Application Description

1000 high-quality puzzles for ELO 2200

Encyclopedia of Chess Combinations vol. 2 (ECC vol. 2) is the definitive training resource designed specifically for players with an ELO rating of 2200. Developed from the latest edition of the world-renowned bestseller by Chess Informant, this course offers a systematic and meticulously curated collection of intermediate-level chess combinations. Each puzzle is hand-selected and organized by tactical theme, ensuring an engaging and highly effective learning experience tailored to players at this level. Unlike random, low-level tactics found across the web, this course functions like a true Chess Sphinx—challenging you with depth and precision, revealing new layers of complexity just as you think you've mastered a particular pattern.

Part of the acclaimed Chess King Learn series (https://learn.chessking.com/), this course represents a revolutionary approach to chess instruction. The series spans tactics, strategy, openings, middlegame, and endgame, with content structured for learners at every stage—from beginners to advanced and professional players.

This comprehensive course helps you expand your tactical vision, master powerful combinations, and solidify your understanding through practical application. Whether you're sharpening your skills for tournament play or aiming to突破 to a higher rating, ECC vol. 2 provides the perfect training ground.

The program acts as your personal coach, offering carefully graded tasks and intelligent support when you're stuck. It provides hints, detailed explanations, and even demonstrates striking refutations of incorrect moves, helping you learn from mistakes in real time.

A built-in theoretical section complements the practical puzzles, explaining key tactical methods using real-game examples. The theory is presented interactively—allowing you not only to read but also to play through variations and analyze critical positions directly on the board.

Key Features of the Program:

♔ 1000 high-quality, double-checked puzzles for ELO 2200
♔ Full move entry required—only the precise solution counts
♔ Multiple difficulty levels to match your progress
♔ Diverse objectives in each exercise (win material, checkmate, etc.)
♔ Instant hints on errors
♔ Refutation lines shown for common mistakes
♔ Ability to play out any position against the built-in engine
♔ Interactive theoretical lessons with moveable board
♔ Well-structured table of contents for easy navigation
♔ Real-time ELO rating tracking as you improve
♔ Customizable test mode with adjustable settings
♔ Bookmark favorite exercises for later review
♔ Optimized for tablets with larger screens
♔ Works offline—no internet connection required
♔ Sync progress across devices via a free Chess King account (Android, iOS, Web)

The course includes a fully functional free version so you can try before you buy. The free lessons allow you to experience the app’s capabilities in real conditions. Topics included in the free section:

1. Annihilation of Defence
2. Blockade
3. Clearance
4. Deflection
5. Discovered Attack
6. Pinning
7. Demolition of Pawn Structure
8. Decoy
9. Interference
10. Double Attack

What's New in Version 2.4.2

Last updated: Jul 12, 2023
• Introduced Spaced Repetition training mode—combines previously missed exercises with new ones, delivering an optimized puzzle set for long-term retention.
• Added option to run tests using bookmarked puzzles.
• New daily puzzle goal feature—set your target number of puzzles to maintain peak form.
• Added daily streak counter—track how many consecutive days you've met your goal.
• Various bug fixes and performance improvements

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