# Doctor Chess — Official FIDE rules · Online

> Official FIDE rules chess app with AI and online multiplayer. (iPhone/iPad app by Lim Sangjin.)

- Source: https://appshunter.io/ios/app/doctor-chess/id6766081915 (this page in markdown: same URL + `.md`)
- Developer: [Lim Sangjin](https://appshunter.io/developer/1437057653)
- Category: Games, Board, Strategy
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 21 MB
- Languages: American English, Japanese, Korean, Russian, Chinese (Simplified, China), Chinese (Traditional, Taiwan), Vietnamese
- Released: 2026-05-05
- Data updated: 2026-09-06
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/doctor-chess/id6766081915/reviews.md

## What is Doctor Chess?

Doctor Chess brings the full FIDE rule set to your phone and tablet — castling, en passant, promotion, threefold repetition, the 50-move rule, and insufficient material draws are all enforced.

• Single player — local pass-and-play plus five AI tiers (Beginner / Intermediate / Advanced / Expert / Master)
• Master tier uses iterative-deepening alpha-beta search with quiescence, null-move pruning and late-move reduction
• Online 1v1 — turn-based matches via Apple Game Center, no sign-up required
• Friend invites through the system Game Center picker
• OS-native leaderboards and achievements
• 40 languages — Korean, English, Japanese, Chinese (Simplified/Traditional), Spanish, French, German, Italian, Portuguese, Russian, Vietnamese, and many more
• Tap or drag to move, automatic promotion dialog, last-move highlight, legal-move dots

No sign-up. No ads. No tracking. No in-app purchases.

## Key features

- Full FIDE rule set enforcement
- Five AI difficulty tiers
- Online 1v1 matches via Game Center
- No sign-up required
- Ad-free and tracking-free
- 40 language support

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/doctor-chess/id6766081915/reviews.md

### 5/5 — 광고없음

*2026-05-05*

진짜로 광고가 없어서 좋아요

## Frequently asked questions about Doctor Chess

### Does Doctor Chess have ads?

No, Doctor Chess is ad-free. The app explicitly states 'No ads' in its description, ensuring an uninterrupted gaming experience.

### How many AI difficulty levels does Doctor Chess offer?

Doctor Chess features five distinct AI difficulty tiers: Beginner, Intermediate, Advanced, Expert, and Master, catering to a wide range of player skills.

### Can I play Doctor Chess offline?

Yes, Doctor Chess supports single-player local pass-and-play, allowing you to play against the AI without an internet connection.

### Is Doctor Chess free to play?

Yes, Doctor Chess is completely free to download and play. The app also states 'No in-app purchases', meaning there are no hidden costs.

### What devices does Doctor Chess support?

Doctor Chess is available on iPhone, iPad, and iPod devices, making it accessible to a broad range of Apple users.

### How often is Doctor Chess updated?

The latest version of Doctor Chess is 1.1.1, which was last updated on June 11, 2026. This indicates a recent update, suggesting ongoing support.

### Does Doctor Chess require an account to play online?

No, Doctor Chess allows for online 1v1 matches via Apple Game Center without requiring any sign-up or account creation.

### What special chess rules does Doctor Chess enforce?

Doctor Chess enforces all official FIDE rules, including castling, en passant, promotion, threefold repetition, the 50-move rule, and insufficient material draws.

## Version history (last 5 releases)

### 1.1.2 — 2026-07-22

v1.1 — i18n expansion. Now fully translated in 34 languages covering the App Store's top 40 countries. Default app language switched to English. Polish across game, review, puzzles, online, and learn screens.

### 1.1.1 — 2026-06-11

Added 20 advanced mate puzzles covering back-rank, queen-rank, king-supported rook, and smothered mate patterns.

### 1.1.0 — 2026-05-08

v1.1 — i18n expansion. Now fully translated in 34 languages covering the App Store's top 40 countries. Default app language switched to English. Polish across game, review, puzzles, online, and learn screens.

### 1.0.1 — 2026-05-07

기본 언어를 한국어로 변경했습니다. 안정성 및 호환성을 개선했습니다.

### 1.0 — 2026-05-05

No release notes.

## More apps by Lim Sangjin

- [Gomoku Pro+](https://appshunter.io/ios/app/gomoku-pro-plus/id6762632244)
- [Block Pang](https://appshunter.io/ios/app/block-pang/id6764856637)
- [Old Film](https://appshunter.io/ios/app/old-film/id6764856658)
- [Janggi Pro](https://appshunter.io/ios/app/janggi-pro/id6766077809)
- [Doctor Go](https://appshunter.io/ios/app/doctor-go/id6766081867)

All apps by Lim Sangjin: https://appshunter.io/developer/1437057653

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*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 2026-09-06.*