How Suguru works
A puzzle made of small groups. Every group needs a full set of numbers, and numbers cannot sit next to their twins.
- Regions. Thick lines divide the grid into groups of one to five squares.
- Each region. A region of k squares contains each of the numbers 1 to k exactly once.
- Neighbours. A number may not touch the same number in any of the eight squares around it.
- Playing. Tap a square and choose its number. Some numbers are given at the start and cannot be changed.
Tips for Suguru
- Small regions first. A region of two squares holds only 1 and 2, so a given 1 tells you the other square at once.
- Mark the corners. A square next to a given 3 cannot be 3, even diagonally. Rule out candidates around every number.
- Look at the fives. In the biggest regions, each number can often fit in only one square.
- Use Check. It marks only the wrong numbers.
More puzzles to try
Frequently asked questions
What are the rules of Suguru?
Each region of the grid, outlined with a thick line, must contain each number from 1 up to the number of squares in the region. A region of four squares holds 1, 2, 3 and 4. The same number may not appear in squares that touch, horizontally, vertically or diagonally.
What is Suguru also called?
Suguru is also known as Tectonic or Number Blocks. The rules are the same.
How do you start?
Find a region of one square, which must be 1, or a region where only one square is left for a number. Then remember that the neighbours of a number, including the diagonals, cannot repeat it.
How big are the puzzles?
Easy is 5 by 5, medium is 7 by 7 and hard is 9 by 9. Regions have between one and five squares. Every puzzle has one solution.
How do I fill in a number?
Tap a square, then tap a number under the grid. The number keys on a keyboard work too, and the arrow keys move around the grid.
Is there a daily Suguru?
Yes. Press Daily for today's puzzle, the same for everybody, and sign in to add your time to the leaderboard.
Can I check my work?
Squares that break a rule turn red as you play. Check marks every wrong number, and Hint fills in one square.