The Mindset That Makes “Solving Sudoku” MUCH Easier

The Mindset That Makes “Solving Sudoku” MUCH Easier - SHC 238

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@SmartHobbies 6 ай бұрын

📕Get my FREE Solving Guide that will help you solve over 80% of all Sudoku puzzles🧩to include NYT Hard👉👉www.buymeacoffee.com/timberlakeB/e/125822 Timestamps 0:00 Intro 00:24 It’s Solving Time 00:44 Puzzle Story 01:13 Snyder Notation 02:21 Mindset Tip #1 03:19 Solving The First Cell 04:30 Finding The Next Pair 07:15 Mindset Tip #2 10:35 Solving The Green Cell 11:34 BONUS Tip 12:25 Neat Naked Triple Trick 12:55 Mindset Tip #3

@eugenetswong 6 ай бұрын

Wow! So, after you explained the 19 in box 9, I tried that for the other 8 boxes, and I'm amazed at how many new pairs I can find. Puzzles seem so much more accessible now. Thank you!

@SmartHobbies 6 ай бұрын

You are welcome and sounds like you are reaching a level of proficiency in your solving. Keep it up!

@eugenetswong 6 ай бұрын

@@SmartHobbies Thanks!

@georgesthibaudeau1533 6 ай бұрын

Mr. Kumar has a way to cause me to become a bit disorientd, but then you find a couple of areas of anchors for some digits and you begin to understand the dynamics at play. Here I started on the left side and got some mileage thanks to the fact that there needed in block 1 to be a 6 and 8 up or down with cell r3c1 being a 68. I should have taken a better look at the right side earlier, because then the 19 remote pair along col 7 immediately gets you going. With all the restrictions I had figured out at that point, the rest of the puzzle went fairly well: 18 and a half minutes notation free, and a whole lot of fun. Good demo, and thanks for coming up with another superb puzzle.

@SmartHobbies 6 ай бұрын

I’m glad you liked it Georges. I’ve really enjoyed the puzzles from this book, and I will admit some of them get me stuck for a while.

@ke9tv 3 ай бұрын

The hidden 24 pair is the real key. I don't think I ever marked the 19. Once you have the 24s and the next bunch of stuff that was pretty much the same as yours, the 9 in box 3 falls out because there's a pointing pair of 9's in box 6. 10hm39s - an unusually good time for me. I got lucky spotting the 24s as quickly as I did. Everything else is straightforward. That tough start is beautiful!

@SmartHobbies 3 ай бұрын

Nice job. I am glad to hear you found that 24 pair early on. Thank you for sharing!

@JohnRandomness105 6 ай бұрын

I went slow and steady as usual. A few digits had the slot-machine distribution, and 5s gave me a finned swordfish -- it allowed me to cornermark three 5s in a block rather than four, but was probably otherwise useless. In fact my second digit, an 8 in R5C8 was placed right where the 5 was removed, thanks to the first quad, 2348 in column 7. (My first digit was 5 in R3C4, thanks to a 24 pair in the row.) The green cell is one of a 19 pair, thanks to the first quad. It eventually became 9. 3:40 I got that 19 pair backwards. I was following my usual stuck routine, filling out blocks. After filling out blocks 3, 6, and 9, I tried an empty cell in block 1, R3C3. It gave me 42, which paired with 42 in R3C7. (I didn't spot the 2348 quad in column 7 until right after, even though it was visible before.) That quad gave me the 19 pair. I think that one of my major problems is missing something that is there, until I see it later than I could have. The 9 in block 3 that resolved the 19 pair, the lone 6 after placing 5 in block 9, and the quad in column 7, are all examples. 15:30 I wouldn't have been stuck there. I would have attacked the three bottom rows, with two, three, or four available cells in each.

@SmartHobbies 6 ай бұрын

Thank you for your feedback and insights as always, John 😎

@fabianminimal 6 ай бұрын

Still struggle a bit with hidden pairs, but getting more consistent at finding them now.

@fabianminimal 6 ай бұрын

BTW I did find the 24 naked pair first, before the hidden 19 that I found much later in the solve.

@SmartHobbies 6 ай бұрын

I am so glad to hear that. Nice job finding that 24 pair first. It was one of the key points of the solve.

@eugenetswong 6 ай бұрын

Fabian, I think the trick to finding some hidden pairs is to use digit in a block to clear out 3 cells in a row, and then try to clear out the other cells in the row. Then use that same block and digits to do the same in the overlapping columns. In other words, do what he did for the 19 pair in other blocks, rows, and cells. It's a lot easier than it sounds. You just have to get into a routine. Finding hidden pairs is the hardest of the easy challenges for me.

@eugenetswong 6 ай бұрын

I think that an easier way of thinking about this is that each given digit eliminates the candidates in the other 2 rows and 2 columns that overlap in that house. For example, 19 is eliminated from the other cells in block 9, and we should try to eliminate 1s & 9s in column 7, then 1s in column 9, & 9s in columnn 1. Then we do the same for rows 7, 8, & 9. Therefore, our strategy and routine, should naturally involve doing the same for all blocks and overlapping rows and columns. I really love Sudoku again.

@donmalone5824 Ай бұрын

seems satisfying to do the 79s in C3 first (the 1234 Leftovers feel seminal) that Leads to 19s in C7 and gets the 24s in R3 that crack the puz

@SmartHobbies Ай бұрын

Nice!

@AnonimityAssured 6 ай бұрын

A lovely grid, with a slightly tricky break-in but a very natural continuation (34 = row 3 column 4): 34 (hidden single, owing to pair in row), 22, 91, 88, 56, 68, 79, 18, 31, 85, 73, 98, 58, 36, 95, 94, 39, 87, 53, 27, 19, 23, 57, 64, 54, 62, 13, 25, 77, 82, 11, 33, 83, 28, 37, 99, 97, 92, 86, 71, 96, 14, 74, 24, 12, 76, 65, 68, 61, 48, 55, 52, 42, 59, 49, 51, 41, 16, 15, 46, 45. I imagine you've heard the sad news that Niels Malte Christensen has decided to stop making KZbin videos.

@SmartHobbies 6 ай бұрын

A video came up in my feed saying “final Sudoku solve.” I am sorry to hear that. Did he give a reason?

@AnonimityAssured 6 ай бұрын

@@SmartHobbies Well, he said that he has become bored with the NYT Hard Sudokus, which have always been his most popular, but which are often too predictable. (I have to agree with him that they are almost formulaic on most days, and only rarely do they surprise us.) He also said that making regular videos is time-consuming, and that he has been neglecting other activities. I really wish he had decided to reduce his output without abandoning it altogether. I still hope that he will find the odd gem that he deems worthy of recording, but I suspect he might be too proud to relax his resolve even slightly. He'll be missed by a small but loyal band of followers.

@SmartHobbies 6 ай бұрын

@@AnonimityAssured I appreciated his style for sure. I’ve seen others like Swami quit because the money you can make is not worth the effort. For a niche audience like Sudoku, you really have to do it because it’s your passion.