Suguru

About Suguru

Free online Suguru (Number Blocks) logic puzzle with 30+ handcrafted levels, daily challenges, hints, undo/redo, pencil marks, and star ratings.

Description provided by GameZipper.

How to play

1. The grid is divided into colored regions of varying sizes (1-5 cells). Each color represents a separate region.
2. A region of size N must contain all digits from 1 to N exactly once. A single-cell region always contains 1.
3. No two identical numbers may touch each other — not horizontally, vertically, or diagonally. This is the key constraint.
4. Start with cells that have only one possible value. Use pencil marks to track candidates. Each puzzle can be solved through pure logic.
5. Fill every cell so that all regions and adjacency constraints are satisfied. Earn 1-3 stars based on your speed and hint usage.

Controls

This game supports touch, keyboard, mouse input; the exact controls are explained inside the game.

Questions

What is Suguru?

Suguru is a Japanese logic puzzle where the grid is divided into irregular regions. Each region of size N must contain digits 1 through N, and no two identical numbers may touch, even diagonally.

How is Suguru different from Sudoku?

Unlike Sudoku which uses rows, columns, and boxes, Suguru uses irregular regions of varying sizes. The key difference is that in Suguru, no two identical numbers can be orthogonally OR diagonally adjacent.

What are the rules of Suguru?

1) The grid is divided into irregular regions of sizes 1-5. 2) Each region of size N contains digits 1 to N exactly once. 3) No two identical numbers may touch orthogonally or diagonally. 4) Every puzzle has a unique solution.