For Sudoku Lovers !

I designed this puzzle in Aug 2009 for "Contest for Best Logic Innovative Puzzle" organised by Serbian Puzzle Association. So just take a print out and try to solve it.

KNIGHTS LOOP SUDOKU

The objective is to fill the 9×9 grid so that each column, each row, each of the nine 3×3 boxes, and both the main diagonals contains the digits from 1 to 9 only one time each. Also it has 4 knight loops of 4 different digits each of length 4.

Knight Loop of digit K of length N : It’s a loop formed by moving a knight of chess on this 9x9 Sudoku Grid to N different squares and back to the initial position in N steps and replacing all these places by the digit K.

For Detailed Solution mail me @ rakhel.parida@gmail.com

For more about the Contest

Result

On Rohan Rao's Blog