Chess Engine Analysis that Explains Why

DecodeChess explains the recommended chess moves of Stockfish in intuitive language, providing a 360° position analysis to reveal hidden concepts and ideas. Join the community of decoders who use DecodeChess to improve their game.

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“It helps trainers to spot and understand the hidden possibilities of the positions.”

World Championship Challenger
GM Boris Gelfand

Chess Engine Analysis with Explainable AI (XAI)

Powered by a unique XAI algorithm DecodeChess is the first chess engine analysis tool that explains why the next best chess move was recommended, analyzing threats, good moves, concepts and functionality like no other automated chess analysis tool.

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Unlimited Exploration

Reveal the pros and cons of any move you have in mind! Per each position you decode, DecodeChess provides a rich tab system that explains five areas of interest in chess analysis:

Threats: Opponent threats and what is left of them after playing the best move.

Good Moves: The best moves in descending order.

Plans: Learn how the best move supports future player plans.

Functionality: Review the functions of each meaningful piece in the decoded position.

Concepts: Important positional and tactical motives relevant to the decoded position.

Play Against a Human-like Opponent

Our computer opponent adapts to your game style and responds accordingly to create a balanced game experience. In addition, you can decode positions as you play, to create a personalized instructional chess analysis mode!

DecodeChess Technology Who is it for?Founders’ Message

The Technology Behind DecodeChess

DecodeChess introduces Explainable AI (XAI) to the world of chess engine analysis, by providing in-depth explanations to a chess engine’s recommended next moves. Until today, chess engines could tell you what the next best chess move is, but they couldn’t explain why that move was chosen. Learn More…

Who is it for?

DecodeChess was created for chess enthusiasts who want to improve their game and win every chess move. If you are a chess player with an ELO rating of up to 2000; passionate about improving your skills through self-analysis; always wondering “what is the next best chess move?”; Can’t stop thinking to yourself “why is this move good?”; want to discover the beauty and logic behind masters’ games

then we think DecodeChess is the right place for you.

We are here to help you win more moves and to become a better chess player, by adding a dimension to chess analysis that was so far out of reach.

A Word from the Founders

We are delighted you can join us on this chess adventure. Understanding Chess and AI has been a great source of interest and inspiration for us for a long time. We worked to combine these two worlds for several years and are excited with the results which we call DecodeChess: a tool that promotes chess understanding for the community of chess players.

There is still much more to come, we hope that you enjoy DecodeChess and help us expand this exciting project.

Sincerely yours,
Ofer & Zeev

What Chess Players Say About Us

“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 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

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Chess Engine Analysis that Explains Why

World Championship Challenger
GM Boris Gelfand