In this three-book series, each book helps solvers build their skills to get from one level to th...

In this three-book series, each book helps solvers build their skills to get from one level to th...

In this three-book series, each book helps solvers build their skills to get from one level to th...

With every puzzle requiring upper-level strategies, this collection packs even more of a punch th...

In this book, prolific sudoku creator Frank Longo provides 100 classic sudoku, all from easy to m...

Everyone loves sudoku puzzles, finding them impossible to put down. The only problem: having enou...

With a separate sudoku book for every level, this work helps puzzle lovers play this popular game...

These 77 puzzles will introduce kids to the challenging and rewarding fun of sudoku. With its fre...

Secretos para resolver sudokus y brillantes métodos para conseguirlo. ¿Cómo puede adquirir destre...

The difficulty level soars, as even more tricks get added to the mix: X-Wing; Swordfish; XY-Wing;...

Sudoku super-master Frank Longo and mental_floss, the magazine for trivia lovers, bring fans a co...

For confident players only!