---
product_id: 12788959
title: "Third-Degree Black Belt Sudoku® (Martial Arts Puzzles Series)"
brand: "frank longo"
price: "€ 31.07"
currency: EUR
in_stock: true
reviews_count: 13
url: https://www.desertcart.sk/products/12788959-third-degree-black-belt-sudoku-martial-arts-puzzles-series
store_origin: SK
region: Slovakia
---

# Third-Degree Black Belt Sudoku® (Martial Arts Puzzles Series)

**Brand:** frank longo
**Price:** € 31.07
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Third-Degree Black Belt Sudoku® (Martial Arts Puzzles Series) by frank longo
- **How much does it cost?** € 31.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/12788959-third-degree-black-belt-sudoku-martial-arts-puzzles-series)

## Best For

- frank longo enthusiasts

## Why This Product

- Trusted frank longo brand quality
- Free international shipping included
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## Description

Third-Degree Black Belt Sudoku® (Martial Arts Puzzles Series)

## Images

![Third-Degree Black Belt Sudoku® (Martial Arts Puzzles Series) - Image 1](https://images-na.ssl-images-amazon.com/images/I/514kml0BO2L.jpg)
![Third-Degree Black Belt Sudoku® (Martial Arts Puzzles Series) - Image 2](https://images-na.ssl-images-amazon.com/images/I/317to3cSy8L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Love the challenge!
  

*by S***P on Reviewed in the United States on April 13, 2020*

Look & feel: I love the book format as I’m a bit of a purest and enjoy doing sudoku puzzles by hand. I always use pen and it does show through ever-so-slightly on the back of the pages but it’s not so bad that I can’t do the puzzle on the other side (i.e. the paper is thick enough to do double sided puzzles in pen). The puzzles are good size/easy to read. A spiral binding would be the only improvement I’d suggest for ease of writing on the back sides of pages.Difficulty: I’m only a handful of puzzles in but this book is so far providing a great amount challenge (without being completely impossible). It is for more advanced levels. To provide context, I can usually zip through your typical newspaper or online sudoku puzzle in minutes. I have an app on my phone & the “very hard” level puzzles might take me up to half an hour. So far the puzzles in this book take me at least half an hour. I don’t usually have to use the technique of writing in all the possible #s in a given square, but on these I usually have to at some point. Prior to reading these reviews I was unfamiliar with some of the techniques mentioned (e.g. X-wing), though I think in my own way my mind uses a similar strategy when attempting solutions. So that level of skill seems to be necessary, even if it’s not the exact technique. My point being that your basic strategy of number elimination for a given square is not going to be enough for these puzzles. You’ll need to do a bit of mental yoga for these. But that’s what I love.Value: Well worth the money considering how much time this entire book will take to complete.Recommendation: I highly recommend for folks who can breeze through a “hard”-level newspaper sudoku puzzle and seek a longer lasting, mind-stretching challenge.

### ⭐⭐ 







  
  
    Less than his best work
  

*by M***D on Reviewed in the United States on May 30, 2018*

Usually Frank Longo does good, hard puzzles.  I am 156 puzzles in and I would rate two of them as 4-star the rest 2 or 3 star.  No 5-stars yet.  Most can be solved in 30 minutes or less without much thought.His Second Degree Black Belt book was lots harder.

### ⭐⭐⭐⭐⭐ 







  
  
    Challenging
  

*by R***T on Reviewed in the United States on December 12, 2020*

The puzzles are difficult enough to be interesting, sometimes requiring multiple solving techniques. I haven't found any that included extremely advanced solutions, which to me are just frustrating. Size of the grid is very good. I appreciate the larger squares. Spiral binding would have been nice.

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-12*