# Encyclopedia 1 by Informant — Chess Training

> Chess combination training app for players rated ELO 2000. (iPhone/iPad app by CHESSQUEEN INC.)

- Source: https://appshunter.io/ios/app/encyclopedia-1-by-informant/id1256484830 (this page in markdown: same URL + `.md`)
- Developer: [CHESSQUEEN INC](https://appshunter.io/developer/1096660597)
- Category: Games, Education, Board, Puzzle
- Price: Free with in-app purchases
- Rating: 4.90/5 from 50 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 44 MB
- Languages: American English, Dutch, French (France), German (Germany), Greek, Italian, Polish, European Portuguese, Romanian, Russian and 4 more
- Released: 2017-07-08
- Data updated: 2026-06-01
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/encyclopedia-1-by-informant/id1256484830/reviews.md

## What is Encyclopedia 1 by Informant?

Encyclopedia of Chess Combinations vol. 1 (ECC vol. 1) is the ultimate educational tool with systematic, carefully selected content for player with ELO 2000. The material is based on the latest edition of the eponymous bestselling book released by Chess Informant. This volume contains chess combination of Basic Level (ELO 2000) for solving, all hand-picked and sorted by theme to provide the most exciting and efficient training experience possible! Unlike disorganized, basic tactics you can learn all over the Internet, this Chess Sphinx will challenge you consistently and systematically, unveiling new intricacies right when you decide you have mastered that particular tactic.

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.

The program also contains a theoretical section, which explains the methods of the game in a certain stage of the game, based on actual examples. The theory is presented in an interactive way, which means you can not only read the text of the lessons, but also to make moves on the board and work out unclear moves on the board.

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. 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

## Key features

- Systematic chess combinations
- Interactive lessons and explanations
- Hints and mistake refutations
- Theoretical sections with interactive play
- Progress monitoring (ELO rating)
- Offline play
- Tablet optimized

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Full Course | $9.99 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/encyclopedia-1-by-informant/id1256484830/reviews.md

### 5/5 — Chess king

*2020-03-16*

Great App, real tactics from actual proper world level games.

### 5/5 — Nicely done!

*2017-09-03*

Been out of tournament chess for about 30 years. This, and the really brilliant endgame app from this same company, have been gently bringing back chess to my mind. I'm very happy with this!

## Frequently asked questions about Encyclopedia 1 by Informant

### What is the target ELO for Encyclopedia 1?

Encyclopedia 1 is designed for chess players with an ELO rating of approximately 2000. It focuses on basic level combinations and tactical training suitable for this skill range.

### Does Encyclopedia 1 require an internet connection?

No, the application does not require an internet connection to function. All content and features are available offline, making it convenient for training anywhere.

### How does Encyclopedia 1 help improve chess skills?

It provides systematic, carefully selected chess combinations sorted by theme for efficient training. The app offers hints, explanations, and refutations for mistakes, acting like a personal coach.

### Can I try Encyclopedia 1 before buying?

Yes, the course includes a free part with fully functional lessons. This allows you to test the application's features and training methods in real-world conditions before purchasing additional topics.

### What kind of content is included in Encyclopedia 1?

The app contains chess combinations for solving, categorized by theme such as Annihilation of Defence, Blockade, Clearance, and Deflection. It also features interactive theoretical lessons explaining game methods.

### Does Encyclopedia 1 track my progress?

Yes, the program monitors the change in your ELO rating during the learning process. This feature helps you see your improvement over time as you complete exercises.

### What devices is Encyclopedia 1 compatible with?

Encyclopedia 1 is adapted for larger screens and is compatible with iPhones and iPads. It is designed to provide a good user experience on tablet devices.

### How often is Encyclopedia 1 updated?

The latest version of Encyclopedia 1 is 1.2, which was last updated on February 2, 2018. Updates typically include bug fixes and content refinements.

## Version history (last 3 releases)

### 1.2 — 2018-02-02

This app has been updated by Apple to display the Apple Watch app icon.

• App is updated for iPhone X
• New home screen
• Animated playback of theory with sound
• Date of reading the theory
• Disabled automatic playback of refutations
• Option to reset password
• Renaming of account
• Various fixes and improvements

### 1.0.5 — 2017-08-16

• Added German, Italian, Chinese, Spanish, Dutch, Portuguese, French, Polish, Romanian translations 
• Various fixes and improvements

### 1.0.4 — 2017-07-08

No release notes.

## Apps similar to Encyclopedia 1 by Informant

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Mate in One Move. Chess Puzzle](https://appshunter.io/ios/app/mate-in-one-move-chess-puzzle/id558485476) | 4.2 (21) | Free | Games |
| [Openings Mastermind](https://appshunter.io/ios/app/openings-mastermind/id6448386251) | 4.0 (4) | Free | Games |
| [Pulsar Chess Engine](https://appshunter.io/ios/app/pulsar-chess-engine/id839640447) | 4.3 (12) | $0.99 | Games |
| [Chess Puzzles Tactics Training](https://appshunter.io/ios/app/chess-puzzles-tactics-training/id6480381614) | 4.6 (202) | Free | Games |
| [Chessvis](https://appshunter.io/ios/app/chessvis/id1229226444) | 4.4 (21) | Free | Games |
| [Grandmaster Chess - Play as GM](https://appshunter.io/ios/app/grandmaster-chess-play-as-gm/id6446227773) | — | Free | Games |

## More apps by CHESSQUEEN INC

- [Chess: From Beginner to Club](https://appshunter.io/ios/app/chess-from-beginner-to-club/id1102354875)
- [Mate in 1 move (Chess Puzzles)](https://appshunter.io/ios/app/mate-in-1-move-chess-puzzles/id1120115215)
- [Chess Middlegame II](https://appshunter.io/ios/app/chess-middlegame-ii/id1121655684)
- [Chess Strategy for Beginners](https://appshunter.io/ios/app/chess-strategy-for-beginners/id1121720375)
- [Chess Tactics Art (1400-1600)](https://appshunter.io/ios/app/chess-tactics-art-1400-1600/id1122456569)
- [Chess Tactics Art (1600-1800)](https://appshunter.io/ios/app/chess-tactics-art-1600-1800/id1122516529)

All apps by CHESSQUEEN INC: https://appshunter.io/developer/1096660597

## Related topics

[encyclopedia 1 by informant](https://appshunter.io/ios/topics/encyclopedia-1-by-informant)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*