Yea I did talk about this in another video, and I'd prefer to use other methods to solve Sudoku puzzles. I'll solve for a digit based on uniqueness only if I get very stuck (I don't think I saw this unique rectangle anyway XD) Actually I just noticed, 6 is forced into that cell regardlessly because of the '6's in column 5 (block 8) and row 3 (block 3)

Sometimes luck cannot be explained~ Congrats! :D

@@karsonnnpuzzles Also, there's a diff link that has better tools to do NYT Sudoku if you want. It helps me out much better.

Glad to know the video helped :)

Good to know that!

Thank you :)

Glad to know the video helped! It's alright, we all have those moments... wish you the best Sudoku journey ahead :)

5:00 In row 4, the digit '5' cannot go into the left-most cell, so it must go into either R4C7 or R4C9. And because '5' is guaranteed to be placed into one of those two cells, no other cells in that block can contain '5'. Now look at column 8, '5' is still a missing digit. It sees '5' at R8C8 and cannot go into R5C8 & R6C8 as proven, so '5' is forced into R2C8 for that column. 5:20 After '5' occupied that cell, I can immediately force '6' into R6C8 as it is still missing from column 8 (since R5C8 & R8C8 see another '6') Hope this explanation helps! Feel free to ask anything else~ [R] = Row / [C] = Column

I know, that's why I stated "no commentary" for this video~

I got it ! Row 2 column 1 can't be a 4 because 4 has to go in column 3. Row 2 column 1 can't be a 3 because 3 has to go in row 2 column 4 or 5. That is the thought process right?!

Since the three open cells (row 2, columns 3, 4, 5) can ONLY contain the three digits (2, 3, 4), those three cells form a triplet and eliminate 2, 3, 4 from all other open cells in the same row. Another way to think about it is that I only marked down 2, 3, 4 in those three cells, so the missing digits of row 2 (1, 5, 6, 8) can only go into the other four open cells, eliminating 2, 3, 4 from R2C1. If you can't process or still don't understand the logic behind, you may try substituting 3 or 4 into R2C1 and see what happens, the result: one cell in row 2 would end up being empty & one of the digits cannot be placed. You may view the concept from different angles, but nevertheless, hope the explanation helps :)

Thank you :) I've played Wordle for a long time indeed

That seems quite challenging to do in a hard difficulty level. I've only done that before in easier levels but never in hard Thanks for your suggestion and I may try it one day after I recover :)

@@karsonnnpuzzles I invite you to see how I go about it on my channel. It's a gratifying feeling to get rid of pencil marks

Thanks! Great job to you as well :)

Actually I only record videos without commentary on weekends, so there are clearer explanations in the videos on weekdays. If you get stuck in any NYT Sudoku puzzles, feel free to comment what you don't understand and ask me to explain in detail. It's completely fine to struggle. Just reach out, I'm always happy to reply you :) You may comment something like: At 21:53, why is "9" forced in R8C4? Just include: [ Time of video / Digit or Block or Cell (row/column) / (what you don't understand) ] (Your English isn't bad at all, keep going and don't mind too much about it!)

I don't really comment even in videos without commentary, as I use my cursor to highlight cells, in order to indicate which part I'm focusing on or where you should look at. Sometimes it gets a bit confusing without explanation, so it's alright to point out where you can't follow :)

I understand your thoughts, But if you look at block 1, C2R1 & C3R1 are the only two cells where the digits 2 and 4 can go in, so that forms a 2/4 pair and none other digits can be placed in those two cells. That forces 9 in R2 for block 1 and eliminates 9 in C4R2. Hope you understand now :)

Yes! Thank you!

No worries! :D

Nice! :)

No problem, glad to hear that! :)

Thanks for your support! :)

​@@karsonnnpuzzles one day you'll have a dimond play button

Aw thanks Yeah that would be a dream but it's a long long way

I put the link in the description for every video. It's just the default website of NYT Sudoku: www.nytimes.com/puzzles/sudoku

@@karsonnnpuzzles ok. Thanks. It doesn't rotate on a mobile phone.

Sometimes you just get lucky :) I thought ?EA?? was possible and meant was the first word that came to my mind so I just tried it~

I know! Apologies... :/ Sometimes I'm just not focused enough, or it is really tricky to me

What a coincidence :)

@@karsonnnpuzzles fr my actual name is karson:)

:)))

Thanks :D