Chess Blunder Trainer
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72 reviews
Everyone
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1K+
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About this game
Analyze your chess blunders from your own games as interactive puzzles.
You can automatically import your games from the online platforms Chess.com and Lichess, or from your personal PGN files.
Powered by chess engine evaluations, the app identifies your blunders and mistakes, offering you the unique opportunity to replay these critical moments as personalized puzzles.
With the app, you will turn your mistakes into valuable learning opportunities!
You can automatically import your games from the online platforms Chess.com and Lichess, or from your personal PGN files.
Powered by chess engine evaluations, the app identifies your blunders and mistakes, offering you the unique opportunity to replay these critical moments as personalized puzzles.
With the app, you will turn your mistakes into valuable learning opportunities!
Replay blunders from your own chess games as puzzles
Updated on
Available on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- No data shared with third partiesLearn more about how developers declare sharing
- This app may collect these data typesLocation, App activity and 2 others
- Data is encrypted in transit
Ratings and reviews
67 reviews
Mark Bateman
- Flag inappropriate
May 4, 2024
Is nice idea. I also import games from the old legends and see if I can come up with an alternative. Many middle games can have a 1 pawn blunder and still be winnable. Bad is no way to save or export. Must be careful when naming an import. I change each game date to the same thing so that many imports go into same training. Too bad I can't group by player name or event.
Mercutio1243
December 31, 2024
Mark, thank you for the review!
As for your comments, please be so kind as to check the settings: in the segmentation mode setting, you can change how training sets are built. Also, you can export a game or position by using the information icon at the top of the "improve" screen
Hope this helps, please consider to update your rating to 5 stars :)
vlad kostyna
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- Show review history
May 12, 2025
Imagine if puzzle apps were not based on random positions, but YOUR actual games! This app does just that and I simply imported my last 100 games from chess com to go over my personal mistakes an oh boy they were a lot. it shows you evaluation after your blunder, and after the best move, also lets you play the scenarios from there with an evaluation bar so you can analyse the follow up too. Great app, I don't know why it is not gaining traction
1 person found this review helpful
Mercutio1243
May 12, 2025
Hi Vlad, thanks for your kind rating. It is a personal project of mine, so I cannot really advertise it. But feel free to spread the word! :)
Skyez
- Flag inappropriate
June 16, 2026
this is an amazing app 🙏🏽😤, I also sent a feature idea hopefully the email is readable lol cuz it had a whole bunch of + symbols for some reason
Mercutio1243
June 16, 2026
Thank you, Skyez! Your email has not reached me, can you please send again to chessblundertrainer@gmail.com
What’s new
Introduction of dark mode; introduction of additional chess board colors; introduction of new release notes dialog; various bug fixes and improvements
App support
About the developer
Thomas Köppen
chessblundertrainer@gmail.com
Wißmannstraße 35
50823 Köln
Germany