Found by static analysis of the app package; bundled is not the same as active. All SDKs →
Update history
5.8.4Sep 14, 2026 · seen Sep 26, 2026
* Added Czech and Korean translations<br>* Show solved puzzles count on the home screen<br>* Show best and worst subtopics on the statistics screen<br>* Increased board size in the landscape mode<br>* Feel free to share your experience via the feedback!<br>* Various fixes and improvements<br>
Only the current version so far — new entries appear as the game ships updates.
Trailer
Chess Opening Blunders is a board game by Chess King with 500,000+ downloads (about 846K estimated). +135 installs in the last 7 days. Rated 4.4 from 8.5K ratings. Released Dec 24, 2015. Install growth, rank history, SDKs and ad networks.
From the store listing: “Encyclopedia of Opening Blunders – learn to play chess by learning the opening mistakes and traps that have been discovered over time. The program is designed for studying the blunders in more than 40 openings and contains over 1,250 instructive exercises of varying difficulty from practical games.
This course is in…”