📕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 00:19 It’s Solving Time 01:22 Why Trial And Error Does Not Work 01:58 Sudoku Rating System 02:36 Trick #1 08:29 Trick #2 13:01 Setting Up Trick #3 14:45 Trick #3 16:40 Solving After Trick #3
At 8:30 I noticed a finned x-wing for 3 in cols 4 and 9 to eliminate 3 from r7c7. Then, using the colored cell technique, proved that r7c7 and r9c6 had to be different, so r9c9 has to be 3. This allows solving some other 3 cells and gives several 57 cells. At this point, regardless of what r4c6 is, r8c1 is 3. It unraveled from there. Yours was probably easier, but it shows that there is often more than one way to solve a puzzle.
Thank you for your question. For R1C6, there is 579 in the row, and 2468 in the column, so that leaves 1 and 3 as only 2 possibilities for that cell. Does that help?
@@SmartHobbies THANK You. I tried to pause the video to see but then too many other scenarios clouded my vision. :) I could see but my brain was looking somewhere else. Thanks a ton for these videos. I progressed to Expert level where I can do 50% of puzzles. I am getting better recognizing the patterns and Your videos are helping me to get better. Thanks again.
Yeah, this one was brutal, but I'm impressed that I even gave it a try after reading the 'strategies demonstrated in this video." I was trying to remember how 'Thor's Hammer' worked, and I got pretty close, and I filled in many key cells. But I did ultimately have to click the video to get it right, and I would have never seen the remote triple without the video explaining it.
I liked this puzzle. But I liked your solve even more. Something not easy to me (I would not have found out the tricks) but it was very easy to understand!! Love it! Thank you! My time was about 9 minutes but with you help ☺
Great job, Ana. I remember this puzzle coming out 2 years ago and i couldn’t believe I had not tried to solve it. I asked Philip for his hardest puzzle and this is what he gave me. Glad you solved it.
Good learning puzzle. Triple colouring is new for me. I guessed R8C8 is 1, because of 357s in box 5,6,8,9, only one cell is 1357, but notable to prove , and I stopped saw vedio. Triple colouring is nice. Good construction and nice explanation to learners, thanks for the puzzle.
Glad you liked it. This triple coloring scheme appears quite a bit in extremely hard Sudoku puzzles, and it is not too hard for a human to spot them, if you know what to look for.
This one is brutal, nearly impossible without knowing about trivalue oddagons. I appreciate your comments. How long have you been watching the channel?
Every valid sudoku can be solved with trial and error. My very elementary solver uses nothing but singles (naked and hidden) and simple backtracking. It solved this easily.
@SmartHobbies Actually same as you outlined except I had to generate the theory for the tri-whatchacallit so that took some time, not too much. My time was doubled though because once the hard part was done I made a boneheaded mistake due to poor marking in one cell and I started over. Really interesting kind of mini-set theory with the 357's. I'm curious if that only applies when each box has one number per row and column. I'll have to take a look at that sometime.
Thank you for the feedback. I am always looking to improve my content. To learn more about Sudoku Coloring, I recommend you check out this tutorial: ua-cam.com/video/fiQGKN-l41s/v-deo.html
📕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
00:19 It’s Solving Time
01:22 Why Trial And Error Does Not Work
01:58 Sudoku Rating System
02:36 Trick #1
08:29 Trick #2
13:01 Setting Up Trick #3
14:45 Trick #3
16:40 Solving After Trick #3
At 8:30 I noticed a finned x-wing for 3 in cols 4 and 9 to eliminate 3 from r7c7.
Then, using the colored cell technique, proved that r7c7 and r9c6 had to be different, so r9c9 has to be 3.
This allows solving some other 3 cells and gives several 57 cells.
At this point, regardless of what r4c6 is, r8c1 is 3.
It unraveled from there.
Yours was probably easier, but it shows that there is often more than one way to solve a puzzle.
Nice job finding this bit of logic. Thank you for sharing. 👍🏻
1:18 how did you get 1 and 3 in column 6 row 1? Other than that I understood everything.
1:18 count the no's in row 1 and col 3., 2456789 are there., because 13 is in r1c6.
Thank you for your question. For R1C6, there is 579 in the row, and 2468 in the column, so that leaves 1 and 3 as only 2 possibilities for that cell. Does that help?
@@SmartHobbies THANK You. I tried to pause the video to see but then too many other scenarios clouded my vision. :) I could see but my brain was looking somewhere else. Thanks a ton for these videos. I progressed to Expert level where I can do 50% of puzzles. I am getting better recognizing the patterns and Your videos are helping me to get better. Thanks again.
@@Ramakrishnagm ah thanks.
@JAOM You are welcome. Thank you so much for watching. 😎
Yeah, this one was brutal, but I'm impressed that I even gave it a try after reading the 'strategies demonstrated in this video." I was trying to remember how 'Thor's Hammer' worked, and I got pretty close, and I filled in many key cells. But I did ultimately have to click the video to get it right, and I would have never seen the remote triple without the video explaining it.
The remote triple threw me for a loop as well, Brad. I remember Thors Hammer and Little Thor being pretty straightforward.
I liked this puzzle. But I liked your solve even more. Something not easy to me (I would not have found out the tricks) but it was very easy to understand!! Love it! Thank you!
My time was about 9 minutes but with you help ☺
Great job, Ana. I remember this puzzle coming out 2 years ago and i couldn’t believe I had not tried to solve it. I asked Philip for his hardest puzzle and this is what he gave me. Glad you solved it.
Link is not working
Fixed in the description. Sorry about that. tinyurl.com/2xh4yadh
Good learning puzzle. Triple colouring is new for me. I guessed R8C8 is 1, because of 357s in box 5,6,8,9, only one cell is 1357, but notable to prove , and I stopped saw vedio. Triple colouring is nice.
Good construction and nice explanation to learners, thanks for the puzzle.
Glad you liked it. This triple coloring scheme appears quite a bit in extremely hard Sudoku puzzles, and it is not too hard for a human to spot them, if you know what to look for.
Link is not working. It's broken.
Fixed in the description. Sorry about that. tinyurl.com/2xh4yadh
B R O K E N L I N K !!
Fixed in the description. Sorry about that. tinyurl.com/2xh4yadh
That was a tough one. I wasted nearly an hour trying to do it myself. I should have watched the video straight away.
This one is brutal, nearly impossible without knowing about trivalue oddagons.
I appreciate your comments. How long have you been watching the channel?
@@SmartHobbies I have only recently started watching it regularly. I have been aware of your channel for about six months.
@ Awesome. Glad that you found it. I’m excited to help you on your Sudoku journey and enjoy seeing your comments.
Every valid sudoku can be solved with trial and error. My very elementary solver uses nothing but singles (naked and hidden) and simple backtracking. It solved this easily.
Interesting. What is the name of the solver you used?
It looks like a millenium falcon
I can see that 😎
Impossible? Definitely not. But I'll watch the video now to see how I could have shaved 1 hr 40 minutes off my time.
Great puzzle, by the way.
I'm sure that your solution was very impressive. 🙂 How did you approach it?
@SmartHobbies Actually same as you outlined except I had to generate the theory for the tri-whatchacallit so that took some time, not too much. My time was doubled though because once the hard part was done I made a boneheaded mistake due to poor marking in one cell and I started over.
Really interesting kind of mini-set theory with the 357's. I'm curious if that only applies when each box has one number per row and column. I'll have to take a look at that sometime.
@ Very Cool. 😎
You should stop putting and removing colors all the time.
Thank you for the feedback. I am always looking to improve my content. To learn more about Sudoku Coloring, I recommend you check out this tutorial: ua-cam.com/video/fiQGKN-l41s/v-deo.html