Jumbo Sudoku Mastermind Paperback – April 2, 2013

This has nothing but challenging puzzles, some of which are very difficult. All have solutions, and I feel good when I solve one. The book lasts for quite a while, as there are a lot of puzzles, and none of them are easy.

Love these jumbo sudoku books. I especially like the samurai and killer puzzles - the harder the better. I'd rather have a book of just these without the battleship or the regular sudoku puzzles. I hope a new book is published soon

I like the variety and the hard puzzles. Big grids easy to read. I would like more of the futoshiki and killer puzzles and less Sudoku though.

I especially enjoy the puzzles, other than Sudoku, which are harder to find. Love the 3 levels of difficulty, too.

gift for my father, he love it. he has not put it down since i gave it to him. Thanks.

Great variety of challenging sudoku puzzles. I really like the variety of the puzzles except for the battleship ones. I just cannot get into those.

good variations

entertaining and good exercise for the mind!

Have worked through some before. Love the variety of puzzles.

Excellent