The Best Tips And Tricks For Solving Windoku Sudoku Puzzles

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Windoku Sudoku is a fun and challenging logic puzzle game.

It is perfect for anyone who wants to improve their problem-solving skills.

In this post, we will discuss how to play Windoku Sudoku and some of the best techniques for solving these puzzles.

Windoku, commonly named as the NRC Sudoku variation, Hyper(Su)Doku, or Sudoku Hyper, is a Sudoku version with one exception.

Windoku Sudoku is a logic puzzle similar to the popular Sudoku puzzles.

The difference with simple Sudoku is that Windoku puzzles have four overlapping Sudoku grids.

The purpose of the game is to fill in the empty squares with the beginning though 9 so that each digit only appears once in each row, column, and grid.

Windoku Sudoku

The game can be solved using logic alone, but it can also be helpful to use a sudoku solver to help you find the solution.

Strategies For Solving Windoku

Strategy 1:

Windoku is similar to simple Sudoku, but it has four new “cells” that we name “windows.”

Could it be true, or is it baseless?

These additional boxes place additional limitations on number positioning.

The numbers 1 to 9 must accommodate each of the 4 windows differently.

Consider the very first image that will help you.

It wouldn’t appear to be so much space on the sides or in the middle because all these windows take up so much space.

Each of the three blue ring groups in rows B, C, and D contains 9 cells.

So because numbers 1 to 9 repeatedly show in the ‘frames,’ they also must certainly fit inside the remaining cells in those rows.

Strategy 1 For Solving Windoku

Strategy 2:

If that is valid for those rows, and the issue is symmetric, it is also applicable for second-row F, G, and H and the column.

This logic’s additional frames were all filled in.

This means that you may think of them as different ‘boxes’ ranging from 1 to 9 and use any Sudoku strategy that depends on Sets and Locked Sets – which is very much close to every Sudoku technique.

Strategy 2 For Solving Windoku

Strategy 3:

What remains to be done?

In the last figure, there are 9 cells left that are highlighted in red.

Such cells need not relate to any of the windows so far, and because these are just 9 of them, they create the ultimate ‘window’ form.

It relates to the very first set in the Color Sudoku puzzle.

Strategy 3 For Solving Windoku

How to Play Windoku Sudoku:

There are several strategies you can use to solve Windoku Sudoku puzzles, a few of them are below:

  • One strategy is to start by filling in the easiest cells, which are the ones with only one possible solution. You can then work your way through the puzzle using the clues provided.
  • Another strategy is to focus on one column or row to check relevancy.
  • The digits in each row or column must be placed in ascending order.
  • In addition, the digits within each box must be placed in ascending order.
  • The difficulty of Windoku Sudoku puzzles lies in the fact that the same digit may appear more than once in a given column, row, or box. For example, the number 1 may appear twice in a row or three times in a box.

Rules for Windoku Sudoku

A few rules make playing Windoku Sudoku a bit more challenging.

The rules are very simple.

  • First, unlike standard Sudoku, you cannot repeat numbers in any row, column, or 3×3 box.
  • Second, you cannot have two of the same number in any Box for Repeat.
  • Fill in the empty cells with the numbers 1 through 9 so that the numbers 1 through 9 show exactly once for each column, row, and 3×3 box.
  • The numbers in a cell must be unique and cannot be duplicated in any other cell in the same row, column, or 3×3 grid.
  • The numbers can be repeated within a row, column, or 3×3 grid, but not within a single cell.

Techniques for Solving Windoku Sudoku

There are a few techniques that can help when solving Windoku Sudoku puzzles.

  • Solving Windoku Sudoku is to start by filling in the numbers 1 through 9 in the first column.
  • The 2nd technique is to identify the cages.
  • In Windoku puzzles, the cages are the areas that are surrounded by thick lines. The numbers in these cages must be the same.
  • The third technique is to use the Domino Rule. The Domino Rule states that “if two numbers are in the same row and column, and the number in the column is immediate to the right of the number in the row, then those two numbers can be combined into one number.”
  • Fourth is to look at the 2nd row and find the number in the same column as the number in the 1st row and the same row as the number in the 3.

Types of Windoku Sudoku

There are 4 types of Windoku Sudoku: Classic, X-Wing, Swordfish, and Rectangular.

Classic Windoku Sudoku

It is the most popular type.

It’s a 9×9 grid with 16 squares in each row and column.

There are 36 boxes in the grid, and each box must contain one of the numbers 1-9.

Simply fill in the squares so that all digits 1-9 are present in each row, column, and 9×9 box.

Some squares already contain numbers, and these squares are typically highlighted in a different color.

The most essential rule to understand is that no number can occur more than once in any row, column, or 3×3 box.

This rule can be used to determine which squares must contain which numbers.

Classic Windoku Sudoku


It is a special type of Windoku Sudoku.

In an X-Wing Sudoku, two rows or columns intersect in two places.

The numbers in these intersecting rows or columns form an X pattern. If you can see an X pattern, you can eliminate it.

X-Wing Sudoku is a logic puzzle that is played on a 9×9 grid, divided into nine 3×3 boxes.

In the standard Sudoku game, each row, column, and the box must contain the numbers 1 through 9.

The key to X-Wing Sudoku is to identify pairs of numbers in the grid-connected by a common column or row.

The numbers can be eliminated from the grid when these pairs are identified, leaving only the remaining numbers.

X-Wing (Type of Windoku Sudoku)

Windoku Swordfish Sudoku

It is a new and challenging variation of the popular logic puzzle Windoku.

In Swordfish Sudoku, the grid is split into nine mini-grids, or swordfish, each containing a number in the grid. The number in each swordfish must be unique.

The purpose of this puzzle is to fill in the numbers in the swordfish so that the sum of the numbers in each row, column, and diagonal is the same.

In addition, the numbers in each swordfish must be different from the numbers in all of the other swordfish.

Swordfish Sudoku is a logic puzzle game where you have to place numbers 1-9 in the grid so that each row, column, and 3×3 box contains all of the numbers once and only once.

Windoku Swordfish Sudoku

Rectangular Windoku Sudoku

It is a new and unique type of Windoku Sudoku perfect for people who want a more challenging puzzle to solve.

The grid in Rectangular Sudoku is rectangular instead of square, making the puzzle much more difficult.

The goal of Rectangular Sudoku is to fill in the empty cells so that each column, row, and diagonal contains the numbers 1 through 9 exactly once.

There are 72 empty cells in the grid, and there is only one solution.

Rectangular Sudoku is easy to learn but a difficult master logic puzzle.

The game’s goal is to fill a 9×9 matrix with numbers so that each column, row, with each of the nine 3×3 boxes has all of the starting from 1 to 9.

Rectangular Windoku Sudoku

The game can be played on paper or on a computer.

On paper, draw a 9×9 grid and use a pencil to fill in the digits 1-9.

You can use the mouse or arrow keys to move the cursor around the grid on a computer.

Tips for Solving Windoku

There are a few simple tips that can make playing Windoku Sudoku much easier:

  1. Look for cages (cells) that have only one number left. These cages are called singles. Start with a cage that contains the numbers 1 through 4. You can use any of the methods described below to help you do this.
  2. Next, find the number 6. It can only go in two places: the cell in the lower-left corner of the upper-right corner.
  3. Fill in the lower order.
  4. Start by filling in the easy squares. This will help you get a feel for the game and give you a few starting points.
  5. Look for patterns and make logical deductions. For example, if a number is repeated in two different squares, it’s likely that you just have to Remove Duplication.

Broken Windoku


Windoku Sudoku is a great puzzle game for anyone who wants to improve their logic skills.

This article shows you how to play the game and provides some helpful tips to make you a master of Windoku Sudoku.

Follow us for tips and tricks if you’re ready to start playing.


In this article, we taught you how to play Windoku Sudoku.

This game is a fun and challenging version of the classic Sudoku puzzle.

Follow us to get more tips and tricks for playing Windoku Sudoku and other puzzles.

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