Frank Longo

mental_floss Sudoku: It's the Brain Candy You've Been Craving!

Frank Longo

$11.39

Second-Degree Black Belt Sudoku (Martial Arts Sudoku)

Frank Longo

$11.49

Mensa Absolutely Nasty Sudoku Level 4 (Mensa)

Frank Longo

$7.69 - $12.02

Beyond Black Belt Sudoku: If you have to ask, it's too hard for you.

Frank Longo

$8.79 - $11.49

Mensa Guide to Solving Sudoku: Hundreds of Puzzles Plus Techniques to Help You Crack Them All (Mensa)

Frank Longo

$16.69

Second-Degree Brown Belt Sudoku (Martial Arts Sudoku)

Frank Longo

$7.29 - $10.88

Third-Degree Black Belt Sudoku (Martial Arts Sudoku)

Frank Longo

$11.49

The Nastiest Sudoku Book Ever

Frank Longo

$12.79 - $16.00

Second-Degree Green Belt Sudoku (Martial Arts Sudoku)

Frank Longo

$6.69 - $11.49

Way Beyond Black Belt Sudoku®

Frank Longo

$10.49 - $11.48

The Sudoku Code: 200 Sudoku Puzzles. One Answer. Can You Find It?

Frank Longo

$4.69

Mensa Absolutely Nasty Sudoku Level 1 (Mensa)

Frank Longo

$12.13

Third-Degree White Belt Sudoku®

Frank Longo

$10.49 - $11.49

Absolutely Nasty Sudoku Level 3

Frank Longo

$15.99

Skill Builder Sudoku: Medium to Hard

Frank Longo

$12.05

Pause for Puzzles: Sudoku for Mindfulness

Frank Longo

$6.49

Skill Builder Sudoku: Easy to Medium

Frank Longo

$12.07

The Official Book of Wordoku: Sudoku Puzzles for Word Lovers

Frank Longo

$5.09

Poolside Sudoku

Frank Longo

$12.13

Big Book of White Belt Sudoku

Frank Longo

$21.49

Third-Degree Brown Belt Sudoku®

Frank Longo

$11.39

Martial Arts Sudoku Level 9: Black Belt Sudoku (Martial Arts Sudoku)

Frank Longo

$7.69

Blockbuster Book of Sudoku

Frank Longo

$14.64

Skill Builder Sudoku: Hard to Expert

Frank Longo

$12.13

10 x 10 Sudoku

Frank Longo

$56.49

Third-Degree Green Belt Sudoku®

Frank Longo

$34.59

Absolutely Nasty Sudoku: Even Nastier - Level 1

Frank Longo

$12.47

Enter the Ninja Sudoku™

Frank Longo

$9.29

Sudoku Puzzles for the Weekend

Frank Longo

$9.99

Oy Vey! Sudoku

Frank Longo

$22.09