Sudoku Overview

Sudoku is a logic-based number puzzle game played on a 9×9 grid. The goal is to fill each row, column, and 3×3 box with digits 1-9 without repetition.

How to play: Start by identifying cells with only one possible number. Use elimination techniques to narrow down possibilities. Work systematically through rows, columns, and boxes.

Difficulty levels: SudokuPuzzles.net offers 8 difficulty levels from Easy to Insane, with progressive unlocking system for advanced challenges.

Printable & solver: Download free PDF puzzles for offline solving. Use our online solver to check solutions or get hints when stuck.

Sudoku Features

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Guide to Different Sudoku Variations - SudokuPuzzles.net

While classic 9x9 Sudoku is the most popular, there are many exciting variations that add new challenges and solving techniques. Killer Sudoku In Killer Sudoku, numbers in outlined regions must sum to the given total. This adds mathematical constraints to the puzzle. Samurai Sudoku Five overlapping 9x9 grids create a complex puzzle where the center grid shares rows and columns with the four corner grids. Diagonal Sudoku In addition to rows, columns, and boxes, the two main diagonals must also co...

This article covers Sudoku strategies, techniques, and tips. Learn how to improve your Sudoku solving skills with expert guidance from SudokuPuzzles.net.

Key Topics

  • Sudoku solving techniques and strategies
  • Pattern recognition and elimination methods
  • Advanced Sudoku solving approaches
  • Tips for improving Sudoku skills
  • Common Sudoku mistakes and how to avoid them
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Guide to Different Sudoku Variations - SudokuPuzzles.net

Explore different Sudoku variations beyond the classic 9x9 grid. Learn about Killer Sudoku, Samurai Sudoku, and more exciting variants.

While classic 9x9 Sudoku is the most popular, there are many exciting variations that add new challenges and solving techniques.

Killer Sudoku

In Killer Sudoku, numbers in outlined regions must sum to the given total. This adds mathematical constraints to the puzzle.

Samurai Sudoku

Five overlapping 9x9 grids create a complex puzzle where the center grid shares rows and columns with the four corner grids.

Diagonal Sudoku

In addition to rows, columns, and boxes, the two main diagonals must also contain all numbers 1-9.

Irregular Sudoku

Instead of 3x3 boxes, irregular regions of nine cells each must contain all numbers 1-9.

Windoku

Four additional 3x3 regions (windoku regions) must also contain all numbers 1-9.

Ready to Play?

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