Remote Pairs / Sudoku Tutorial #29

[@noeldillabough]

At first I was like "this is simply two XY chains" but then I saw how great it was because as a human you can spot these very easily and be very productive! Loved it!

[@shirleyw8720]

Best range of introductory music on KZbin ❤

[@johnnason2203]

An excellent treatise on Remote Pairs, much better than the other explanations I have read.

[@SudokuSwami]

Muchas gracias, amigo. How much do I owe you?? Ha ha!

[@sastryugk2816]

Great explanation and can result in helpful deductions. Keep up the good work Swami.

[@CasaErwin]

You've done it again, Jako. Great explanation. I looked at some other explanations my search turned up and they all used such convoluted logic they were uninteligible. Most of them only used four linked pairs and only used the end points for eliminations.

[@myViewTube123]

At 27:02, r7c5 can see both blue and yellow cells. It’s also a red cell.

[@SudokuSwami]

True.

[@horsechenggaming5888]

Hype for a bonus part!! And the remote paris part is much detailed than the video I've seen before. Thank you sooooo much!

[@SudokuSwami]

Glad you enjoyed it..... :-))

[@iCYY]

This one is easy and can be put into practice right away. Thanks for this great video as always.

[@kfilesnevada6815]

I appreciate your clear teaching methodology. Thank you.

[@thomaswilke6312]

Great lesson! Thank you so much for the lesson

[@SudokuSwami]

Glad you enjoyed it, Thomas. Welcome aboard. :-))

[@eAKINITO]

Thank you so much, dear Swami, for this new quite powerful technique.

[@alexwolf5547]

12:17 why are those cells red? The green ones i understand. Thx

[@SudokuSwami]

The two Green Cells cannot contain a 4 or a 5 simply because of the Naked Pairs in the two Columns. But the four Red Cells ALSO cannot contain a 4 or a 5, because they can SEE BOTH a Blue Cell and a Yellow Cell, one of which MUST be a 4 and one of which MUST be a 5. The four Red Cells can all see the Blue Cell in Block 4 and the Yellow Cell in Block 6. Those two Blue and Yellow Cells act like a Naked Pair, even though they do not see each other. This is the Power of Remote Pairs. Please watch that segment again, and listen carefully to what I am saying. You'll get it. Good luck! :-))

[@alexwolf5547]

Sudoku Swami thx yes . I understand now :) Great videos looking forward to learn new stuff on this channel

[@sudokucafe]

If you look closely at the pattern it is a skyscraper with the 4s and the 5s.

[@SudokuSwami]

I hope this comment stays at the top of the list, so everyone can readily see it. I wish now, that I had mentioned the derivation of the name, "Remote Pairs," in this Tutorial. I guess I thought that it was obvious, but apparently, it was not; at least not completely. So, here is my take on it. Connecting all the Naked Pairs, in such a way that there are four or more identical Bi-Value Cells linked together, results in any two of those Cells, of opposite polarity, i.e., of opposite color, or an A Cell and a B Cell (as described in the Video), acting as an "effective" Naked Pair, even though they do not "see" each other. Cells such as these, are not directly linked, but are rather linked because of the implications of the Chain of Pairs. They are "remotely" linked, and are "remotely" located with respect to each other. Any two Cells in the Chain that CAN see each other, are simply Naked Pairs. And any two Cells in the Chain of opposite polarity, that do NOT see each other, are indeed Remote Pairs.

[@johnnason2203]

Thanks Swami for reinforcing that the pairs have to be linked, not some pairs tossed about the puzzle.

[@SudokuSwami]

If the Pairs are NOT linked, no conclusions can be drawn from them. :-))

[@s.b.easwaran7563]

Swamiji, I return to comment after a long time :-). Just browsed through these comments and read this. I think what you have written here needs mentioning on the video too. Seeing RPs as XY-chains, and Simple Colouring (Type I), and "effective naked pairs", in my humble opinion, is necessary to reinforce the concept, even though, as you say, one doesn't need to think of RPs as anything other than RPs to get done with a puzzle. But seeing them in those additional/alternative ways both reinforces memory and goes a long way towards building a big picture -- a "unified theory" or a bringng it all together, as it were--in the minds of solvers. What do you think? And apologies if it seems like I'm labouring a point -- or perhaps belabouring it! :-) Take care. Your work is excellent. That's a point I will never tire of labouring!

[@WindowsXP_YT]

Remote Pair at 17:29 1. A link is a line connecting two notes together. In a weak link the two notes cannot both be correct at the same time. In a strong link one of the two notes must be correct. 2. Connecting strong and weak links, in an alternating fashion, creates a "chain". Chains must always start and end with strong links. 3. Notice the chain of squares where each square only contains the notes 2 and 3. 4. Case 1: Imagine placing 3 on this end of the chain. Then, these notes cannot be correct. 5. Case 2: Now imagine erasing 3 from that same end of the chain. Again, these notes cannot be correct. 6. In either case these squares cannot contain 2 or 3.

[@Ruotiukk]

I hope r5c7 at 26:52 is just something you missed, not something I don't understand. Great videos, some of the best educational content online!

[@SudokuSwami]

Hello. I looked at 26:52, and in R5C7, there is only a 5 and a 9. So I realized there must be a typo in your message. Upon further inspection, I noticed a Candidate 2 in R7C5, that can see both a Blue Cell and a Yellow Cell, and you are right.....I missed it! That Candidate 2 can be eliminated. I may be the Swami, but I am still only human. Ha ha. Good luck.

[@Ruotiukk]

@@SudokuSwami Ah, you are correct, messed up the rows and the columns there!

[@SudokuSwami]

No problema, amigo.

[@s.b.easwaran7563]

Hello Swamiji: You explain (approx 10:40 onwards) how Remote Pairs can be seen as two XY-chains, and yes, I see the logic. Only writing to say that I never thought of them that way. Instead, I always thought of them as 2-ply or 2-strand Simple Colouring of the Colour Trap kind. Do correct me if I'm wrong, but I think that's a valid way of looking at RPs too -- at least that's how I've seen them all along! 🙂 I guess the mind tends to fixate on one way of seeing something and avoids alternatives!

[@SudokuSwami]

Yes, you can look at Remote Pairs, as two XY-Chains, two X-Chains, or Simple Coloring. But the whole point of identifying Remote Pairs, is that you DON'T have to think of all that other stuff. It's easier to just think of them, and see them, as Remote Pairs. :-))

[@s.b.easwaran7563]

@@SudokuSwami Exactly, Swamiji. One needn't look at RPs as anything but RPs. I was trying to make the point that, as an alternative/adjucnt way of looking at RPs, I fixed upon 2-ply Simple Colouring, and not XY-chain, and didn't think any further than that.

[@SudokuSwami]

Regardless of which perspective you use, the results will be the same. So you should simply think of it, the way that is most convenient, and most easily recognizable for you. Good luck!

[@richardvanderpool7540]

Swami, I understand the concept behind remote pairs, I have a problem with my cell phone, I can't color the cells. Until I can see the colors in my head I had to come up with a procedure. I use a dry erase marker to highlight the cells. I just solved a puzzle with five connected bi value cells. I would not have solved this puzzle without your help!! Thanks! Richard Vanderpool

[@SudokuSwami]

Ha-ha. Great! Nice goin'.

[@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!

[@kskaliprasadkotagal6468]

Beautiful

[@mahmoudtabbara9667]

Dear Swami, thank you so much for this video and all the previous ones ! I am a big fan and you make things so easy to understand. I sometimes have a hard time spotting patterns, because the app I use does not have colouring option. Could you recommend an app for Android that has this option ? Thank you !

[@SudokuSwami]

Please send an email to [e-mail] for a rundown of various software. Thank you.

[@mirekt1822]

Thank you Swami. And again I have one more "weapon" in solving sudoku :-)

[@SudokuSwami]

Hello Mirek. Glad you're still with me.

[@mirekt1822]

Hi Swami, of course I'm here and I'm waiting for your every video. I would be here and with you as long as you publish your posting. And probably even longer. Becouse I'm going back to your older movies...

[@kathleenliegeois9925]

belle musique d'introduction

[@adelinazaballero6349]

Now I have another strategy up my sleeve. Thanks sir. By the way let me guess this strategy is called remote because the eliminated candidate is sometimes remotely positioned from a pair.

[@SudokuSwami]

The term "Remote Pairs," is derived from the fact that the network of connected Naked Pairs, results in certain pairs of identical Bi-Value Cells (of opposite polarity) that act as "effective" Naked Pairs, even though they do not see each other, i.e., the two Bi-Value Cells are "remotely" located from one another.

[@dad9646]

Yes I went to starbbucks

[@SudokuSwami]

Good to know.

[@SudokuSwami]

Please visit sudokuswami.com for more info and news about upcoming Videos!