Chess64
Checkmate puzzle trainer
Free · In‑App Purchases
Every position has a forced mate. Your job is to see how far ahead it runs. Eight depths, a daily puzzle, and a review schedule for catching patterns before they fade.
Chess64 is a checkmate trainer. It never asks you for the best move, only for the forced one: every puzzle ends in mate, and the whole difficulty is how deep the line runs and whether you can see all of it before you touch a piece.
WHAT YOU GET
• Eight depths, from a one-move mate to the long forcing lines of mate in 8+. The app carries 400k+ puzzles, completely offline, with 50,000 at every depth. Each one is generated for this app and verified by a chess engine, so the mate is forced and runs to exactly the depth stated. (What the free tier reaches is set out under FREE AND PRO below.)
• Spaced-repetition training. A puzzle you have solved comes back at growing intervals, timed to reach you just before the pattern would have faded. You set how many new puzzles and how many reviews you want in a day.
• A daily puzzle: one mate in 3, the same position for everyone, every day.
• A timed challenge: solve as many as you can before the clock runs out. Three wrong moves retire a puzzle and the next one arrives.
• Statistics that keep accuracy and solve rate apart instead of blurring them together, plus an activity calendar, results by depth, time-of-day performance, and the depths you are weakest at. Export all of it as CSV (Pro).
• Home-screen widgets: your streak at a glance, plus quick actions on the medium size.
WHAT IT DOES NOT DO
No ads. No tracking, no analytics, no third-party data collection of any kind. No account, no sign-in, no email address. Chess64 never asks to track you across apps. The daily reminder stays off until you turn it on, and you choose the days and the time, so nothing arrives unannounced.
FREE AND PRO
Free covers mate in 1 and mate in 2, with 5,000 puzzles at each of those two depths, plus the daily puzzle, streaks, badges, core statistics and the streak widget. No ads and no time limits.
Chess64 Pro is one purchase, not a subscription. It unlocks mate in 3 to 8+ with the full 50,000 puzzles at every depth, a difficulty filter from Beginner to Master, the timed challenge, spaced-repetition training, hints, full statistics with CSV export, and the medium widget. Later updates are included. The price is shown in the app and on the App Store in your own currency.
YOUR DATA
There are no Chess64 servers. Your progress backs up to your own private iCloud, comes back when you sign in on a new device, and syncs across your devices without passing through anything in between.
Turn iCloud off, or use no iCloud account at all, and Chess64 works the same way it always does; your progress simply stays on the one device.
Every puzzle ships inside the app, so once you are set up you can play with no connection at all.
Terms of Use: https://chess64.app/terms
Privacy Policy: https://chess64.app/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Eljin Ltd, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Eljin Ltd
- Size
- 204.4 MB
- Category
- Board
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later.
- iPhone
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Chess64 Pro $6.99
- Copyright
- © 2026 Eljin Ltd