Suguru: Number Logic Puzzle
Guess-free tectonic brain game
Only for iPhone
Free · In‑App Purchases
iPhone
The same number can't touch — not even diagonally. Fill each little room with 1…n and solve by pure logic. Every puzzle is solvable with no guessing.
Place a number in every little room.
The same number can never touch — not up, down, across, or diagonally.
That's the whole rule. And it runs surprisingly deep.
Suguru (also known as Tectonic) is a number-logic puzzle played on a grid split into rooms. A room of size n holds 1…n, once each. And no two matching numbers may sit next to each other in any of the eight directions. That one twist — no diagonal neighbours either — gives Suguru a softer, different feel from sudoku.
Best of all, every Suguru here comes with one promise: it's always solvable by pure logic, with no guessing. No placing a number on a hunch and watching it all collapse. Just the quiet satisfaction of narrowing things down, one certain square at a time.
■ Features
A logic rule all its own: no matching neighbours, diagonals included
Every puzzle solvable by logic — zero guessing, never stuck
Four sizes: 5×5, 6×6, 7×7, 8×8
A fresh Daily puzzle, with a solving streak
Pencil notes, hints, and undo
Stats: best times, streaks, and solves by difficulty
A calm design in traditional Japanese colours
English and Japanese
Fully offline. No account needed
■ Great for you if…
You love sudoku but want a fresh next puzzle
You'd rather deduce than guess
You want a quiet way to use your mind in spare minutes
You prefer calm, uncluttered puzzle apps
You'd like a small daily brain workout to keep up
■ Privacy & peace of mind
Suguru runs fully offline, with no server. Your records stay on your device only — no account, no sign-in. Ads are served non-personalized (no tracking).
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The developer, torankirite, 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
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Information
- Seller
- torankirite
- Size
- 3.7 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Premium $4.99
- Copyright
- © 2026, Torankirite