520 books • 20 series
4 Cross Sudoku - X Diagonal - 250 Puzzles Bronze - Silver - Gold - Vol. 190
Samurai - 250 Anti-Diagonal Sudoku - Puzzles Bronze - Silver - Gold - Vol. 189
Number-X - Anti-Diagonal Sudoku- 250 Puzzles Bronze - Silver - Gold - Vol. 187
Rose of Wind Sudoku - X Diagonal - 250 Puzzles Bronze - Silver - Gold - Vol. 192
Number - X - Hermit Sudoku - 250 Puzzles Bronze - Silver - Gold - Vol. 186
Number-X - Anti-Knight Sudoku - 250 Puzzles Bronze - Silver - Gold - Vol. 185
Number-X - Windowdoku Sudoku - 250 Puzzles Bronze - Silver - Gold - Vol. 184
Number -"x" - X Diagonal Sudoku - 250 Puzzles Bronze - Silver - Gold - Vol. 179
Number-X-Octagonal Star Sudoku-250 Puzzles Bronze-Silver-Gold-Vol.181
Numder - X - Argyll Sudoku - 250 Puzzles Bronze - Silver - Gold - Vol. 180
Number-X-Wheel of Fire Sudoku-250-Puzzles Bronze-Silver-Gold-Vol.182
Number-X-Central Points Sudoku-250 Puzzles Bronze-Silver-Gold-Vol. 183
Killer Sudoku - Octagonal Star - 250 Puzzles Bronze - Silver - Gold - Vol. 172
Killer Sudoku - Wheel of Fire - 250 Puzzles Bronzt - Silver -Gold - Vol. 173
Killer Sudoku - Hermit - 250 Puzzles Bronze - Silver - Gold - Vol. 177
Killer Sudoku - Central Points - 250 Puzzles Bronze - Silver - Gold - Vol. 174
Killer Sudoku - Windowdoku - 250 Puzzles Bronze - Silver - Gold - Vol. 175
Killer Sudoku - Anti-Diagonal - 250 Puzzles Bronze - Silver - Gold - Vol. 178
Killer Sudoku - Anti-Knight - 250 Puzzles Bronze - Silver - Gold - Vol. 176
Killer Sudoku - Argyll - 250 Puzzles Bronze - Silver - Gold - Vol. 171
Hikaku Sudoku 9 X 9 - 250 Central Points Puzzles - Level Silver - Vol. 168
Killer Sudoku - X Diagonal - 250 Puzzles Bronze - Silver - Gold - Vol. 170
Hikaku Sudoku 9 X 9 - 250 Central Points Puzzles - Level Bronze - Vol. 167
Hikaku Sudoku 9 X 9 - 250 Central Points Puzzles - Level Gold -Vol. 169
