[Event "Fastchess Tournament"]
[Site "?"]
[Date "2026.09.14"]
[Round "858"]
[White "Heimdall-base"]
[Black "Heimdall-dev"]
[Result "0-1"]
[EngineWhiteName "Heimdall dev (unknown at unknown)"]
[EngineWhiteAuthor "Nocturn9x (see LICENSE)"]
[EngineBlackName "Heimdall dev (unknown at unknown)"]
[EngineBlackAuthor "Nocturn9x (see LICENSE)"]
[SetUp "1"]
[FEN "r1b1kbnr/1pppqppp/2n5/p3p3/1P6/3P1NP1/P1P1PPBP/RNBQK2R b KQkq - 0 5"]
[GameDuration "00:00:00"]
[GameStartTime "2026-09-14T14:53:44 +0000"]
[GameEndTime "2026-09-14T14:53:44 +0000"]
[PlyCount "2"]
[Termination "illegal move"]
[TimeControl "-"]

5... axb4 {+0.51/9 0.023s, n=20784, sd=14, White makes an illegal move: e1h1}
0-1