Go way beyond difficult, with the hardest, most brain-busting sudoku you've ever seen! Calling all sudoku-solving diehards: with every puzzle requiring upper-level strategies, …
Acclaimed Japanese mathematics instructor Tetsuya Miyamoto developed KenKen in 2004 and it has since taken over the puzzling world. It takes a page from karate - another Japanese …
Were giving you the second degree … in brown-belt kakuro training! Go from good to great with these tough puzzles. Complete them all, and youll be ready to earn your black belt.
Get ready to fight your way to the top of the sudoku ranks! Each book in this Martial Arts sudoku series will contain 300 puzzles, with a different blend of sudoku variants …
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 …
Acclaimed Japanese mathematics instructor Tetsuya Miyamoto developed KenKen in 2004 and it has since taken over the puzzling world. It takes a page from karate - another Japanese …
With a separate sudoku book for every level, all puzzle lovers can play this wildly popular, incredibly addictive game that's appearing in major newspapers all over! Taking a page …
With a separate sudoku book for every level, all puzzle lovers can play this wildly popular, incredibly addictive game that's appearing in major newspapers all over! Taking a page …
Get ready to fight your way to the top of the sudoku ranks! Each book in the Martial Arts sudoku series will contain 300 puzzles, with a different blend of variants depending on …
Math meets sudoku in this fun, challenging puzzle craze from Japan. KenKen is a grid-based numerical puzzle that uses basic math operations—addition, subtraction, multiplication, …
