Understanding the Power of Bi-Value Cells / Sudoku Tutorial #18

[@wordoku]

I love your Baroque piano at the beginning of each of your videos. I have always loved that style of music!

[@SudokuSwami]

Thanks very much. (Don't tell anyone, but that's me playing.....!) :-) This one is the Prelude from the English Suite #2 for piano by J.S. Bach. Glad to know someone is listening. I figure most people just skip through the music.

[@wordoku]

I thought that might be you playing. That's great! There's something about different voices in Baroque that I love. I wish I could play like that!

[@SudokuSwami]

Bach is the King. But I love Chopin, too. I have used some of Chopin's pieces for soundtracks to other videos......... Just Bach & Chopin. It doesn't get any better than that. Glad you enjoy it. You have good taste!

[@charlesmangum3108]

I wondered if it was you playing. You very talented in more than one way.

[@SudokuSwami]

If you enjoyed this Video, please don't forget to click the SUBSCRIBE button, and the Thumbs Up Icon. It will really help me out. Thank you!

[@mwoj9048]

Just solved my first "extreme" puzzle without hints. Great feeling. All thanks to your awesome videos! Looking forward to #19 and on.

[@SudokuSwami]

That's great news, Mike. Glad to hear it. #19 will be a relatively short one on Conjugate Pairs, then I will cover seven types of what are called Unique Rectangles, (split into Part 1 & Part 2). And many more tutorials after that...... Stay tuned!

[@jamiemer1109]

When I was asked how many possible bi-value cells there were, my thinking was to use the math combination formula. That formula is nCr = n! / r! (n - r)! N is the total number of objects and R is how many we are picking. In this case, we are picking 2 digits out of 9 digits. Therefore N = 9 and R = 2. By the way, the exclamation mark is called a factorial which is a number times all its lesser integers. Sure enough, the answer I got in the end was 36! I guessed it right on my first try!

[@SudokuSwami]

Well done. (Yes, I know what factorial means.... haha)

[@SudokuSwami]

Please be sure to visit sudokuswami.com for an Outline of the Entire Course, and info about upcoming new Videos!

[@satorikomeiji3043]

16:40 This can be done using Combination, C(9, 2) = 9 * 8 / 2 = 36

[@waynefollett]

I am using the app brainium and have collected 232,058 points. I have difficulty remembering many of the lessons; BUT I just found my first the Bug + 1 solution. I continue to learn and try to memorize!

[@SudokuSwami]

That's great. Congratulations! Good luck. :-))

[@hosseinebrahimi3451]

My answer was 2916

[@SudokuSwami]

I think you're a little high.

[@hosseinebrahimi3451]

@@SudokuSwami no no no listen to me. How many bi values we could have? 36 possiblity for each of 81 cells. Cause we might have two or three of the exact same bi values in a puzzle for an instant. We should be able to distinct them from each other. So it leaves us with 81x36=2916

[@SudokuSwami]

You are missing the point. I am just talking about the possibilities for any ONE particular Cell.