Chess Opening Blunders vs Chess Puzzles & Tactics

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, middle game, 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 • Interactive theoretical lessons • 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 The course includes a free part, in which you can test the program. Lessons offered in the free version is 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 32.7. Exchange variation 32.8. Marshall attack 32.9. Steinitz defense deferred 32.10. Steinitz 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

Solve interactive chess positions on the board and find the correct continuation. Train tactics, mating patterns, and endgames. Choose the categories or motifs you want to practice, then set a puzzle Elo range or difficulty that fits your target session. Built for chess players from beginner through advanced. Practice familiar ideas such as forks, pins, skewers, discovered attacks, sacrifices, promotion, and zugzwang. Develop pattern recognition and calculation through focused puzzle practice.