Chess Opening Blunders
8.9 600
v5.4.1 by Chess King
About Opening Blunders
Opening Blunders (Package Name: com.chessking.android.learn.openingblunders) is developed by Chess King and the latest version of Chess Opening Blunders 5.4.1 was updated on November 7, 2025. Chess Opening Blunders is in the category of Board. You can check all apps from the developer of Chess Opening Blunders and find 160 alternative apps to Chess Opening Blunders on Android. Currently this app is for free. This app can be downloaded on Android 7.0+ on APKFab or Google Play. All APK/XAPK files on APKFab.com are original and 100% safe with fast download.
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 the series Chess King Learn (https://learn.chessking.com/), which is an unprecedented chess teaching method. In the series are included courses in tactics, strategy, openings, middlegame, and endgame, split by levels from beginners to experienced players, and even professional players.
With the help of this course, you can improve your chess knowledge, learn new tactical tricks and combinations, and consolidate the acquired knowledge into practice.
The program acts as a coach who gives tasks to solve and helps to solve them if you get stuck. It will give you hints, explanations and show you even striking refutation of the mistakes you might make.
Advantages of the program:
♔ High quality examples, all double-checked for correctness
♔ You need to enter all key moves, required by the teacher
♔ Different levels of complexity of the tasks
♔ Various goals, which need to be reached in the problems
♔ The program gives hint if an error is made
♔ For typical mistaken moves, the refutation is shown
♔ You can play out any position of the tasks against the computer
♔ Structured table of contents
♔ The program monitors the change in the rating (ELO) of the player during the learning process
♔ Test mode with flexible settings
♔ Possibility to bookmark favorite exercises
♔ The application is adapted to the bigger screen of a tablet
♔ The application does not require an internet connection
♔ You can link the app to a free Chess King account and solve one course from several devices on Android, iOS and Web at the same time
The course includes a free part, in which you can test the program. Lessons offered in the free version are fully functional. They allow you to test the application in real world conditions before releasing the following topics:
1. Rare variations
1.1. 1. g3, 1. b4 ...
1.2. 1. b3
1.3. 1. d4
1.4. 1. d4 Nf6
1.5. 1. d4 Nf6 2. Nf3
2. Alekhine's defense
3. Benoni defense
4. Bird's opening
5. Bishop's opening
6. Blumenfeld counter-gambit
7. Bogo-Indian defense
8. Budapest gambit
9. Caro-Kann
10. Catalan system
11. Center gambit
12. Dutch defense
12.1. Dutch defense
12.2. Iljin-Genevsky system
12.3. Leningrad system
12.4. Staunton gambit
12.5. Stonewall variation
13. English opening
14. Evans gambit
15. Four knights' game
16. French defense
16.1. French defense
16.2. Classical variation
16.3. Tarrasch variation
16.4. Winawer variation
17. Grünfeld defense
18. Italian game & Hungarian defense
19. King's gambit
20. King's Indian defense
20.1. King's Indian defense
20.2. Classical variation
20.3. Fianchetto variation
20.4. Four pawns' attack
20.5. Saemisch variation
21. Latvian gambit
22. Nimzo-Indian defense
22.1. Nimzo-Indian defense
22.2. Leningrad variation
22.3. Rubinstein variation
22.4. Saemisch variation
23. Nimzowitsch defense
24. Old Indian defense
25. Philidor's defense
26. Pirc-Robatsch defense
27. Queen's gambit
27.1. Queen's gambit
27.2. Queen's gambit accepted
27.3. Albin counter-gambit
27.4. Cambridge-Springs variation
27.5. Exchange variation
27.6. Orthodox defense
27.7. Lasker defense
27.8. Tartakower defense
27.9. Ragozin system
27.10. Semi-Slav defense
27.11. Semi-Tarrasch defense
27.12. Slav defense
27.13. Tarrasch defense
27.14. Variation with 5. Bf4
28. Queen's indian defense
29. Queen's pawn game
30. Reti opening
31. Petroff's defense
32. Ruy Lopez
32.1. Ruy Lopez
32.2. Berlin defense
32.3. Bird's defense
32.4. Breyer variation
32.5. Chigorin defense
32.6. Classical defense
33. Scandinavian defense
34. Scotch gambit & Ponziani's opening
35. Scotch game
36. Sicilian defense
37. Three knights' game
38. Two knights' defense
39. Vienna game
40. Volga-Benko gambit
This course is in the series Chess King Learn (https://learn.chessking.com/), which is an unprecedented chess teaching method. In the series are included courses in tactics, strategy, openings, middlegame, and endgame, split by levels from beginners to experienced players, and even professional players.
With the help of this course, you can improve your chess knowledge, learn new tactical tricks and combinations, and consolidate the acquired knowledge into practice.
The program acts as a coach who gives tasks to solve and helps to solve them if you get stuck. It will give you hints, explanations and show you even striking refutation of the mistakes you might make.
Advantages of the program:
♔ High quality examples, all double-checked for correctness
♔ You need to enter all key moves, required by the teacher
♔ Different levels of complexity of the tasks
♔ Various goals, which need to be reached in the problems
♔ The program gives hint if an error is made
♔ For typical mistaken moves, the refutation is shown
♔ You can play out any position of the tasks against the computer
♔ Structured table of contents
♔ The program monitors the change in the rating (ELO) of the player during the learning process
♔ Test mode with flexible settings
♔ Possibility to bookmark favorite exercises
♔ The application is adapted to the bigger screen of a tablet
♔ The application does not require an internet connection
♔ You can link the app to a free Chess King account and solve one course from several devices on Android, iOS and Web at the same time
The course includes a free part, in which you can test the program. Lessons offered in the free version are fully functional. They allow you to test the application in real world conditions before releasing the following topics:
1. Rare variations
1.1. 1. g3, 1. b4 ...
1.2. 1. b3
1.3. 1. d4
1.4. 1. d4 Nf6
1.5. 1. d4 Nf6 2. Nf3
2. Alekhine's defense
3. Benoni defense
4. Bird's opening
5. Bishop's opening
6. Blumenfeld counter-gambit
7. Bogo-Indian defense
8. Budapest gambit
9. Caro-Kann
10. Catalan system
11. Center gambit
12. Dutch defense
12.1. Dutch defense
12.2. Iljin-Genevsky system
12.3. Leningrad system
12.4. Staunton gambit
12.5. Stonewall variation
13. English opening
14. Evans gambit
15. Four knights' game
16. French defense
16.1. French defense
16.2. Classical variation
16.3. Tarrasch variation
16.4. Winawer variation
17. Grünfeld defense
18. Italian game & Hungarian defense
19. King's gambit
20. King's Indian defense
20.1. King's Indian defense
20.2. Classical variation
20.3. Fianchetto variation
20.4. Four pawns' attack
20.5. Saemisch variation
21. Latvian gambit
22. Nimzo-Indian defense
22.1. Nimzo-Indian defense
22.2. Leningrad variation
22.3. Rubinstein variation
22.4. Saemisch variation
23. Nimzowitsch defense
24. Old Indian defense
25. Philidor's defense
26. Pirc-Robatsch defense
27. Queen's gambit
27.1. Queen's gambit
27.2. Queen's gambit accepted
27.3. Albin counter-gambit
27.4. Cambridge-Springs variation
27.5. Exchange variation
27.6. Orthodox defense
27.7. Lasker defense
27.8. Tartakower defense
27.9. Ragozin system
27.10. Semi-Slav defense
27.11. Semi-Tarrasch defense
27.12. Slav defense
27.13. Tarrasch defense
27.14. Variation with 5. Bf4
28. Queen's indian defense
29. Queen's pawn game
30. Reti opening
31. Petroff's defense
32. Ruy Lopez
32.1. Ruy Lopez
32.2. Berlin defense
32.3. Bird's defense
32.4. Breyer variation
32.5. Chigorin defense
32.6. Classical defense
33. Scandinavian defense
34. Scotch gambit & Ponziani's opening
35. Scotch game
36. Sicilian defense
37. Three knights' game
38. Two knights' defense
39. Vienna game
40. Volga-Benko gambit
Opening Blunders 5.4.1 Update
* Improved support for Android 15+ devices* Added showing of small marks (??, ?!, !?, etc) on the board
* Show solution rating for test
* Feel free to share your experience via the feedback!
* Various fixes and improvements
Read More
Opening Blunders Features
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Chess King Learn video description for Mobile iOS and Android
Previous Versions
More
Variant
Arch
Version
DPI
10000027
November 1, 2025
Chess Opening Blunders
5.4.1
(10000027)
Requires Android: Android 7.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: d8fa6abd55984785a452c7b51876afef672fe33b
Base APK: com.chessking.android.learn.openingblunders.apk
Split APKs: config.arm64_v8a, config.xxhdpi
Size: 16.68 MB
What's New:
* Improved support for Android 15+ devices
* Added showing of small marks (??, ?!, !?, etc) on the board
* Show solution rating for test
* Feel free to share your experience via the feedback!
* Various fixes and improvements
* Added showing of small marks (??, ?!, !?, etc) on the board
* Show solution rating for test
* Feel free to share your experience via the feedback!
* Various fixes and improvements
arm64-v8a
Android 7.0+
nodpi
10000027
November 5, 2025
Chess Opening Blunders
5.4.1
(10000027)
Requires Android: Android 7.0+
Architecture: armeabi-v7a
Screen DPI: nodpi
SHA1: d92543574d55d0a06cbb98d6a405bae830b9c9c7
Base APK: com.chessking.android.learn.openingblunders.apk
Split APKs: config.armeabi_v7a, config.xhdpi
Size: 16.31 MB
What's New:
* Improved support for Android 15+ devices
* Added showing of small marks (??, ?!, !?, etc) on the board
* Show solution rating for test
* Feel free to share your experience via the feedback!
* Various fixes and improvements
* Added showing of small marks (??, ?!, !?, etc) on the board
* Show solution rating for test
* Feel free to share your experience via the feedback!
* Various fixes and improvements
armeabi-v7a
Android 7.0+
nodpi
10000027
November 7, 2025
Chess Opening Blunders
5.4.1
(10000027)
Requires Android: Android 7.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: 8921f80242a1f168948c147d992ff4b3de28c35f
Base APK: com.chessking.android.learn.openingblunders.apk
Split APKs: config.arm64_v8a, config.xxxhdpi
Size: 29.22 MB
What's New:
* Improved support for Android 15+ devices
* Added showing of small marks (??, ?!, !?, etc) on the board
* Show solution rating for test
* Feel free to share your experience via the feedback!
* Various fixes and improvements
* Added showing of small marks (??, ?!, !?, etc) on the board
* Show solution rating for test
* Feel free to share your experience via the feedback!
* Various fixes and improvements
arm64-v8a
Android 7.0+
nodpi
Variant
Arch
Version
DPI
10000026
January 29, 2025
Chess Opening Blunders
4.2.2
(10000026)
Requires Android: Android 7.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: 81efdae2932485d3b9d3f6d0ec3a0e2fd7395aa8
Base APK: com.chessking.android.learn.openingblunders.apk
Split APKs: config.arm64_v8a, config.xxhdpi
Size: 15.96 MB
What's New:
* Refreshed design, using the latest Android visual styles now
* Improved external UCI engines support
* Fixed stability issues on Android 7
* Feel free to share your experience via the feedback!
* Various fixes and improvements
* Improved external UCI engines support
* Fixed stability issues on Android 7
* Feel free to share your experience via the feedback!
* Various fixes and improvements
arm64-v8a
Android 7.0+
nodpi
10000026
January 29, 2025
Chess Opening Blunders
4.2.2
(10000026)
Requires Android: Android 7.0+
Architecture: armeabi-v7a
Screen DPI: nodpi
SHA1: 4a0ada62e0a9dfaf949a2936b100378f5e78395c
Base APK: com.chessking.android.learn.openingblunders.apk
Split APKs: config.armeabi_v7a, config.xhdpi
Size: 15.69 MB
What's New:
* Refreshed design, using the latest Android visual styles now
* Improved external UCI engines support
* Fixed stability issues on Android 7
* Feel free to share your experience via the feedback!
* Various fixes and improvements
* Improved external UCI engines support
* Fixed stability issues on Android 7
* Feel free to share your experience via the feedback!
* Various fixes and improvements
armeabi-v7a
Android 7.0+
nodpi
10000026
January 30, 2025
Chess Opening Blunders
4.2.2
(10000026)
Requires Android: Android 7.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: a580456fd743e488be4e4278b174bd557e05420d
Base APK: com.chessking.android.learn.openingblunders.apk
Split APKs: config.arm64_v8a, config.xxxhdpi
Size: 15.96 MB
What's New:
* Refreshed design, using the latest Android visual styles now
* Improved external UCI engines support
* Fixed stability issues on Android 7
* Feel free to share your experience via the feedback!
* Various fixes and improvements
* Improved external UCI engines support
* Fixed stability issues on Android 7
* Feel free to share your experience via the feedback!
* Various fixes and improvements
arm64-v8a
Android 7.0+
nodpi
Requires Android: Android 7.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: e6732bf79df571f65999a5007501f2485dcc936a
Size: 14.95 MB
What's New:
* Added training mode based on Spaced Repetition - it combines erroneous exercises with new ones and presents the more suitable set of puzzles to solve.
* Added ability to launch tests on bookmarks.
* Added daily goal for puzzles - chose how many exercise you need to keep your skills in shape.
* Added daily streak - how many days in a row the daily goal is completed.
* Various fixes and improvements
* Added ability to launch tests on bookmarks.
* Added daily goal for puzzles - chose how many exercise you need to keep your skills in shape.
* Added daily streak - how many days in a row the daily goal is completed.
* Various fixes and improvements
Requires Android: Android 5.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: 907987325c77d56aae9997417e17be772993ba88
Size: 15.73 MB
What's New:
* Added training mode based on Spaced Repetition - it combines erroneous exercises with new ones and presents the more suitable set of puzzles to solve.
* Added ability to launch tests on bookmarks.
* Added daily goal for puzzles - chose how many exercise you need to keep your skills in shape.
* Added daily streak - how many days in a row the daily goal is completed.
* Various fixes and improvements
* Added ability to launch tests on bookmarks.
* Added daily goal for puzzles - chose how many exercise you need to keep your skills in shape.
* Added daily streak - how many days in a row the daily goal is completed.
* Various fixes and improvements
More Information
Package Name:
Update Date:
2025-11-07
Latest Version:
5.4.1
Need Update:
Available on:
Requirements:
Android 7.0+
Report:
Safe to Download
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