 87 843174}
3. d5 {-0.25 6/0 83 1575818, Black makes an illegal move: a6a5} 1-0