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Bullet

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Chess960

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2221 1,945 puzzles

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Niklas Fiekas

Germany

Member since 19 Apr 2015

Active

Time spent playing: 13 days, 11 hours

Time featured on TV: 1 hour, 21 minutes

Social media linksGitHub

Optimizing the tablebase server

Hunting down tail latencies

Pieces encoded as half-bytes

Adapting nnue-pytorch's binary position format for Lichess

Lichess stores lots of chess positions, and (thanks to Stockfish) now more efficiently

Activity 4,312 games

21 Feb 2026

Solved 1 training puzzle222135

1 loss

Played 1 Bullet game

1 loss

16 Feb 2026

Solved 1 training puzzle225618

1 win

14 Feb 2026

Solved 2 training puzzles223814

1 win1 loss

9 Feb 2026

Solved 2 training puzzles222440

2 losses

Posted 1 message in Op1 - Partial 8-piece tablebase available

> Can you expand a bit on why you think DTC is a better metric than DTZ50, to the point where you'd even like to redo th…

7 Feb 2026

Gained 1 new follower

2 Feb 2026

Posted 1 message in Why I can only use SF 11 HCE to analyse on my iPad pro? The newest SF …

Unfortunately Apple intermittently broke their threaded WebAssembly implementation. It was fixed via https://github.com/…

1 Feb 2026

Created 1 new study