Learn the WHY Behind Any Chess Move

Improve your skills with the most advanced chess analysis tool online

2 decodes per day
Life-time Stockfish analysis
Life-time play vs computer
No credit card needed
60 Decode credits
One-time payment
No recurring billing
Valid for 12 months
No money back guarantee
Access all features
Unlimited Decodes per month
Billed annually, $84
Subscription, recurring annually
Cancel anytime
30-day money back guarantee
Access all features

DecodeChess Helps Players Improve at Chess

“DecodeChess helps me go through all of my games and assess my strengths and weaknesses. With a chess coach, I might be able to analyze one or two games per week. With your product, I can analyze many times more. In that way, the technology you’ve invented is helping make me a better chess player.”

Peter RadaelliUnited States

“I have been playing the DecodeChess computer and using the Decode process to work through the various main lines. The running graph that is displayed is excellent as well. Whole setup is working really well and I am learning a lot, easily the best chess education around.”

Ray JohnsonNSW - Australia

“I am really engaged, and like the way it describes everything in human language and is easy to understand. I fully studied the Danish Gambit, and use it as my main opening now.”

Harut BadalyanOxford - United Kingdom

“I enjoy the insights Decode Chess supplies, especially on the complex mid-game positions. Although I’m not a very strong player (yet) I appreciate the depth and explanations that Decode Chess provides. I highly recommend this app.”

Guy BekerMelbourne - Australia

I love the range and depth of the analysis provided after a “decode.” This is the most helpful feedback I have ever found.

John WilliamsenUnited States (US)

Thanks again for making DecodeChess in the first place. It’s like those wonderful books I learned so much from where the reasons behind each move were explained, getting ideas pointed out to me like a chess coach does.

Dan O’hanlonUnited States

Frequently Asked Questions

What is a decode?

A Decode is an explanation in intuitive language, generated by our unique artificial intelligence algorithms. With a decode you can do two things:

  1. Decode Game: Analyze an entire game and receive explanations for the recommended moves of a chess engine (Stockfish). This only takes about 60 seconds!
  2. Decode Deep: Analyze a chess position in-depth to receive a 360° analysis of threats, attacking plans, concepts, piece functionality, good moves, and more.

We usually recommend to use Decode Game and then lock in on 2-3 key positions and click on Deep Decode.

What file formats do you support for uploading my own games?

We currently support PGN and FEN formats.

Are my games saved?

Yes, we will save any game you upload, and you’ll be able to tag or delete them. Most importantly – we will save every Decode you perform, be it a single position or an entire game.

Can I use DecodeChess on a mobile phone?

We do not have an app that you can download yet, but DecodeChess is mobile-responsive. This means that you can access it via your smartphone, simply with less analysis features due to the size of the screen.

Is there a money-back guarantee?

The annual and monthly subscriptions include  a 30-day money back guarantee.

The Light plan does not include a money-back guarantee.

10 Features that Make DecodeChess a Unique Chess Analysis Tool

Click [+] to expand

1 Explaining the suggested moves of a chess engine in rich, intuitive language


2 Providing a learning framework with our Idea-Problem-Solution methodology


3 Explaining threats

Allowing you to toggle between before and after modes to see how the recommended move helps minimize your opponent’s threats.


4 Suggesting good moves and attacking plans

Good moves are displayed in descending order and an entire tab is dedicated to suggested plans to win the game.


5 Revealing the underlying concepts of any position

6 Reviewing piece functionality

7 Human-like computer opponent

Adapts to your play style to give a balanced game experience.

8 Analyze as you play!

You can decode positions as you play against our computer opponent, which turns the playing experience into an instructional mode.

9 Smart game overview

A visual game graph and meta analysis of the game’s course, suggesting interesting positions to decode.

10 Stockfish engine analysis

The best Stockfish chess engine experience! With one click you can receive a basic Stockfish Engine analysis to any position, without the hassle of downloading it to your computer.

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