Frank Longo

Crosswordoku

Challenging Thursday Sudoku (Sudoku (Sterling Publishing))

Easy Tuesday Sudoku (Sudoku (Sterling Publishing))

Harder Wednesday Sudoku (Sudoku (Sterling Publishing))

Breezy Monday Sudoku (Sudoku (Sterling Publishing))

Cranium-Crushing Friday Sudoku (Sudoku (Sterling Publishing))

Great Sudoku to Exercise Your Mind (AARP)

Sudokugrams

25-foot-long Crossword Puzzle

Super Sudoku to Exercise Your Mind (AARP)

Easy-to-Hard Mensa® Sudoku

Scrabble-Doku

Trivial Pursuit Sudoku

Sports-Doku

Movie-doku

Scrabble Crosswords

Second-Degree Black Belt Sudoku (Dollar Tree) (Martial Arts Sudoku)

Second-Degree Green Belt Sudoku (Dollar Tree) (Martial Arts Sudoku)

Second-Degree White Belt Sudoku (Dollar Tree) (Martial Arts Sudoku)

Word Search Sudoku (Official Mensa Puzzle Book S.)

Ultimate Ninja Sudoku

Revenge of the Ninja Sudoku

Master Ninja Sudoku

Absolutely Nasty® Sudoku Level 4