In 8:06 the elimination of 1's in r2c1 and r3c1 not necessarily implies that the 1 have to be in r1c1. There could still be a 2 in r3c1 putting a 1 in r3c2 and a 3 in r1c2. Then the problem arises with the outside 2 at the botton of column 2.
@@allanfiddler No. Because there has to be a 1 in box 1, one of the three 1s in the top left border pointing right needs to refer to that one, so there needs to be a 1, 2, or 3 in r1c1, r2c1, or r3c1. 3 has been eliminated, so it's a matter of determining whether it's a 1 or a 2. The logic shown in the video plus that 2 at the bottom of column 2 eliminates 2 as an option.
It’s an oldie but a goodie! Hadn’t seen one of these except back when first starting (so I gave them a wide berth!) Love this “look back in anger” series of some of the puzzles that were the beachheads for things we now take as normal. Thanks BremSter
21:47 for me. Box 1 could have been more easily solved about 10 minutes earlier by simple sudoku. The 5 in R9C1 looking up at the 5/9 pair you had in R3C1, and the 6/9 pair you had in box 7 (C2) looking up at the 4/6 pair you had in R1C2.
Hi Bremster, love watching your channel! But I sometimes wonder why you leave the conflict checker off. That would often make the solving way smoother and watching your videos more interesting imho (consider, just as an example, how long you missed some trivial things in column 2). After all, the videos are about showcasing the sudokus, and not about your solving / scanning capabilities, if I'm not mistaken?
I have run several polls on this, and done a few test videos, and every single one of them the overwhelming response was that the videos were much worse with the conflict checker on. Also, this is me enjoying the puzzles, and I don't enjoy solving with the conflict checker on. So if that became the way to do it; I would just stop solving and recording entirely.
I regard the sudoku TH-camrs as experts of the art, hence, imho, their stars would not shine so brightly if they resorted to using such tools! #saynotoconflictchecker 😆
Definitely some very interesting logic throughout this puzzle! The start was a bit slow, but I found as I got more of the numbered rooms set, the solve sped up quite a bit. Finished in 17:45 (conflict checker off), many thanks to Taeqle for a great puzzle and to BremSter for presenting it!
Because of the work done in b4 and b6, we have pointing 2s in c3 looking up from b4, which caused me to look at the entropy the wrong way. You are right the way I pencilmarked the 12 in b1 when solving it is not great and I don't think I did this well. I think the logic is right, but I am not happy with it.
@@BremSterPuzzles yeah you skipped the logic to eliminate 2s from c1. A "2" in r1 puts two 1s in b1, a "2" in r2 puts two 2s in b1 and a "2" in r3 makes it impossible to put a "2" in c2 (because of the numbered room "2" clue at the bottom of c2)
If 2 goes to R3C1 could the 2 in C2 Not go to R7? My Solution was: After some pencilmarking in R1C1 only 1 and 8 were possible. In C9 1 can only Go to R2 and R3. So there Must be a 9 in R2C1 of R3C1. This eliminates the 8 in R1C1 so only 1 is possible there.
@@JoachimMeissner-hh7nc 2 in r3c1 would put 1 in r3c2 and that would put 3 in r1c2 (because of the numbered house clue at the top) and this would conflict with the numbered house clue at the bottom for 2 at r7c2
Drama... Unacceptable man! You had 5 in COL 1 right at the start so Box 1 could have been solved. But even if you missed that, when you do 6 in Box 4 based on Col 1-3 logic, you NEED TO FOLLOW UP and do 6 in Col 1, right?! That was just unacceptable man.
That was very clever. I have not watched your solve but I am impressed that you did it in around half an hour.
That was way more difficult than I expected. Very cool though!
Box 1 felt like a red herring for an easy break-in! Clever!
In 8:06 the elimination of 1's in r2c1 and r3c1 not necessarily implies that the 1 have to be in r1c1. There could still be a 2 in r3c1 putting a 1 in r3c2 and a 3 in r1c2. Then the problem arises with the outside 2 at the botton of column 2.
Yup. Jumped the gun there and got lucky.
Could r8c1 not also have been a 1?
@@allanfiddler No. Because there has to be a 1 in box 1, one of the three 1s in the top left border pointing right needs to refer to that one, so there needs to be a 1, 2, or 3 in r1c1, r2c1, or r3c1. 3 has been eliminated, so it's a matter of determining whether it's a 1 or a 2. The logic shown in the video plus that 2 at the bottom of column 2 eliminates 2 as an option.
@@blargo I finally got it after following the consequence of a 2 in r3c1. It ends up with two 3s in c2! Thanks for your help!
23:08 ... I went wrong somewhere first try and then got it. But I bifurcated! Such a clever puzzle. Bravo!!!!
Cool spot on the 5 in C6! And in my opinion that's the beauty of solving, finding this sorts of stuff while exploring the grid it's priceless!
A lovely puzzle today, and a bit of a challenger. My time today was 19:34, solver number 430.
It’s an oldie but a goodie! Hadn’t seen one of these except back when first starting (so I gave them a wide berth!) Love this “look back in anger” series of some of the puzzles that were the beachheads for things we now take as normal. Thanks BremSter
27:32 for me today. Very nice puzzle.
got stumped and needed a bit of help with where to look, so thanks for providing that
21:47 for me. Box 1 could have been more easily solved about 10 minutes earlier by simple sudoku. The 5 in R9C1 looking up at the 5/9 pair you had in R3C1, and the 6/9 pair you had in box 7 (C2) looking up at the 4/6 pair you had in R1C2.
Hi Bremster, love watching your channel! But I sometimes wonder why you leave the conflict checker off. That would often make the solving way smoother and watching your videos more interesting imho (consider, just as an example, how long you missed some trivial things in column 2). After all, the videos are about showcasing the sudokus, and not about your solving / scanning capabilities, if I'm not mistaken?
I have run several polls on this, and done a few test videos, and every single one of them the overwhelming response was that the videos were much worse with the conflict checker on.
Also, this is me enjoying the puzzles, and I don't enjoy solving with the conflict checker on. So if that became the way to do it; I would just stop solving and recording entirely.
@@BremSterPuzzles ok, both good arguments. It was just someting I'd been wondering about for a while
I regard the sudoku TH-camrs as experts of the art, hence, imho, their stars would not shine so brightly if they resorted to using such tools! #saynotoconflictchecker 😆
24:26 for me
nice puzzle
The 5 in box 7 was concealing itself. Advice for (newer) solvers: always update your pencilmarks when placing a digit.
That was BRUTAL1. ❤
Definitely some very interesting logic throughout this puzzle! The start was a bit slow, but I found as I got more of the numbered rooms set, the solve sped up quite a bit. Finished in 17:45 (conflict checker off), many thanks to Taeqle for a great puzzle and to BremSter for presenting it!
Interesting puzzle but it hurt my brain.
So I settled for watching.
Hi! In german i would say: I am standing on the tube ;-) Why can R3C1 not be a 2? Then R1C2 would be a 3 and the 1 would go in R3C2.
Because of the work done in b4 and b6, we have pointing 2s in c3 looking up from b4, which caused me to look at the entropy the wrong way.
You are right the way I pencilmarked the 12 in b1 when solving it is not great and I don't think I did this well. I think the logic is right, but I am not happy with it.
@@BremSterPuzzles yeah you skipped the logic to eliminate 2s from c1. A "2" in r1 puts two 1s in b1, a "2" in r2 puts two 2s in b1 and a "2" in r3 makes it impossible to put a "2" in c2 (because of the numbered room "2" clue at the bottom of c2)
If 2 goes to R3C1 could the 2 in C2 Not go to R7? My Solution was: After some pencilmarking in R1C1 only 1 and 8 were possible. In C9 1 can only Go to R2 and R3. So there Must be a 9 in R2C1 of R3C1. This eliminates the 8 in R1C1 so only 1 is possible there.
@@JoachimMeissner-hh7nc 2 in r3c1 would put 1 in r3c2 and that would put 3 in r1c2 (because of the numbered house clue at the top) and this would conflict with the numbered house clue at the bottom for 2 at r7c2
@@utkarshverma5223 Yes you are right. ty
20:03 but should be less, I had to comeback almost everything because I placed a digit in the wrong position... ha! 😅
But it was a great puzzle! 😀
Drama... Unacceptable man! You had 5 in COL 1 right at the start so Box 1 could have been solved. But even if you missed that, when you do 6 in Box 4 based on Col 1-3 logic, you NEED TO FOLLOW UP and do 6 in Col 1, right?! That was just unacceptable man.