Samurai Sudoku for Sudoku Addicts,its amazing!!!

Samurai sudoku puzzles consist of five overlapping sudoku grids. The standard sudoku rules apply to each 9 x 9 grid. Place digits from 1 to 9 in each empty cell. Every row, every column, and every 3 x 3 box should contain one of each digit.

The puzzles on Samurai Sudoku have one unique solution which can be found with pure logic, no guessing required.

Here is the link: http://www.samurai-sudoku.com/