Over twenty years ago Nikoli, the Japanese puzzle and game company, started publishing a curious ...
Something totally new for adult puzzle fans: mazes that reveal pictures once they're completed! R...
Prepare to be obsessed. Match wits with the experts who created Sudoku. Arranged from “Easy” to “...
The next step, like having a whole book of just Saturday Times crossword puzzles. Even more fiend...
“The Best Puzzles Are Made by Happy Employees.” So Ad Age describes the credo of Nikoli, the Japa...
Expert Sudoku is an all-new collection of handcrafted puzzles for the expert puzzle-solver. This ...
The ultimate collection of over 1,000 handcrafted sudoku puzzles, in a range of difficulties, han...
Extra tricky. Extra tough. It's the sudoku collection that's not for the faint of heart. If you'r...