Kirsti Koivurinne

By Robert Barker | April 7, 2016

Your teaching is very clear, easy to follow (couldn’t have put it better myself!). I enjoy them very much… I think your lessons are an excellent way to start solving Sudoku puzzles for someone, like myself, who hasn’t done them before.

Thank you for interesting lessons.

Kirsti Koivurinne

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Testimonials

I have found the lessons very helpful. Very well explained, you don’t assume we know what you are talking about, you clearly explain things step by step.

Elaine Rivas

Professor Chad, U R AMA-ZING! But . . . now I’m addicted to Sudoku! ‘Can’t wait to learn more and become an expert like U.

Linda R. Adams

Phenomenal!

Dr. Wilfred A. Gallant Ed D.

Dear Chad, I want to thank you for taking the time to produce your Sudoku videos. Although I’ve reached the point where I can do a few hard puzzles, I don’t seem to be able to push forward and do them successfully on a regular basis. Your videos have already given me a few new ways of looking at the puzzles. I am looking forward to working through the whole series. Sincerely,

Jean

Your videos were very helpful in learning how to play Sudoku. Thank you very much for creating them and sharing them with us.

Susan Allen

Thanks for all of the follow-up on your lessons. I have found the lessons and the follow-up to be very useful. They have met your promises and my expectations.

Pat Eckelberry

I have finished just the sophomore videos and it has already greatly improved my solving times and abilities.

Sue Boutfam

I am up to Senior level classes and I notice I am not having the difficulties solving puzzles I once had . Still stumble a little but am having more fun solving harder puzzles than ever before . Thanks Chad!

Greg Dodson

The lessons have been very helpful! I received a “Sudoku a Day” calendar last Christmas and was stuck on the hard puzzles. Now that I’ve been through all of the lessons, I’m keeping up with the puzzles and don’t have any outstanding unsolved puzzles.

Bonnie

HIGHLY recommend signing up for the Sudoku Professor’s lessons. They have helped me SO MUCH on solving puzzles. Even when I listen to the lessons twice, I have picked up on helpful ideas that I may have missed the first time. Still learning, practicing and looking forward to future lessons.

Ginger Jones, Nocona, TX

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