Strain your brain--not your eyes! With one puzzle on each page, large numbers, and plenty of space to write, these super-sized sudoku are easy to read…but challenging to solve. Created by one of the w
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, this collection packs ev
Endless fun for devoted solvers! At 21 feet, 9 ? inches long, and with 8,929 empty squares to fill, this huge puzzle adds big excitement to the popular game—and is the perfect challenge for fans who f
For diehards only! These incredibly difficult puzzles are handcrafted for the sudoku warrior who dares to go where other solvers fear to tread. So, if you're armed with the highest-level strategies, g
The two longest crosswords ever created—now together for the first time! Amazingly, in spite of their massive size, these puzzles follow the rules of standard American crosswords: full interlock, no r
Sudoku super-master Frank Longo and mental_floss, the magazine for trivia lovers, bring fans a collection of superb puzzles sure to stimulate the brain. Longo's puzzles are always top-notch, and becau
