10x10 Hard Sudoku Puzzles 150 Puzzles. FREE shipping on qualifying offers. 60 extra logic puzzles.
60 extra logic puzzles. Oct 19 2014 Jigsaw Sudoku 10x10 - Hard is a collection of 276 puzzles. 216 hard Sudoku 10x10 puzzles.
Sep 19 2014 Sudoku 10x10 - Hard is a collection of 276 puzzles.
60 extra logic puzzles. Sudoku - Hard A150 This hard sudoku puzzle is very challenging and may be most suitable for seasoned puzzle solvers. Easy medium hard. Millions of free jigsaw puzzles created by a large community.