You were able to solve the puzzle solely by applying the Snyder notation. In my opinion that wasn't a hard puzzles at all. But you did all that was necessary.
ONLY PAY ATTENTION TO THE (only-8-) to the left...there can be only one 8 in every row across and only one 8 going down too..so if you follow the 8 across your see 8.4.2.6.....now follow the 8 going down...3.8.4.. now if you take a look at the 9 squares where the two 8’s meet...the 2 blocks before the (“6”), -8’s can’t go into those and the 2 blocks before the (“4”), -8’s can’t go into those neither....so to find out “WHERE CAN THE (“8”) GO IN ONE OF THE 9 SQUARES.?. NOW GO TO THE LAST 9 SQUARES AT THE BOTTOM RIGHT CORNER...the (“8”) going across takes care of the three squares..the (“8”) going down takes care of the three squares...now you already know that there is a “1”- “3” in both corners so that would leave the bottom two corners but you already know that an (“8”) will be going to one of the two squares in the last row going down BELOW THE 4 AND ABOVE THE 6 or BELOW THE 6 AND ABOVE THE 3...so with that the bottom right corner set of numbers .1-9. There can only be the one square that allows for the (“8”) to go in
It's basically an entry level puzzle. No Jellyfish or Swordfish, no hidden triples, no naked triples. No Y-Wings, no empty rectangles. Basically it's a 101 entry level Snyder puzzle. You should check out Cracking the Cryptic where they solve real puzzles.
I've always enjoyed Sudoku, but the more difficult puzzles usually frustrated me to quit. I started to apply this same technique using the pairs after watching these videos and many of the more difficult puzzles just don't seem so any longer. It's an extremely efficient technique!
no ... because when you look at the right center block, the 8 on the left and the 8 in the upper center, require 8's to be placed in the right empty squares of this block, thus forcing the 8 to the left
The jumps in logic at the beginning (especially with the 8) took me a bit to work out. I guess with more practice it will be easier to spot where numbers have to go.
Note in 6th minute when you place candidates 2 in rows 1 and 2 of c 7, the 2 is in fact restricted to r2c7 due to the intercepring 79 in that row (c5 and 6. The puzzle relatively easy, so I did it without the help of pencil marks, in under 16 minutes. Enjoyable ride. The snyder notations you teach is a great one to solve more difficult puzzle, or in fact move faster for a puzzle such as this one..
I'm from Thailand. I've been playing Sudoku for 1 month and 30 days. I'm an expert player and I'm fascinated by the technique. I spent 200 minutes per game. Of course, what I got after the end of the game was the answer to one puzzle, one technique per game, and I saw you write. I have 200+ puzzles, 200 minutes, 200 puzzles. I will not give up.
This is simple puzzle. Hard and diabolic puzzles are those where one has to presume one or sometimes two numbers and has to use trial and error method.
I have been learning sudoku puzzle solving for sometime, watching the videos of half a dozen experts. Among them, I like the most his style and method of teaching. In this video he has made use of the technique DRE/DCE which is frequently used by a noted expert. I do not find any fault with his approach here. It is a well-known axiomatic concept that a puzzle must always have a unique solution. If it transgresses this norm, it becomes an invalid sudoku puzzle. I don't find anything wrong with his solving the puzzle here. However, I would expect him to take up solutions of some expert level/evil sudoku puzzles which should have an element of enjoyment for a sudoku aficionado.
Except you are avoiding an audience of novices. For me, just having learned Sudoku, his solving methods were great. For the longest time I was stuck on easy and moderate. Now I am doing hard and demanding. So for me, this was an excellent video.
Respected Sir, I love your puzzle solving technique by relying on pairs ie conjugate pairs and naked pairs. It helps me to solve even hard puzzles. But in this video at video time 1.11 you have placed digit 8 in cell R9-C6. At this point of time you have two 8s. One in column 6 Row 8 (C6-R8) and Column 8 - Row 3 (C8-R3). That leaves two empty spaces in Row 9 in block 9. Yet you put digit 8 in cell R9-C7 while in the same row in Column 9 the cell is empty. I think you should have put two candidates 8 one in cell R9-C7 and in the second cell R9-C9. Am I wrong? Could you explain how you could place 8 when the other cell in the same block and same row is still empty.
The answer is in box 6, where h 8 is restricted to c9. The only place for n 8 in c7 would have been in row 6, which is blocked by the intercepting 8 in r6c2.
I have been working on a puzzle for a few days now. I have done all your techniques and I still can't solve it. Can I email it you and maybe you could do a video solving it?
I think dear,you have put 8 wrong in right below under 1 &4. It can be under extreme right column 4,6 and 3. How you put direct 8 under 1&4 in 9th block
Inquiry: You know how some books have the sudoku answers at the back right? So I solved a puzzle and I rechecked it twice, I got the numbers all right (no repeats, no missing)... but when I checked the answer at the back, they’re not the same 😂 I got some numbers on the same cells but majority are on different placements (except of course the given ones). Is this possible? Or maybe I’ve done something wrong.. I’ve rechecked my answers and they’re fine but different from the book’s.
If you're still talking about sudokus, you will have a hard time to find a single sudoku that 'requires' trial and error (provided it has a unique solution).
Why is this demanding or hard? This was easy. I'm not an expert. When I see the title of a clip that says a puzzle is hard and demanding, I watch it to see if there could be a tip, because there are a lot of puzzles I still have trouble with. This puzzle was basic. Also you don't need to circle things. If there two squares are limited to two numbers, nothing else can go in there.
When he said ,”I don’t know how many numbers were in the beginning, probably 22 or something, I didn’t count them,” I counted them and there were 22 numbers in the beginning( I counted them by counting the black numbers.)I was like, Dang, how did he guess 22? He’s like the best guesser at finding out how many numbers there were in the beginning of a Will Shortz Surrender to Sudoku book on this dumb ol’ planet.
I just stated playing a few months ago. Let me know if this is good or not: I do easy puzzles in about 5 to 6 minutes and Expert (hardest) puzzles in about 13-15 minutes at Sudoku.com. I can do the medium ones in about 8 or 9 minutes. I like the online ones since there's no erasing and rewriting stuff, the PC does all that automatically.
It's a good tutorial for an intermediate level. A hard level would be like this: _1______3 _________ _____46_7 _9_______ ___1_3___ _43___8_5 6__8___2_ __7_5_98_ __5_4_7__ I've solved it with the trial-error method, I'd wish to know a better method.
@@OzymandiasSaysHi TH-cam is misunderstanding some characters. See this image please: drive.google.com/open?id=1x8sqbNFd5Wq7lqc9KjRGIES_DvJBNijL This motivated me to make a program in Python, which can resolve any Sudoku table so far: github.com/warcayac/python-sudoku-solver
Very helpful. Thanks.
You were able to solve the puzzle solely by applying the Snyder notation. In my opinion that wasn't a hard puzzles at all. But you did all that was necessary.
Your Sudoku tutorials are easy to follow and down-to-earth. Thanks.
Nicely done!
The sound of the rubber scratching the paper gives me the shivers. Enjoyed the rest of the video....well solved!
very good tutorial and learn lots from this video
Very good video, good explaining and nice clear voice, thanks so much. Please get a good eraser.
Simple puzzle , thanks!
Best, fast and clear explanation ever... Thx!
at 1:00 there could have been an eight in the bottom right cell too, is it not so?
Neil Mitchell no
Thats what I thought! Don't understand how he knew the 8 would be there
@@fpatel7772- Yeah, I was thrown by that too until I realised that the 8 in the block above it could only go in the right column.
@@jesuiscequejesuis2267 Ohhhhh i see! thanks!
ONLY PAY ATTENTION TO THE (only-8-) to the left...there can be only one 8 in every row across and only one 8 going down too..so if you follow the 8 across your see 8.4.2.6.....now follow the 8 going down...3.8.4.. now if you take a look at the 9 squares where the two 8’s meet...the 2 blocks before the (“6”), -8’s can’t go into those and the 2 blocks before the (“4”), -8’s can’t go into those neither....so to find out
“WHERE CAN THE (“8”) GO IN ONE OF THE 9 SQUARES.?.
NOW GO TO THE LAST 9 SQUARES AT THE BOTTOM RIGHT CORNER...the (“8”) going across takes care of the three squares..the (“8”) going down takes care of the three squares...now you already know that there is a “1”- “3” in both corners so that would leave the bottom two corners but you already know that an (“8”) will be going to one of the two squares in the last row going down BELOW THE 4 AND ABOVE THE 6 or BELOW THE 6 AND ABOVE THE 3...so with that the bottom right corner set of numbers .1-9. There can only be the one square that allows for the (“8”) to go in
Fine explination on medium puzzle.
Great job
no triples, no quads, nothing special at all, in all this would be classified as a medium sudoku at best
Yes, just at first glance it has all the appearance of medium sudoku. Lots of immediate fill-ins 3s, 4s, 6s, 7s,
It's basically an entry level puzzle. No Jellyfish or Swordfish, no hidden triples, no naked triples. No Y-Wings, no empty rectangles. Basically it's a 101 entry level Snyder puzzle.
You should check out Cracking the Cryptic where they solve real puzzles.
Not everyone is an expert and thinks that this puzzle is easy. I didn't. Thanks very much.
I've always enjoyed Sudoku, but the more difficult puzzles usually frustrated me to quit. I started to apply this same technique using the pairs after watching these videos and many of the more difficult puzzles just don't seem so any longer. It's an extremely efficient technique!
YOU SHOWED ME POSSIBILITY OF BLOCKING NUMBER ( IN THIS CASE NUMBER 8) BY EXTENSION AND LCR METHOD. THIS METHOD REALLY WORKS .
You Killed it!
Very clear explanation... thank you
I didn't see or hear any explanations. A why are you putting x down and not y? Of course I am a newbie.
شكرا لك وارجو ان يكون ترجمة الى اللغة العربية
How did you know where to put that first 8? It could have also gone into the bottom right corner, no?
no ... because when you look at the right center block, the 8 on the left and the 8 in the upper center, require 8's to be placed in the right empty squares of this block, thus forcing the 8 to the left
This was a pretty easy one
💯♥️♥️♥️♥️♥️
Nice that you keep cleaning up.
The jumps in logic at the beginning (especially with the 8) took me a bit to work out. I guess with more practice it will be easier to spot where numbers have to go.
Thank you , I like your technique in solving the sudoku puzzles also I would like to mention that the audio sound is very clear. My best regards
THANKS 😊
2:47 in and I don't see you teaching anything here thus far. I am only able to follow you because I'm already fairly familiar with Sudoku.
Note in 6th minute when you place candidates 2 in rows 1 and 2 of c 7, the 2 is in fact restricted to r2c7 due to the intercepring 79 in that row (c5 and 6. The puzzle relatively easy, so I did it without the help of pencil marks, in under 16 minutes. Enjoyable ride. The snyder notations you teach is a great one to solve more difficult puzzle, or in fact move faster for a puzzle such as this one..
8:23
10:00
10:02
14:16
16:43
I'm from Thailand. I've been playing Sudoku for 1 month and 30 days. I'm an expert player and I'm fascinated by the technique. I spent 200 minutes per game. Of course, what I got after the end of the game was the answer to one puzzle, one technique per game, and I saw you write. I have 200+ puzzles, 200 minutes, 200 puzzles. I will not give up.
intel 9, 1 month and 30 days is basically 2 freakin’ earth months. Did you mean 2 months or 1 year 30 days (1 year and a month)?
200 minutes😂😂😂 u really know how to make simple things complicate
@@ttvurmom6185 lol. I almost fell off my chair. too funny.
Nice
This is simple puzzle. Hard and diabolic puzzles are those where one has to presume one or sometimes two numbers and has to use trial and error method.
Does that happen sometimes? I thought that if you have to guess, it's because you missed something...
@@jugodenaranja2010 If it's a well designed hand crafted puzzle you should never have to guess.
I have been learning sudoku puzzle solving for sometime, watching the videos of half a dozen experts. Among them, I like the most his style and method of teaching. In this video he has made use of the technique DRE/DCE which is frequently used by a noted expert. I do not find any fault with his approach here. It is a well-known axiomatic concept that a puzzle must always have a unique solution. If it transgresses this norm, it becomes an invalid sudoku puzzle. I don't find anything wrong with his solving the puzzle here. However, I would expect him to take up solutions of some expert level/evil sudoku puzzles which should have an element of enjoyment for a sudoku aficionado.
Except you are avoiding an audience of novices. For me, just having learned Sudoku, his solving methods were great. For the longest time I was stuck on easy and moderate. Now I am doing hard and demanding. So for me, this was an excellent video.
How long it takes to solve a difficult one??
Respected Sir, I love your puzzle solving technique by relying on pairs ie conjugate pairs and naked pairs. It helps me to solve even hard puzzles. But in this video at video time 1.11 you have placed digit 8 in cell R9-C6. At this point of time you have two 8s. One in column 6 Row 8 (C6-R8) and Column 8 - Row 3 (C8-R3). That leaves two empty spaces in Row 9 in block 9. Yet you put digit 8 in cell R9-C7 while in the same row in Column 9 the cell is empty. I think you should have put two candidates 8 one in cell R9-C7 and in the second cell R9-C9. Am I wrong? Could you explain how you could place 8 when the other cell in the same block and same row is still empty.
The answer is in box 6, where h 8 is restricted to c9. The only place for n 8 in c7 would have been in row 6, which is blocked by the intercepting 8 in r6c2.
What happened to the break?
I have been working on a puzzle for a few days now. I have done all your techniques and I still can't solve it. Can I email it you and maybe you could do a video solving it?
no. .............................................................lol
I think dear,you have put 8 wrong in right below under 1 &4. It can be under extreme right column 4,6 and 3. How you put direct 8 under 1&4 in 9th block
Inquiry: You know how some books have the sudoku answers at the back right? So I solved a puzzle and I rechecked it twice, I got the numbers all right (no repeats, no missing)... but when I checked the answer at the back, they’re not the same 😂 I got some numbers on the same cells but majority are on different placements (except of course the given ones). Is this possible? Or maybe I’ve done something wrong.. I’ve rechecked my answers and they’re fine but different from the book’s.
My understanding is that there is only 1 possible solution to each puzzle. I would like to see these 2 different solutions.
yes medium level puzzle
Haha, Thank you!😁
This is not a hard one. Quite straight forward. There are puzzles where none of the techniques works out and we have to go on a trial and error
If you're still talking about sudokus, you will have a hard time to find a single sudoku that 'requires' trial and error (provided it has a unique solution).
You prefer to solve more complex strategies instead of singles or a full house.
Why is this demanding or hard? This was easy. I'm not an expert. When I see the title of a clip that says a puzzle is hard and demanding, I watch it to see if there could be a tip, because there are a lot of puzzles I still have trouble with. This puzzle was basic.
Also you don't need to circle things. If there two squares are limited to two numbers, nothing else can go in there.
No X-wings, no hidden singles, nothing special just basic good sudoku. But isnt there like star classification 1/5 etc, So this is maybe 3/5 ?
miss that you say "AHAA"Y
MI BUEN AMIGO, DESEARIA SAQUES PUNTA A TU LÁPIZ, NO SE VE LO QUE ESCRIBES. GRACIAS VOLVERÉ A MOLESTARLE. GRACIAS
When he said ,”I don’t know how many numbers were in the beginning, probably 22 or something, I didn’t count them,” I counted them and there were 22 numbers in the beginning( I counted them by counting the black numbers.)I was like, Dang, how did he guess 22? He’s like the best guesser at finding out how many numbers there were in the beginning of a Will Shortz Surrender to Sudoku book on this dumb ol’ planet.
so funny.... thank you
Why the 1st 8 has to to ther!!!!!!!
That's a medium puzzle
The condescension of some of these comments is appalling. We are not all experts. Many of us are just learning so give the guy a break.
"Hard" ;)
Actually, a pretty simple puzzle
This isn't hard by any metric...
I think I'm faster answer sudoko that him later I'm upload sudoko to enhance in memory to enjoys everybody
It hasn't a unique solution.i solved this sudoku in 5 more ways..
This wasn't hard at all. Why don;t you solve a hard one from New York Times website.
I just stated playing a few months ago. Let me know if this is good or not: I do easy puzzles in about 5 to 6 minutes and Expert (hardest) puzzles in about 13-15 minutes at Sudoku.com. I can do the medium ones in about 8 or 9 minutes. I like the online ones since there's no erasing and rewriting stuff, the PC does all that automatically.
Not a hard sudoku? Absolutely straight-forward requiring no advance techniques?
It's a good tutorial for an intermediate level. A hard level would be like this:
_1______3
_________
_____46_7
_9_______
___1_3___
_43___8_5
6__8___2_
__7_5_98_
__5_4_7__
I've solved it with the trial-error method, I'd wish to know a better method.
Your first line correctly has 9 characters, but your 3 final lines (and others) only have 7, so the puzzle set-up is unclear.
@@OzymandiasSaysHi TH-cam is misunderstanding some characters. See this image please: drive.google.com/open?id=1x8sqbNFd5Wq7lqc9KjRGIES_DvJBNijL
This motivated me to make a program in Python, which can resolve any Sudoku table so far: github.com/warcayac/python-sudoku-solver
Es lässt sich mit einem Skyscraper auf 9 lösen.
Toooooooooooooo easy ....come on Mylame...this is your lame sudoku puzzle ever