Second-Degree Green Belt Sudoku® (Martial Arts Puzzles Series)

Helps keep your mind sharp

Challenging yet still able to complete some of the puzzles.

Like the soft cover book and the print/puzzles not huge print but then again not so small print. Great to do before bed calms me down winds me down before bed with out the use of the lights of TV or cell phone. Answer key in back of book. Not a thick heavy book to carry around. If traveling I will rip a few pages out and go for the challange to complete without anwer key with me. Or if you want the answer take a pic if need help.

White belt was too easy. Brown belt is really hard for me and requires full focus to get through each puzzle. Green belt is a great relaxing puzzle book.

Like Goldilocks, this level and brand of Sudoku Puzzle Book is just right for my skill level. Not too easy and not too challenging. If it's too easy, I'm bored. If it's too difficult, I'm frustrated. I like the quality of paper (not newsprint) so jotting possible numbers and erasing a lot isn't a problem. Print is just the right size for my "over-50" eyes. Small book size is just right to hold while I'm puzzling in bed. I'd buy again.

The Third-Degree Green Belt book was a little too hard for me. Given enough time I could do some of the puzzles unaided but had to refer to the answers too often. Thinking the Second-Degree book would be a little easier, I bought it. Surprise! It's even harder than the Third-Degree Green Belt book. Way harder! Maybe eventually I'll have the skill to solve these puzzles, but for now it's going on the shelf.

I love the Martial Arts series of Sudoku Books! With 2 puzzles per page I can easily enter the possibilities. I especially like that the whole book contains puzzles of the same degree of difficulty.

Not nearly as good as the first-degree book, but it's still pretty good. Some of the puzzles are too complex too soon. I'd like something halfway between the first "green belt" book and this one, but this is good enough if you're addicted to sudoku and don't know what to do after the first "green belt" book in this series.