David Smith

Binary Puzzles - 200 Hard to Master Puzzles 9x9 Vol.2

Binary Puzzles - 200 Easy to Normal Puzzles 9x9 Vol.1

Binary Puzzles - 400 Easy to Normal Puzzles 9x9 Vol.5

Binary Puzzles - 200 Easy to Normal Puzzles 10x10 Vol.3

Binary Puzzles - 400 Hard to Master Puzzles 10x10 Vol.8

Mega Sudoku X - 200 Hard to Master Puzzles 16x16 Vol.7 (Mega Sudoku X, #7)

Mega Sudoku X - 400 Easy to Master Puzzles 16x16 Vol.8 (Mega Sudoku X, #8)

Mega Sudoku X - 200 Normal Puzzles 16x16 Vol.2 (Mega Sudoku X, #2)

Mega Sudoku X - 200 Master Puzzles 16x16 Vol.4 (Mega Sudoku X, #4)

Mega Sudoku X - 200 Easy Puzzles 16x16 Vol.1 (Mega Sudoku X, #1)

Mega Sudoku X - 200 Normal to Hard Puzzles 16x16 Vol.6 (Mega Sudoku X, #6)

Mega Sudoku X - 200 Hard Puzzles 16x16 Vol.3 (Mega Sudoku X, #3)

Mega Sudoku X - 200 Easy to Normal Puzzles 16x16 Vol.5 (Mega Sudoku X, #5)

Killer Sudoku - 200 Easy to Normal Puzzles 9x9 Vol.1 (Killer Sudoku, #1)

Killer Sudoku - 200 Easy to Normal Puzzles 12x12 Vol.3 (Killer Sudoku, #3)

Killer Sudoku - 400 Easy Puzzles 6x6 Vol.5 (Killer Sudoku, #5)

Killer Sudoku - 200 Hard to Master Puzzles 12x12 Vol.4 (Killer Sudoku, #4)

Killer Sudoku - 200 Hard to Master Puzzles 9x9 Vol.2 (Killer Sudoku, #2)

Killer Sudoku - 400 Master Puzzles 6x6 Vol.8 (Killer Sudoku, #8)

Killer Sudoku - 400 Normal Puzzles 6x6 Vol.6 (Killer Sudoku, #6)

Killer Sudoku - 400 Hard Puzzles 6x6 Vol.7 (Killer Sudoku, #7)

Hitori Puzzles - 200 Puzzles 10x10 Vol.3 (Hitori Puzzles, #3)

Hitori Puzzles - 200 Puzzles 8x8 Vol.1 (Hitori Puzzles, #1)

Hitori Puzzles - 200 Puzzles 11x11 Vol.4 (Hitori Puzzles, #4)