Puzzle No.270

This is a Toroidal Sudoku from the Indian Sudoku Championship - 2010.

PUZZLE NO.270: TOROIDAL SUDOKU


SOLUTION:

Puzzle No.254

This is a Toroidal Sudoku from the Indian Sudoku Championship - 2009.

PUZZLE NO.254: TOROIDAL SUDOKU (1~8)


SOLUTION:

Puzzle No.237

This is a Toroidal Sudoku from the Japanese Sudoku Championship - 2007.

PUZZLE NO.237: TOROIDAL SUDOKU (1~7)


SOLUTION:

Puzzle No.236

This is a Toroidal Sudoku.

PUZZLE NO.236: TOROIDAL SUDOKU (1~7)


SOLUTION:

Rules of 'Toroidal Sudoku'

Place numbers in the grid such that each row, column and thick-outlined region contain the numbers 1 to 9. Some of the outlined regions will wrap between the top and bottom edges, and/or the left and right edges of the grid.

EXAMPLE:


UNIQUE SOLUTION: