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Every day there's a new board, the same for everyone. Line up three of your pieces — a "mill" — within the move limit to capture a piece and win. Solve it to keep your streak going. It resets at midnight your local time.

Your streak counts consecutive days you solved on the day itself. Miss a day and the streak resets. Replaying an older day from the archive doesn't repair a broken streak.

If you're signed in to iCloud, your streak, stats and puzzle progress sync privately through your iCloud account, so they're restored when you reinstall or move to a new device. Premium is tied to your Apple ID and is restored automatically (or with "Restore purchases").

An optional subscription (monthly or yearly) that removes ads and unlocks all 150 puzzles plus the full daily archive. The daily puzzle and the first ten puzzles are free forever. It auto-renews until cancelled; cancel anytime from your Apple ID settings.

Open Settings (the cog on the home screen) or the Premium screen and tap "Restore". This restores any Premium subscription linked to your Apple ID.

Each puzzle gives you two free hints that point to a good move. After that you can watch a short ad to unlock one more. Premium members skip the ad.

Yes — Merels works fully offline. The daily puzzle and all puzzles are generated on your device. (Ads and iCloud sync need a connection, but the game doesn't.)

Place all nine pieces, then slide them to neighbouring points. Line up three to capture one of the computer's pieces. You win by reducing it to two pieces — or by leaving it with no legal move.

Your progress stays on your device and in your own iCloud account — we don't run accounts or collect it. Ads are served by Google AdMob. See our full Privacy Policy.

Close and reopen the app, then restart your iPhone if needed. Make sure you're on the latest version from the App Store. If it persists, email us with your device and iOS version.