[Event "?"]
[Site "?"]
[Date "2025.06.23"]
[Round "1"]
[White "Helios-base"]
[Black "Helios-dev"]
[Result "1-0"]
[FEN "rn1qkb1r/pp2pppp/2p2nb1/3p4/6P1/2N1PP1N/PPPPB2P/R1BQK2R b KQkq - 0 1"]
[GameDuration "00:00:00"]
[GameEndTime "2025-06-23T15:43:32.260 UTC"]
[GameStartTime "2025-06-23T15:43:32.036 UTC"]
[PlyCount "2"]
[SetUp "1"]
[Termination "illegal move"]
[TimeControl "4.03+0.04"]

1... Nxg4 {-2.50 7/0 88 921409}
2. fxg4 {-0.10 7/0 114 1585627, Black makes an illegal move: f6g4} 1-0