Chess Terms
Chess Calculator

Chess Calculator

Do you want to find out which was the best next chess move in any position from your completed games? Maybe you missed an important defensive idea that would have helped you save the game. Or maybe you didn't see a crushing attack and went for the draw instead of a win. Here is how you can analyze your games with a tool also known as а chess calculator.


What Is A Chess Calculator?

Sometimes, people who are newer to the game use the term chess calculator to refer to chess engine or chess analysis. Computers are so powerful that they can beat every human on the planet without trouble. Even the world champion stands no chance against chess engines.

Not surprisingly, we use computers to analyze a chess position and see what they indicate is the best next chess move.

How to Analyze A Position With Chess.com’s Analysis?

The Chess.com Analysis page is a convenient and easy-to-use tool to analyze games and positions. There, you have different options to set up your desired position. Please note that you can only use computer assistance after the game is over. Players who use any type of assistance during a game are violating fair play rules and will be banned from Chess.com.

Set Up Position

Chess.com Analysis feature with Set Up Position
It’s a handy option, and you can add your position easily with a few clicks.

Here, you just need to manually drag and drop pieces and set up any legal position you want.

Chesscom analysis feature, Set Up Position option to drag & drop pieces
Drag and drop pieces to set up any desired position.

Once you’ve entered the position you want, you only need to press the big green button “Load," and you'll see a list of the best next chess moves on the top right of your screen.

The computer calculates the best next chess moves in the position with 4 lines
By default, you will have one line, but you can expand it from Settings (wheel icon).

Load From Library

For this option, you must be logged in to your Chess.com profile and have saved games in your Library to load them.

Chess.com analysis feature, second option Load from Library (you must be logged-in)
Load From Library option will allow you to select any of your saved games.

Whenever you're in a game on Chess.com, you have the option to include it in a Library. You can then easily access your saved games later.

To do this, you can use the button with the Library icon below the moves list when you review your finished games.

Feature to add your own games to Library for future analysis
This library icon can be used to save your games to a collection and review later.

Load From Archive

Chess.com analysis feature to load games from the Archive
The Archive will browse your completed games for analysis.

Once you click on it, you will be automatically shown your latest games with an option to sort by username, result, opponent, opponent title, and more.

Chess.com Analysis option to load your latest games from the Archive
Load any position from your latest games in the Archive.

Load From FEN/PGN(s)

Here, you’ll need to have a FEN or a PGN to upload so you can analyze a game or a position. Here is how to do that:

1. Under the moves list in your completed games, below the arrows, you have a share icon. Click on it.

Share icon example under the moves list in a completed game
You can copy the FEN/PGN from the share icon here.

2. This will open a dialogue box with an option to copy either the FEN or PGN of your game.

Chess.com share game feature to copy FEN or PGN of a completed game
Here you have the option to copy the FEN or PGN of the game.

3. Once copied, go back to the analysis page, choose the “Load from FEN/PGN(s)” option, and paste it there.

4. Enjoy the analysis from the strongest chess calculator in the world.

Chess.com analysis feature with computer lines and best next moves
You can go over your games or the games of other players using PGNs.

See The Next Best Chess Move The Computer Suggests

Now, when the position is set, it’s time for the essential part: going through your completed games and analyzing your moves.

Did you miss a forced win with a beautiful combination? Or did you make a move that you thought was brilliant, only to be disappointed by the mighty engine revealing the sad truth that it was a blunder?

Here is an instructive example. Take a look at the position below: 

An example position preparing to play a move sacrificing a pawn
White to move.

In this position, during the game, White played the c4-c5 push. White thought that if Black captured their pawn, White could take the knight on d4 and then use their queen to fork the rook and the king, winning a piece.

However, White missed a beautiful resource that Black had in the position to not only avoid losing a piece but also deliver a stunning checkmate and win the game. As you can see, the engine suggests the winning move 1...Ne2+, leading to a forced checkmate.

Chess.com Analysis example with a forced checkmate by sacrificing the queen
The engine demonstrates a beautiful attack that both players missed during the game.

Below, you can see the line that the computer suggested that would lead to Black's victory:

Analyzing your games and looking at the lines the computer suggests is a great way to improve and learn new chess patterns, like the Anastasia's Mate pattern from the example above.

Conclusion

Now you see how important it is to review your completed games and find out what the computer thinks is the best next move. This is a great training practice for improving your game.

Click the button below and start using the chess calculator feature on our Analysis page and see what chess moves you or your opponent might have missed during your games!

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