LIVE EVENT
Fork Tactics Challenge
Sharpen your tactics with forks and double attacks. The Fork pattern is unlocked for everyone during the event!
Chess Puzzles: Tactics Trainer
Improve Skills & Rating Daily
Only for iPhone
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Turn every puzzle into progress. Train with 5M+ puzzles from real games, personalized to your level. When you make a mistake, understand why - and learn from it. That’s the idea we built this app around.
Solving more puzzles is useful, but we wanted training to be about more than getting a position right or wrong. We wanted every puzzle to teach you something - about the move you missed, the pattern you didn’t recognize, or the way you calculated the position.
There are more than 5 million puzzles from real games. But the number itself isn’t really the point. What matters is finding the right positions for you, at the right difficulty, and helping you learn from them. When you make a mistake, you can understand why. Use hints, explore better moves, get coaching, and look deeper into the position instead of simply moving on to the next puzzle.
Over time, your training starts to reveal which tactical patterns give you the most trouble. You can practice across 64 motifs and patterns - forks, pins, sacrifices, checkmates, endgames, and many more - and spend more time on the ideas that need it. You can also see how your training develops over time: your rating, accuracy, training time, and performance across different patterns.
And when you’re ready for something truly advanced, there are more than 300,000 composed chess problems from solving competitions. They’re difficult, precise, often beautiful - and solving them can be one of the most satisfying forms of chess training.
We’ve also tried to make this a place you’ll actually want to come back to. Solve a few puzzles when you have five minutes. Sit down for a longer session when you feel like training seriously. Build a streak, reach a milestone, or simply keep showing up.
Whether you’re new to tactics or have been playing chess for years, the goal stays the same:
Learn something from every puzzle. Play better chess.
And we’re here to help you along the way.
Privacy Policy: https://chess.phd/privacy/
Terms of Use: https://chess.phd/terms/
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The developer, Sergei Tovmasian, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Contact Info
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Sergei Tovmasian
- Size
- 117.7 MB
- Category
- Puzzle
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
English and 3 more
- English, French, German, Russian
- Age Rating
4+
- 4+
- Infrequent
Contests
- In-App Purchases
Yes
- Premium Weekly AED 14.99
- Chess.PhD Premium (1 Year) AED 199.99
- Chess.PhD Premium (1 Month) AED 39.99
- Chess.PhD Premium (1 Year) AED 199.99
- Chess.PhD Premium (1 Year) AED 199.99
- Chess.PhD Premium (1 Week) AED 19.99
- Chess.PhD Premium (1 Week) AED 19.99
- Chess.PhD Premium (Lifetime) AED 599.99
- Premium Annual AED 249.99
- Premium Annual AED 149.99
- Copyright
- © 2025 Sergei Tovmasian