[Event "?"]
[Site "?"]
[Date "2025.06.30"]
[Round "1"]
[White "Heimdall-base"]
[Black "Heimdall-dev"]
[Result "1-0"]
[FEN "rnbqk1nr/pp3ppp/1p1p4/4p3/1P2P3/3P1N2/P1P1BPPP/R1BQK2R b KQkq - 0 1"]
[GameDuration "00:00:00"]
[GameEndTime "2025-06-30T23:20:09.571 CEST"]
[GameStartTime "2025-06-30T23:20:08.814 CEST"]
[PlyCount "2"]
[SetUp "1"]
[Termination "illegal move"]
[TimeControl "5.09+0.05"]

1... Nf6 {-0.97 16/27 268 524721}
2. O-O {+0.91 16/27 286 484449, Black makes an illegal move: g8f6} 1-0