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Killer Sudoku: 1,000 + New sudoku killer 10x10: Logic puzzles medium - hard levels (Paperback)

Killer Sudoku Pro 2: 200 Puzzles

Easy to Hard Killer Sudoku Graphic by PrintablePDFStore · Creative Fabrica

Killer Sudoku Puzzles (Fun With Sudoku #233, #234)

1,000 + Collection sudoku killer 12x12: Logic puzzles easy - medium - hard - extreme levels (Paperback)

Variety Puzzle Books for Adults - 400 Normal Puzzles 9x9: Killer Sudoku, Killer Sudoku X, Killer Sudoku Jigsaw, Argyle Killer Sudoku (Volume 16) (Paperback)

1,000 + Mega sudoku killer 8x8: Logic puzzles hard - extreme levels (Paperback)

Kakuro and Killer Classic Sudoku: 200 Kakuro and 200 Killer Sudoku puzzles. Easy levels. : Kakuro 9x9 + 10x10 + 12x12 + 15x15 and Sumdoku 8x8 EASY +

Killer Sudoku Adult Puzzle Book: 500 Easy to Hard : Keep Your Brain Young (Logical Brain Games Series) - Alzamili, Dr. Khalid: 9789922636863 - AbeBooks