Demanding Sudoku Puzzle - Hard to Solve

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Published 2018-09-13

Here is a Demanding Level Sudoku puzzle from the Will Shortz book Surrender to Sudoku, 200 Irresistibly Hard Puzzles. The puzzles in this book are all fairly hard to solve. Will is the crossword puzzle editor for the New York Times. Watch to see the sudoku techniques and tricks I use to solve puzzles. Have fun with it.

All Comments (21)

@Chandransingham 1 year ago

Very helpful. Thanks.
@NMalteC 5 years ago

You were able to solve the puzzle solely by applying the Snyder notation. In my opinion that wasn't a hard puzzles at all. But you did all that was necessary.
@petrajudd2533 5 years ago

The sound of the rubber scratching the paper gives me the shivers. Enjoyed the rest of the video....well solved!
@computerkid1416 5 years ago

Your Sudoku tutorials are easy to follow and down-to-earth. Thanks.
@stephenspreckley8219 5 years ago

Simple puzzle , thanks!
@drphu 5 years ago

You Killed it!
@edro3838 2 years ago

Nicely done!
@MayerBarzini 5 years ago

Great job
@thetruthoftheuniverse2064 2 years ago

very good tutorial and learn lots from this video
@larrypoorman2300 5 years ago

Not everyone is an expert and thinks that this puzzle is easy. I didn't. Thanks very much.
@balakrishnasharma9683 4 years ago

YOU SHOWED ME POSSIBILITY OF BLOCKING NUMBER ( IN THIS CASE NUMBER 8) BY EXTENSION AND LCR METHOD. THIS METHOD REALLY WORKS .
@mathiaspoulson 5 years ago

no triples, no quads, nothing special at all, in all this would be classified as a medium sudoku at best
@antoniojhuerta 5 years ago

Best, fast and clear explanation ever... Thx!
@georgesthibaudeau1533 1 year ago

Note in 6th minute when you place candidates 2 in rows 1 and 2 of c 7, the 2 is in fact restricted to r2c7 due to the intercepring 79 in that row (c5 and 6. The puzzle relatively easy, so I did it without the help of pencil marks, in under 16 minutes. Enjoyable ride. The snyder notations you teach is a great one to solve more difficult puzzle, or in fact move faster for a puzzle such as this one..
@tobyornot 5 years ago

Nice that you keep cleaning up.
@em1844 3 years ago

Very good video, good explaining and nice clear voice, thanks so much. Please get a good eraser.
@shekharsingh2029 5 years ago

Nice
@alittlebindi25 1 year ago

The jumps in logic at the beginning (especially with the 8) took me a bit to work out. I guess with more practice it will be easier to spot where numbers have to go.
@kartikkumar7699 5 years ago

This was a pretty easy one
@swms26 3 years ago

Fine explination on medium puzzle.