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DualDoku*

Number Puzzles

by Peter Grabarchuk**

Printable Puzzle
 
One more puzzle of the 2nd World Sudoku Championship held in Prague on March 28 -- April 1, 2007.

The big grid consists of two partially overlapped 9x9 sub-grids. Fill in the whole grid with numbers 1 through 9 (one number per cell) so that in both 9x9 sub-grids each horizontal line, each vertical line, and each of their respective nine 3x3 squares (outlined with the bold lines) must contain all the nine different numbers 1 through 9.

To solve the puzzle you may want to print just the above grid. For this click the image of the grid to go to a new window with this grid; then you can print it out.

Note that you can print the puzzle for your own use only, and not for any kind of commercial profit.
 
*) Puzzle concept: Copyright 2007 Peter Grabarchuk. All Rights Reserved.
**) Peter Grabarchuk is the author of this original Sudoku variant. Its name and appearance are the original creations first published at the 2nd World Sudoku Championship, Prague, March 28 -- April 1, 2007.
 
Last Updated: October 14, 2008
Posted: May 21, 2007
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