Sudoku: Medium - Hard: 200 advanced sudoku puzzles - Paperback, by Djape - Good

Medium Difficulty Sudoku Puzzles Volume 3: 200 Medium Sudoku Puzzles for Interme

Killer Sudoku Puzzle Book for Adults: 200 Medium to Hard Sumdoku with...

Very Hard Sudoku Puzzle Book Volume 1: Very Hard Sudoku Puzzles for Advanced Pla

Up - 200 Sudoku puzzles easy and medium level - New paperback or softb - X555z

Bencomo - Sudoku 200 The Hardest Sudoku Puzzles In The World - New pa - X555z

Publishing US - Sudoku Medium Master 200 Mid-Level Puzzles for Optima - X555z

Designs - 200 Medium Sudoku Puzzles Book 2 - New paperback or softbac - X555z