Learn the WHY Behind Chess Moves

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.

We currently support PGN and FEN formats.

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.

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.

Annual and monthly subscriptions include  a 30-day and a 7-day money back guarantee, respectively.

Pay-as-you-go plans do not include a money-back guarantee.

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

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

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

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

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

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.