This week the sudoku of the week is a level 5 sudoku puzzle. If you have trained enough, it should still be a piece of cake for you. Go to the "Sudoku Puzzles" section quickly to prove us your talents.
A sudoku puzzle comprises 9 rows, 9 columns and 9 blocks. Each of them must contain all numbers from 1 to 9. More explanation can be found at the "rules section".