(also available on Android) (also available in the Chrome Web Store) Lichess Puzzle Timer is a lightweight extension designed to help chess players train faster, smarter, and more consistently on Lichess puzzles in any device. 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.

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

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.

Added suport-me links and buttons

Change all instances of "el-tecson" to "eltecson" and "El-Tecson" to "Eltecson"

Reset isFailedPuzzle ref on timer cancel
Turn off all intervals and animation loops on timer cancel
Make review link lead to firefox addon when using firefox browser

No ads
No tracking
No external accounts
Minimal permissions

Source code available on GitHub: 👉 https://github.com/eltecson/lichess-puzzle-timer/

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