Lichess Puzzle Timer: A browser extension to help you do chess puzzles slower Posted by cristoperb on Saturday February 21, 2026 @11:53AM from the catswhisker.xyz dept. https://catswhisker.xyz/log/2026/2/21/lichess_puzzle_timer/ ( 1 comment | on HN )
source code: https://github.com/cristoper/lichess-puzzle-timer/