Introduction

SUDOKU is the latest mind-boggling, brain-stimulating and highly interesting game, played throughout the world, across all ages. It is generally played on a 9 x 9 board ( having 81 squares). The rules for filling in the numbers are very simple. Each row must have all numbers from 1 through 9, each column must have all numbers from 1 through 9 and each small cell ( of size 3 x 3; the puzzle has 9 such small cells) must have all numbers from 1 to 9.

I have added an additional property to the existing ones – namely BOTH DIAGONALS ALSO CONTAIN numbers 1 to 9.

I have authored Sudokus of the following sizes:

• Sudoku 10 x 10 having 10,000 squares (this was hand-written!),
• Sudoku 11 x 11 having 14,641 squares
• Sudoku 15 x 15 having 50,625 squares
• Sudoku 18 x 18 having 1,04,624 squares
• Sudoku 20 x 20 having 1,60,000 squares

Sudokus

About 2D.Thoppaen Magic Multiple

Variations

Apart from the conventional Sudokus, I have also made a number of variations of Sudokus. A few of them are listed here:

• Sudoku for your year of birth
• Diagonal sudoku
• Multiplication sudoku
• Zero sudoku
• Fractional Sudoku
• Initial Encrypted Sudoku
• Sudoku with Square
• Sudoku with Magic Square
• Many other variants