Chess Opening Blunders

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 timeThe 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 variations1.1. 1. g3, 1. b4 ...1.2. 1. b31.3. 1. d41.4. 1. d4 Nf61.5. 1. d4 Nf6 2. Nf32. Alekhines defense3. Benoni defense4. Birds opening5. Bishops opening6. Blumenfeld counter-gambit7. Bogo-Indian defense8. Budapest gambit9. Caro-Kann10. Catalan system11. Center gambit12. Dutch defense12.1. Dutch defense12.2. Iljin-Genevsky system12.3. Leningrad system12.4. Staunton gambit12.5. Stonewall variation13. English opening14. Evans gambit15. Four knights game16. French defense16.1. French defense16.2. Classical variation16.3. Tarrasch variation16.4. Winawer variation17. Grünfeld defense18. Italian game & Hungarian defense19. Kings gambit20. Kings Indian defense20.1. Kings Indian defense20.2. Classical variation20.3. Fianchetto variation20.4. Four pawns attack20.5. Saemisch variation21. Latvian gambit22. Nimzo-Indian defense22.1. Nimzo-Indian defense22.2. Leningrad variation22.3. Rubinstein variation22.4. Saemisch variation23. Nimzowitsch defense24. Old Indian defense25. Philidors defense26. Pirc-Robatsch defense27. Queens gambit27.1. Queens gambit27.2. Queens gambit accepted27.3. Albin counter-gambit27.4. Cambridge-Springs variation27.5. Exchange variation27.6. Orthodox defense27.7. Lasker defense27.8. Tartakower defense27.9. Ragozin system27.10. Semi-Slav defense27.11. Semi-Tarrasch defense27.12. Slav defense27.13. Tarrasch defense27.14. Variation with 5. Bf428. Queens indian defense29. Queens pawn game30. Reti opening31. Petroffs defense32. Ruy Lopez32.1. Ruy Lopez32.2. Berlin defense32.3. Birds defense32.4. Breyer variation32.5. Chigorin defense32.6. Classical defense33. Scandinavian defense34. Scotch gambit & Ponzianis opening35. Scotch game36. Sicilian defense37. Three knights game38. Two knights defense39. Vienna game40. Volga-Benko gambit* Added Japanese, Hungarian, Norwegian and Swedish* Added notifications settings; select notifications you want to see in the Practice* "Go" floating button on the home screen now opens the first new exercise* Added Instagram share for puzzles* Improved dark theme support, you can now use "Follow system" option to match your system theme* Make statistics colors in the light theme more bright* Copy full exercise PGN to the engine after solution* Various fixes and improvements