Chess - tChess Pro

Chess - tChess Pro

For beginners to professionals


2.0.0for iPhone, iPad and more
224 Ratings
Tom Kerrigan
7.8 MB
Nov 5, 2008
Update Date
Age Rating
Age Rating
Apps in this category do not contain restricted content.
Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.
Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.
You must be at least 17 years old to access this App.
Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.
Chess - tChess Pro Screenshots
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About Chess - tChess Pro

tChess Pro is the high-quality, critically acclaimed chess game with the richest features for the iPhone, iPod touch, and iPad. It's perfect for every player:

Not everybody is a chess master! Most chess games are too strong or just make random mistakes at easier levels. tChess Pro has unique algorithms to simulate human opponents.

tChess Pro has a top-tier chess engine. (Over 380 ELO points stronger than Caissa Chess.)

tChess Pro's Analysis Mode is like having a chess master in your pocket. You can get the engine's "expert opinion" about any game or position in real-time: which side is winning, and the best sequence of moves. Just like a professional desktop chess package.

More key features:
- Perfect for 1- or 2-player games
- Strong computer opponent
- Play against any ELO rating from 500 to 2500
- Integrated "Learn Chess" e-book app (Apple Staff Favorite!)
- Opening Library feature lets you explore chess opening theory as you play
- PGN Database feature lets you download and view PGN files
- Support for 3-stage time controls with Fischer increments
- Position Editor to enter positions from books, newspapers, etc.
- Save and load games; export them in standard PGN format
- Use the Profile feature to play rated games against the computer and track your progress

tChess Pro is developed by Tom Kerrigan, author of the TSCP and Stobor chess engines.
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What's New in the Latest Version 2.0.0

Last updated on Jul 3, 2022
Old Versions
- Added a button to rotate the board in the Analyze Game feature
- Added the ability to review your opponent's last move if he requests a takeback
- Added a "Saved Time Controls" feature
- Added a setting to control the sound volume (in the Interface tab)
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Version History
Jul 3, 2022
- Added a button to rotate the board in the Analyze Game feature
- Added the ability to review your opponent's last move if he requests a takeback
- Added a "Saved Time Controls" feature
- Added a setting to control the sound volume (in the Interface tab)
Dec 13, 2020
- Fixed a problem with opening PGN attachments

Aug 26, 2020
- Fixed a bug that was making it difficult to tap the Annotations (pencil) button
Aug 5, 2020
- Users can now choose to store PGN files in local storage or in iCloud Drive
- Removed the previous system of synchronizing PGN files via iCloud
May 19, 2020
- Fixed a bug with the "Edit Position" feature
May 17, 2020
- NOTE: This version removes the old system for playing online games and chatting with online opponents. If you're still playing games using the old system, please finish those games and switch to the new system. (You were told this transition was going to happen more than a year ago.) The new system is called "Play online" and is accessed via the cloud button on the main toolbar.

- Added support for Dark Mode
- Added support for split-screen mode on the iPad
- Increased the size of the opening library to 75,000 moves
Apr 7, 2019
- Fixed a bug where some "Play online" games could get unsynchronized and stuck
- Added a message to explain that "Play online" games are not necessarily real-time
Apr 5, 2019
- This update adds a new system for playing online. You can access it by tapping on the cloud button on the main toolbar. It should be much easier to use and more reliable than the old system. The old system is still included, so if you have active games, you can finish them. But it will be removed in a future version of tChess. I hope you enjoy the new system!
Jan 10, 2018
- Support for the iPhone X screen resolution and layout
- Bug fixes
Sep 22, 2017
- Fixed a problem with the "Edit Position" feature
Sep 17, 2017
- Updated for iOS 11
Aug 4, 2015
- New "Analyze Game" feature: see an overview of the entire game in seconds
- Native support for the iPhone 6/6+ screen resolutions
- New "Benchmark" feature: measure your iOS device's performance
- Optional "Revert" toolbar button
- Optional "New game" toolbar button
Dec 3, 2013
- New “Toolbar buttons” feature allows you to customize the main toolbar
- New (optional) Game Center toolbar button allows you to quickly access the list of turn-based Game Center games
- Fixed a bug that was causing Profile information to be deleted in some cases
- Fixed a bug that was causing tChess to crash in some cases when submitting Game Center moves
- Compatible with PGN files that don’t have spaces between move numbers and moves
- Time controls now carry over to new games
- Shortcut in the Annotation menu allows you to enter a new annotation with one tap
Sep 26, 2013
- Added a "Dark background" option in the Appearance menu
- Fixed a problem with the PGN Database feature that prevented the "Open games at beginning" option from working and that prevented the previous/next game buttons from working
Sep 18, 2013
- Redesigned to match Apple's latest design language!
tChess has a new look, but retains its "classic" look on older versions of iOS.

- All-new support for PGN, including variations!
- New move annotation viewer/editor supports multiple annotations, variations, and NAGs per move
- Support for nested variations (variations within variations)
- New PGN tag editor supports arbitrary tags
- New time control editor
- Supports an unlimited number of saved games
Jun 27, 2013
- Self-play mode
- Playback mode
- Export to camera roll
- Printing (via AirPrint)
- Remembers which game is selected in each PGN file
- Can play against any other version of tChess (Lite, Pro, etc.) via Game Center
- Ability to send messages to Game Center opponents
- Added the back and forward toolbar buttons during Game Center games
- Improvements to the engine; now much better at finding optimal checkmates
Feb 20, 2013
- Support for iCloud to synchronize PGN files (requires iOS 6.0 or newer)
- Option to sort saved games alphabetically
- Ability to search PGN files by tChess saved game name
- Feature to revert to a PGN game
- Option to give imported PGN files unique filenames if there's a conflict
- Feature to rename PGN files
- Improvements to the chess engine
Sep 27, 2012
- Support for the iPhone 5's new screen size and iOS 6
- Learn Chess is now full-screen on the iPad
- Option to flip all the pieces when it's black's turn (for two-player games)
- Option to use the hint button to toggle Analysis Mode
- New menu to set defaults for saving and exporting games (default recipient, etc.)
- Saves all rated games to "rated_games.pgn"
- Support for complete Forsyth-Edwards Notation
Mar 27, 2012
- Support for the new iPad's Retina Display
- Optimized 3-D engine (over 3 times faster!)
- Redesigned menu system
- Online play (Game Center) improvements
Nov 3, 2011
- Added support for German, French, Japanese, Korean, and Chinese
Oct 7, 2011
- Added support for turn-based Game Center (new for iOS 5)!
- Added support for annotations in PGN files.
- Updated the interface for selecting PGN files (and removed the 25 file limit).
Apr 28, 2011
- Added Game Center support. Play chess with your friends in real time!!

- Added support for dual-core processors (iPad 2). Enable it in the Settings menu and Analysis Mode will calculate 50-80% faster!
Jan 11, 2011
- Automatically exports all saved games to "saved_games.pgn" (iTunes file sharing)
- Pauses the chess clock when tChess isn't the active app
- Improved compatibility with the PGN file format
- Fixes an orientation/rotation problem with iOS 4.2.1 on the iPad
Oct 19, 2010
New for iOS 3.2 and up:
- Ability to open chess game (PGN) file attachments
- Support for iTunes File Sharing

New for every iOS version:
- Improved variability of opening moves
- New Position Editor options
- New Database options
- New editor for PGN tags
- Exports games as PGN file attachments
- Improved performance for iOS 4
Jun 23, 2010
- Support for iOS 4.0
- Support for Retina Display
- Replaced 2-D Staunton pieces with high-resolution photorealistic raytraced pieces
- Improved animation smoothness
- Adjusted engine strength vs. rating
- Improved engine strength in endgame
- Increased maximum number of PGN files

Chess - tChess Pro FAQ

Chess - tChess Pro is available in regions other than the following restricted countries:
Chess - tChess Pro supports English, French, German, Japanese, Korean, Simplified Chinese
Click here to learn how to download Chess - tChess Pro in restricted country or region.
Check the following list to see the minimum requirements of Chess - tChess Pro.
Requires iOS 15.0 or later.
Requires iPadOS 15.0 or later.
iPod touch
Requires iOS 15.0 or later.

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