Suduko

As usual, we find that the simple puzzles are the most challenging. The rules for Suduko are easy: Enter digits from 1 to 9 into the blank spaces. Every row must contain one of each digit. So must every column, as must every 3x3 square. It's a simple game of logic, not a guessing game. Yes, there are numbers (scary!) but there's no math involved. With three levels to choose from (easy, medium, hard), there is a challenge for every ego.