David Smith

Classic Sudoku - 400 Easy to Master Puzzles Vol.6 (Classic Sudoku, #6)

Classic Sudoku - 200 Easy to Master Puzzles Vol.5 (Classic Sudoku, #5)

Kropki Sudoku - 200 Puzzles 9x9 Vol.3 (Kropki Sudoku, #3)

Kropki Sudoku - 200 Puzzles 9x9 Vol.4 (Kropki Sudoku, #4)

Kropki Sudoku - 200 Puzzles 6x6 Vol.2 (Kropki Sudoku, #2)

Kropki Sudoku - 200 Puzzles 6x6 Vol.1 (Kropki Sudoku, #1)

Skyscrapers - 200 Easy Puzzles 9x9 Vol.1

Outside Sudoku - 200 Master Puzzles Vol.4

Outside Sudoku - 200 Easy to Master Puzzles Vol.5

Skyscrapers - 200 Master Puzzles 9x9 Vol.4

Skyscrapers - 200 Normal Puzzles 9x9 Vol.2

Outside Sudoku - 200 Normal Puzzles Vol.2

Outside Sudoku - 400 Easy to Master Puzzles Vol.6

Outside Sudoku - 200 Easy Puzzles Vol.1

Skyscrapers - 200 Hard Puzzles 9x9 Vol.3

Outside Sudoku - 200 Hard Puzzles Vol.3

Number Cross Puzzles - 200 Easy Puzzles 9x9 Vol.1

Mega Sudoku - 200 Normal Puzzles 16x16 Vol.2

Number Cross Puzzles - 200 Hard Puzzles 9x9 Vol.3

Number Cross Puzzles - 200 Easy to Normal Puzzles 9x9 Vol.4

Mega Sudoku - 200 Hard Puzzles 16x16 Vol.3

Mega Sudoku - 200 Master Puzzles 16x16 Vol.4

Number Cross Puzzles - 200 Normal to Hard Puzzles 9x9 Vol.5

Number Cross Puzzles - 200 Normal Puzzles 9x9 Vol.2