Frequently Asked Questions


What is my FIDE/USCF rating being used for?

In your profile information, you can optionally provide your FIDE or USCF rating. This information will be used by chessbolt for analytics and user experience purposes only (for example, to calculate puzzle difficulty level, recommend puzzles tailored to your rating, etc.).

To edit your profile information now, click here.

Can I change my username or email?

Usernames cannot be changed for technical and practical reasons. Emails can be changed by editing your profile information here.

Same username or email cannot be used to create 2 accounts.

How do I reset my password?

To reset your password, log out of your account and go to the login page. Click on the link near "Forgot Your Password?" and enter your email to receive reset password instructions on your email.

If you still have issues resetting your password, please contact us and we will get back to you asap.

Puzzle Solving

This puzzle is impossible to solve. How can I see the solution?

Below is a screenshot of a fairly difficult puzzle. To view the solution, simply press the "Solution" button in the bottom left corner of the page, as highlighted in the below screenshot.

View puzzle solution

What is focus mode and how does it work?

Focus mode helps you solve the puzzle by highlighting the chess board area relevant to the solution. It also highlights the attackers and defenders involved in the puzzle.

To activate focus mode, click on the focus mode button (the "eye" symbol) before making the first move. See below screenshot for an example.

Focus mode

What are alternate winning moves?

Some positions might have many winning moves. If you play an alternate winning move, our tactics engine recognizes it as a correct solution. You can then continue solving with the move recommended by the engine.

As an example in the below screenshot, all rook moves on the g-file are recognized as winning moves.

Alternate puzzle variations

How do I see alternate variations that could be played in the puzzle?

To solve a puzzle, you will often need to calculate multiple variations that could be played by your opponent. You can see all alternate variations and tactics resulting from those variations by clicking the +/- buttons below notation area to increase/decrease the variation depth. See the screenshot below for an example.

Alternate puzzle varaitions

Can I get a summary view of all tactics in the puzzle?

Yes! Chessbolt shows you tactic visualization for every puzzle you solve. These visuals show you how different tactics play out in multiple variations. This feature is especially useful for a user to understand complex puzzles, like the one in the below screenshot.

Click on any of the "play" buttons to play the moves leading up to the tactic. The dropdown below the play button allows you to toggle visuals for alternate variations that could be played.

You can access this visualization after solving the puzzle by scrolling down the page.

Tactics Visualization

How do I go to the next puzzle?

In the bottom left corner of the page, click on the thumbs up or thumbs down button to rate the puzzle and go to next puzzle, as shown in the below screenshot.

Go to next puzzle

Are there any keyboard shortcuts I can use?

Keyboard Shortcuts:

Go to Next Move - Left Arrow Key
Go to Previous Move - Right Arrow Key
Go to Start Position - CTRL + Left Arrow Key
Go to End Position - CTRL + Right Arrow Key


Which games did you generate puzzles from?

All games analyzed to generate puzzles are taken from The Week in Chess ("TWIC") issues. Note that puzzle positions might not necessarily have occurred in the game, they can also come from analyzing variations of the game.

Attribution for logos, pictures, icons and sounds

Chessbolt Logo Attribution:

Bolt Icon made by Freepik from

Chess Pieces Attribution:

Images by User:Cburnett - Own work, This W3C-unspecified vector image was created with Inkscape, CC BY-SA 3.0
White pieces - King, Queen, Rook, Bishop, Knight, Pawn
Black pieces - King, Queen, Rook, Bishop, Knight, Pawn

Chess Board Squares Attribution:

Photos by FWStudio from Pexels

Chess Board Sounds Attribution:

Sounds by Kenney, ertfelda on freesound

Attribution for Chess Libraries

chessboard.js provides Javascript Chess Board
chess.js provides Javascript Chess Library
cm-pgn provides PGN support
chessboard-arrows allows drawing of arrows and circles on Chess Board