KenKen is the brilliant successor to Su Doku that s taken Japan by storm selling over one million copies in less than a year. In collaboration with The Times, C

Each colour-coded KenKen title has a different level of difficulty and includes a range of mathematical skills. Books three and four are perfect for those who h

KenKen is the world's fastest growing puzzle since sudoku. It was developed in a Japanese Classroom in 2004 by renowned educator, Tetsuya Miyamoto, and was late

Not only are these puzzles fun but KenKen helps children improve concentration, logic and arithmetic skills. Children ages 9-12 have excelled in math and gained

Not only are these puzzles fun but KenKen helps children improve concentration, logic and arithmetic skills. Children ages 9-12 have excelled in math and gained