520 books • 20 series
Sudoku 6 X 6 - 250 Skyscraper Puzzles - Diagonal - Gold
Sudoku 6 X 6 - 250 Skyscraper Puzzles - Anti - Knihgt - Bronze
Sudoku 6 X 6 - 250 Even - Odd Puzzles - Anti - Knight - Silver
Sudoku 6 X 6 - 250 Skyscraper Puzzles - Anti - Knight - Silver (6 X 6 Pitstop, #35)
Sudoku 6 X 6 - 250 Even - Odd Puzzles - Hermit - Silver
Sudoku 6 X 6 - 250 Neighbors - Diagonal Puzzles - Gold
Sudoku 6 X 6 - 250 Kropki Puzzles - Diagonal
Sudoku 6 X 6 - 250 Even - Odd Puzzles - Hermit - Gold
Sudoku 6 x 6 - 250 Kropki Puzzles - Mosaic
Sudoku 6 X 6 - 250 Consecutive - Anti - Knight Puzzles - Bronze
Sudoku 6 X 6 - 250 Even - Odd Puzzles - Hermit - Bronze
Sudoku 6 X 6 - 250 Neighbors - Diagonal Puzzles - Bronze
Sudoku 6 X 6 - 250 Consecutive - Anti - Knight Puzzles - Gold
Sudoku 6 X 6 - 250 Neighbors - Diagonal Puzzles- Silver
Sudoku 6x 6 - 250 Consecutive - Anti - Knight Puzzles - Silver
Sudoku 6 X 6 - 250 Killer Puzzles - Hermit - Bronze (6 X 6 Pitstop, #10)
Sudoku 6 x 6 - 250 Hikaku Diagonal Puzzles - Bronze (6 X 6 Pitstop, #13)
Sudoku 6 X 6 - 250 Even - Odd Puzzles - Diagonal - Silver
Sudoku 6 X 6 - 250 Even - Odd Puzzles - Diagonal - Bronze
Sudoku 6 X 6 - 250 Killer Puzzles - Hermit - Gold (6 X 6 Pitstop, #12)
Sudoku 6 X 6 - 250 Killer Puzzles - Hermit - Silver (6 X 6 Pitstop, #11)
Sudoku 6 X 6 - 250 Even - Odd Puzzles - Diagonal - Gold
Sudoku 6 X 6 - 250 Hikaku Diagonal Puzzles - Silver
Sudoku 6 X 6 - 250 Hikaku Diagonal Puzzles - Gold (6 X 6 Pitstop, #15)