📕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 00:15 It’s Solving Time 00:25 What Is Snyder Notation? 01:15 Question Of The Day 01:31 Snyder Problem #1 02:36 Snyder Problem #2 05:14 Snyder Problem #3 07:52 BONUS Sudoku Tip #1 08:31 Snyder Problem #4 10:03 BONUS Sudoku Tip #2 11:15 Snyder Problem #5
I use Snyder all the time but often miss the naked pairs/tripples as you suggest. This has been a really good instruction on how to look deeper and beyond the obvious Snyder - thanks
Nice puzzle. Relatively low difficulty ratio compared to what I have learnt to expect from Mr. Newman, but cleverly built in such a manner that the puzzle never totally collapses until very late. The most typical instance of the limitations of the Snyder notation system is the 269 triple in the middle and upper portion of block 3. Having learnt to use Snyder notations, I came to realise that I did not truly need them. mnemotechnic use of restrictions such as the 269 triple is just as efficient. I am not a fast player, so in this case, I needed 22 minutes to solve the puzzle notation free. Your demo is aexplains very well the inherent limitations of Snyder notations. Thanks.
I use snider notation as the 1st choice, in the 2nd run I look for triplets and other restrictions like you mentioned for the 2s. And for columns and rows as well to find pairs or singles.
It seems like the first couple of problems were a result of choosing not to corner mark at all when there were more than two candidate positions for a digit, and the rest would only be problems if you tried to solve using only corner marks and not centre marks as well. Those restrictions seem a bit arbitrary. Do many people approach sudokus with those restrictions? We obviously don't want to end up with a mess of corner marks everywhere, but I would certainly commonly mark as many as three cells in a block. And I probably use centre marking more than corner marking. I noted your comment at the start about variant sudoku. I do more variant sudoku than ordinary sudoku. Maybe that has influenced how I use corner and centre marking.
Perhaps. Several of the variant rules push boundaries out past 3x3 blocks (like with Killer Sudoku). I have seen solvers in Classic Sudoku mark 3 cells when they are used to only marking 2, then once they solve 1 of the 3, they automatically solve one of the other 2 because they forget about the 3rd cell.
With the title, I was looking forward to proclaiming, "Not-quite-Snyder notation triumphs again!" But the solve of the puzzle was rather different. I was always interrupted in my cornermarking by filling out heavy houses and placing digits. Occasionally I was stuck, but then I noticed a digit that I'd missed earlier. The most advanced positions I found were a triple and a quad. I'm under the impression that Snyder notation was invented for paper solving. It wouldn't necessarily apply to computer solving. 9:30 I found the 269 triple while cornermarking 9s. It was straightforward having marked three 6s and two 2s. (And this was another interruption of my cornermarking. I also found the 37 pair and placed the 8.)
Nice job, Jon. Did you happen to catch this when it first came out last month on the GAS channel? I found it a bit tricky so that is why I also wanted to feature it.
@ indeed I did Timberlake! I took 8 minutes to solve first time round. I still like the notation as a general rule to start first eliminations. Do I need to renew my annual buy you a coffee Timberlake? I thought it came out in January but don’t perceive I have paid yet?
I use the Snyder in my head but don't write them down. Too slow. I go through the easy solves first, then look for triples. For example the 2, 6,9 that you explained. Very easy to spot those with some practice.
Finally freed from my 24 hour mute on UA-cam. Their bots think it's cyberbullying when it isn't... but anyway I just solved this 10 seconds short from 7 minutes. Solved with hidden triples, scannings, and claimings. I'm betting it's in the video as well besides the Snyder Notations.
I make Snyder marks on all hidden pairs; may wait for a 3rd go-round for the pairs not in a row or column. And, if I may make a suggestion, I would phrase this title 'Limitations of Snyder Notation', rather than 'Problems with Snyder Notation'
📕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
00:15 It’s Solving Time
00:25 What Is Snyder Notation?
01:15 Question Of The Day
01:31 Snyder Problem #1
02:36 Snyder Problem #2
05:14 Snyder Problem #3
07:52 BONUS Sudoku Tip #1
08:31 Snyder Problem #4
10:03 BONUS Sudoku Tip #2
11:15 Snyder Problem #5
I use Snyder all the time but often miss the naked pairs/tripples as you suggest. This has been a really good instruction on how to look deeper and beyond the obvious Snyder - thanks
Nice puzzle. Relatively low difficulty ratio compared to what I have learnt to expect from Mr. Newman, but cleverly built in such a manner that the puzzle never totally collapses until very late. The most typical instance of the limitations of the Snyder notation system is the 269 triple in the middle and upper portion of block 3. Having learnt to use Snyder notations, I came to realise that I did not truly need them. mnemotechnic use of restrictions such as the 269 triple is just as efficient. I am not a fast player, so in this case, I needed 22 minutes to solve the puzzle notation free. Your demo is aexplains very well the inherent limitations of Snyder notations. Thanks.
Great jpb! Now I understand when to deviate from Snyder to solve.
I use snider notation as the 1st choice, in the 2nd run I look for triplets and other restrictions like you mentioned for the 2s. And for columns and rows as well to find pairs or singles.
03:57 pretty good! About the problems wirh Snyder Notation: I don't have any of these because I like to pencilmark... and to use colours! 😀
Thanks!
It seems like the first couple of problems were a result of choosing not to corner mark at all when there were more than two candidate positions for a digit, and the rest would only be problems if you tried to solve using only corner marks and not centre marks as well.
Those restrictions seem a bit arbitrary. Do many people approach sudokus with those restrictions?
We obviously don't want to end up with a mess of corner marks everywhere, but I would certainly commonly mark as many as three cells in a block. And I probably use centre marking more than corner marking.
I noted your comment at the start about variant sudoku. I do more variant sudoku than ordinary sudoku. Maybe that has influenced how I use corner and centre marking.
Perhaps. Several of the variant rules push boundaries out past 3x3 blocks (like with Killer Sudoku). I have seen solvers in Classic Sudoku mark 3 cells when they are used to only marking 2, then once they solve 1 of the 3, they automatically solve one of the other 2 because they forget about the 3rd cell.
Off and on, I bragged about cornermarking three cells in a block -- "Not-quite-Snyder notation" was my term. I often catch things I'd otherwise miss.
With the title, I was looking forward to proclaiming, "Not-quite-Snyder notation triumphs again!" But the solve of the puzzle was rather different. I was always interrupted in my cornermarking by filling out heavy houses and placing digits. Occasionally I was stuck, but then I noticed a digit that I'd missed earlier. The most advanced positions I found were a triple and a quad.
I'm under the impression that Snyder notation was invented for paper solving. It wouldn't necessarily apply to computer solving.
9:30 I found the 269 triple while cornermarking 9s. It was straightforward having marked three 6s and two 2s. (And this was another interruption of my cornermarking. I also found the 37 pair and placed the 8.)
6:57 to solve. Nice puzzle. Going to watch your solve now Timberlake to understand why there are restrictions.
Nice job, Jon. Did you happen to catch this when it first came out last month on the GAS channel? I found it a bit tricky so that is why I also wanted to feature it.
@ indeed I did Timberlake! I took 8 minutes to solve first time round. I still like the notation as a general rule to start first eliminations. Do I need to renew my annual buy you a coffee Timberlake? I thought it came out in January but don’t perceive I have paid yet?
@@SmartHobbies just realised I don’t pay monthly for your buymeacoffee page. Just sent you $50 and wish you a very happy new year. Blessings 🙏
@ It should renew automatically. And thanks for the coffees!
I use the Snyder in my head but don't write them down. Too slow. I go through the easy solves first, then look for triples. For example the 2, 6,9 that you explained. Very easy to spot those with some practice.
I always use it without having known what it was, lol. I get what a “pointing” pair is but what is a hidden pair?
I never use Snyder notation. I only used centered numbers because they are easier to read and much less cluttered.
Finally freed from my 24 hour mute on UA-cam. Their bots think it's cyberbullying when it isn't... but anyway I just solved this 10 seconds short from 7 minutes. Solved with hidden triples, scannings, and claimings. I'm betting it's in the video as well besides the Snyder Notations.
I make Snyder marks on all hidden pairs; may wait for a 3rd go-round for the pairs not in a row or column. And, if I may make a suggestion, I would phrase this title 'Limitations of Snyder Notation', rather than 'Problems with Snyder Notation'