How to Play Suguru
Overview
Suguru (also called Tectonics) is a logic puzzle where you fill regions with digits. Each region of size N contains digits 1 to N, and no two adjacent cells (including diagonals) can contain the same digit.
Video Tutorial
Rules
- 1The grid is divided into regions marked by thick borders.
- 2A region of size N contains digits 1 to N (e.g., 3-cell region has 1, 2, 3).
- 3No two adjacent cells can have the same digit (8-way adjacency).
- 4Prefilled cells are clues and cannot be changed.
8-Way Adjacency
Unlike Sudoku, Suguru checks all 8 directions - including diagonals:
↖
↑
↗
←
X
→
↙
↓
↘
Cell X cannot share its value with any red neighbor
Controls
ClickSelect a cell
1-5 KeysEnter a digit
P KeyToggle pencil mode
Ctrl+ZUndo last move
Solving Strategies
Small Regions First
Single-cell regions always contain 1. Two-cell regions have 1 and 2.
Adjacency Elimination
Cells next to a given digit cannot contain that same digit.
Hidden Singles
If a digit can only go in one cell within a region, place it there.
Use Pencil Marks
Note candidates and eliminate them as you solve other cells.