Math meets sudoku in this fun, challenging puzzle craze from Japan.
Ready for step two? These KenKen offer a challenge that intermediate solvers will enjoy.
KenKen is a grid-based numerical puzzle that uses basic math operations--addition, subtraction, multiplication, and division--while also challenging your logic and problem-solving skills.
In a way, KenKen is like a game of pool or even chess: The more you think ahead to your next move and consider all the possible outcomes, the better you'll get .
and the smarter you'll become.