Doug Hollingsworth

By Chad Barker, Your Sudoku Professor | November 11, 2018

I am really looking forward to the advanced videos and techniques, so I can go after the difficult puzzles with greater confidence.

Doug Hollingsworth

Posted in Uncategorized

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Testimonials

Greetings, Sudoku Prof (SP for short) Pursuant to your request for feedback, may I say without reservation that your video lessons are clear and to the point, which is just what they should be. Using your techniques are improving my game considerably. Thanks! Your humble student,

Arlene

Thanks for your assistance. I have thoroughly enjoyed the process.

Bill Rubel

Hi, Chad, I just got lucky and found your lessons right after I’d started doing sudoku. I’ve been a crossword person for years and finally decided I had to see what all the hoo-ha was about. The lessons are great. Thanks again,

Tamara

Phenomenal!

Dr. Wilfred A. Gallant Ed D.

Hey Professor… As a beginning Sudoku player I searched the web, found your site and subscribed. At the time I was brute-forcing my games with real poor results. After watching your video’s on 1-9, doubling, and searching for patterns, I am now completing the Sudoku puzzles in the local weekly paper. I’m looking forward to receiving more lessons and maybe moving my game up the rung of difficulty a notch. Thanks again.

"Tumbleweed"

Think they are great.Clear to the point and you have great patience with your students. It is easy to go back and see where you made your mistakes. Best money I ever spent. Sincerely,

Muriel Bradley

I just want to say thanks for your excellent videos on solving sudoku puzzles. First I tried sudoku in my age 73 when friends recommended to exercise my ageing brain with this game. I was happy to find your lessons promising to teach me the basics, tips, tricks and advanced methods of solving these versatile puzzles. Although I can proceed slowly in viewing your well constructed videos I have got more than expected so far. You have shown me the whole process of solving problems, how to change m… Read more

Gábor Hantos

Your videos are excellent! I’m looking forward to your advanced videos for us that have mastered the more basic puzzles. Thank you.

Gino C.

My wife and I have been fans of Sudoku for the past several years but have never really progressed past the ‘Brown Belt’ difficulty. Since our recent enrollment in your ‘Sudoku University’ we have worked through to the Sophomore 203 level in your lessons and are enjoying your systematic approach and pattern solving techniques immensely. We look forward to tackling the ‘Black Belt’ challenges in the near future. Thanks for a great product!

Ray Robertson

My interest was piqued by my son and daughter doing Sudoku.. I tried doing it on my own but was using the “write in every possible number” method which resulted in becoming frustrated with it. An eighty year old lady told me how easy it was once you saw patterns. That still didn’t help, but I figured if she could do it, I should be able to also. I checked out on-line help and found it unsatisfactory until I came upon Sudoku Professor. This system unlocked the method behind the madness that is S… Read more

Winnifred Wood

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