Grilles Sudoku tres difficiles Le test logique pour les confirmes
by Puzzle Therapist
400 CLASSIC SAMURAI VERY HARD PUZZLES + 250 regular Sudoku BONUS (Samurai Classic Sudoku, #5)
by Basford Holmes
Akari Puzzles - 200 Hard to Master Puzzles 10x10 vol.6 (Akari Puzzles, #6)
by David Smith
Albany Great Danes Sudoku and Crossword Activity Puzzle Book
by Mega Media Depot
Killer Sudoku - 200 Hard Puzzles 9x9 (Volume 2) (Hard, #2)
by Oliver Quincy
Sudoku Training Books for Adults Easy to Intermediate Sudoku Puzzles
by Speedy Publishing
Sudoku (396 Sudoku 9x9 Puzzles: Medium, Hard, #2)
by Matrix Puzzles
Are you up to the challenge of 200 new Su Doku puzzles, arranged in easy, medium and difficult categories? Keep your mind sharp and test your powers of deductive reasoning. Ideal for whiling away those long commutes, travelling on holiday or relaxing at home.
Sudoku 9 X 9 - 250 Skyscraper Puzzles - Anti - Diagonal - Level Silver
by Andrii Pitenko
The Mini Book of Logic Puzzles - Jigsaw X 200 Hard (Volume 11) (The Mini Book of Logic Puzzles Jigsaw X, #11)
by Mykola Krylov
Master of Puzzles Suguru - 400 Easy to Medium Puzzles 6x6 Vol.17 (Suguru, #17)
by James Lee