MattBench MattBench Event details n9x.co

Event details

[Event "Fastchess Tournament"]
[Site "?"]
[Date "2026.09.14"]
[Round "258"]
[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 "rnbqkbnr/p1ppppp1/7p/1p6/1P2N3/7P/P1PPPPP1/R1BQKBNR w KQkq - 4 5"]
[GameDuration "00:00:00"]
[GameStartTime "2026-09-14T13:36:32 +0000"]
[GameEndTime "2026-09-14T13:36:33 +0000"]
[PlyCount "37"]
[Termination "illegal move"]
[TimeControl "-"]

5. a4 {+0.80/9 0.035s, n=21490, sd=14} bxa4 {-0.73/10 0.026s, n=22207, sd=15}
6. e3 {+0.83/10 0.065s, n=40879, sd=14} e6 {-0.88/9 0.016s, n=14402, sd=14}
7. Bb2 {+0.90/10 0.024s, n=17484, sd=16} Bb7 {-0.76/9 0.021s, n=12601, sd=13}
8. Nc5 {+0.83/10 0.017s, n=15511, sd=16} Bxc5 {-0.90/10 0.017s, n=13542, sd=15}
9. bxc5 {+0.84/11 0.026s, n=17574, sd=17} Nf6 {-0.99/10 0.044s, n=29682, sd=16}
10. Rxa4 {+0.86/9 0.020s, n=14424, sd=15} a5 {-0.84/10 0.017s, n=13583, sd=7}
11. Nf3 {+0.98/10 0.030s, n=22538, sd=15} Bc6 {-1.02/10 0.046s, n=29040, sd=17}
12. Ra2 {+0.82/9 0.031s, n=20999, sd=15} Qe7 {-0.99/9 0.036s, n=31022, sd=17}
13. Qa1 {+0.96/9 0.013s, n=12792, sd=14} Qxc5 {-0.94/10 0.038s, n=28921, sd=18}
14. Ba3 {+0.95/8 0.016s, n=12731, sd=9} Qa7 {-0.25/10 0.030s, n=26089, sd=17}
15. Bb2 {+0.38/9 0.016s, n=14091, sd=12} d6 {+0.14/10 0.024s, n=18467, sd=14}
16. Bd4 {+0.09/9 0.032s, n=27336, sd=15} Qb7 {+0.05/11 0.019s, n=16360, sd=18}
17. Bxf6 {-0.50/9 0.014s, n=13302, sd=13} gxf6 {+0.36/9 0.019s, n=16864, sd=15}
18. Rb2 {-0.03/9 0.022s, n=15030, sd=14} Qc8 {+0.12/10 0.020s, n=16978, sd=18}
19. Nd4 {-0.49/11 0.028s, n=24801, sd=19} Bd7 {+0.01/9 0.016s, n=14917, sd=13}
20. Be2 {-0.34/10 0.014s, n=12179, sd=17} c5 {+0.49/11 0.030s, n=25024, sd=20}
21. Bf3 {-0.55/8 0.014s, n=12563, sd=13} d5 {+0.35/10 0.024s, n=21402, sd=16}
22. Nb3 {-0.45/8 0.030s, n=25256, sd=13}
a4 {+0.31/10 0.027s, n=18987, sd=17, White makes an illegal move: e1h1} 0-1