Puzzle No.272

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

PUZZLE NO.272: QUADRUPLE SUDOKU


SOLUTION:

Puzzle No.267

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

PUZZLE NO.267: QUADRUPLE SUDOKU


SOLUTION:

Puzzle No.262

This is a Quadruple Sudoku made by Deb Mohanty.

PUZZLE NO.262: QUADRUPLE SUDOKU


SOLUTION:

Puzzle No.197

This is a Quadruple Sudoku.

PUZZLE NO.197: QUADRUPLE SUDOKU


SOLUTION:

Puzzle No.166

This is a Quadruple Sudoku made by Ritesh Gupta and Hitesh Gupta.

PUZZLE NO.166: QUADRUPLE SUDOKU


SOLUTION:

Puzzle No.159

This is a Quadruple Sudoku from Sudokucup 1 made by Karel Tesar.

PUZZLE NO.159: QUADRUPLE SUDOKU


SOLUTION:

Rules of 'Quadruple Sudoku'

Place numbers in the grid such that each row, column and 3x3 box contain the numbers 1 to 9. Each set of four small numbers in the intersection of two lines indicate the numbers that are in the four adjacent cells.

EXAMPLE:

UNIQUE SOLUTION: