Lichess Puzzle Timer, by El-Tecson

Make every puzzle feel like a real game and build habits that actually transfer.

🚀 Lichess Puzzle Timer – Time-Constrained Training for Lichess Puzzles (also available in Firefox and Firefox for Android) Lichess Puzzle Timer is a lightweight Chrome extension designed to help chess players train faster, smarter, and more consistently on Lichess puzzles. Built directly into the Lichess puzzle page, this extension adds a real-time puzzle timer, automated puzzle flow, and performance analytics—no external tools, no accounts, no clutter. Perfect for players focused on speed chess, tactics training, blitz improvement, and puzzle-solving rhythm. ⏱️ Key Features - Real-Time Puzzle Timer Track how long you take on every puzzle with a clean, floating timer popup that you can drag and resize. - 2 Modes for Timer: - Per-Puzzle Mode: Resets the timer after each puzzle. - Cumulative Mode: a set amount of time. With the additional feature of automatically stopping when a puzzle is solved, and automatically resuming when a new puzzle is loaded. - Any motif, any difficulty, adjustable time Will work in any motif, any difficulty (Lichess has built-in selection for difficulty), adjustable time. Basically as long as it has a puzzle board, it will work. - Automatic Puzzle Detection & Skipping Instantly detects puzzle completion and out-of-time scenario and smoothly advances to the next puzzle. - Settings Page Easily customize everything through the chrome extension's settings page (accessible through clicking the Timer Popup's Settings Button, Menu Popup's wide logo, and the extension's default_popup's wide logo). - Timer Presets for different Time Controls: - Very Fast – 10s time control / 3s cooldown (Ideal for Bullet) - Fast – 20s / 3s (Ideal for Blitz) - Normal – 60s / 3s (Ideal for Blitz and Rapid) - Slow – 2m / 5s (ideal for Rapid) - Very Slow – 5m / 15s (Ideal for Rapid and Classical) - Analytics Popup Check your total puzzles, accuracy, total solved and unsolved puzzles in real-time. - Customizable Visuals & Sounds - Toggle timer visuals - Adjustable volume - Optional sound effects - Light Mode preset available - Smart, Safe Integration - Uses safe DOM interaction - Only runs on Lichess puzzle pages - No tracking, no accounts, no unnecessary permissions 🧠 Designed for Serious Training Lichess Puzzle Timer helps you: - Improve tactical speed - Improve time discipline - Build puzzle-solving discipline - Develop a consistent training rhythm - Practice under realistic time pressure Ideal for blitz players, bullet grinders, and tactical trainers who want a focused puzzle workflow. 🆕 Latest Updates v3.2.3 - Fix timer not skipping puzzle when countdown is set to zero - Fix incorrect solved state - Make timer work properly with Lichess feature "Jump to next puzzle immediately" turned on v3.2.1 - Fix cancel button not cancelling skip on timer end - Fix excessive skipping on timerEnd while timerType=1 v3.2.0 - Added support for mobile devices - Made the extension Firefox-compatible - Made cancel button also cancel skipping - Made skipToNextPuzzle=false and timerType=1 work normally - Fix timerEnd issues 🔒 Privacy-Friendly & Lightweight - No ads - No tracking - No external accounts - Minimal permissions 📦 Open Source Source code available on GitHub: 👉 https://github.com/el-tecson/lichess-puzzle-timer/