The Beautiful Sudoku Mark

[@NotElusivePanda]

I really liked how Simon went full Mark this time. It was a beauty.

[@oscarbarnes2130]

Surely the beauty mark is the black spot!? Classic Simon reading too much into things I dare say he missed... the mark (sorry)

[@alanclarke4646]

Write out 100 times: " I must not make dreadful puns" 😁😁😁

[@jaeusa160]

I was about to say I don't think Simon knows what a "beauty mark" means. ;p

[@Anne_Mahoney]

I was going to post the same thing (but without the pun!). The idea was that a mole or blemish adds to the beauty of a face; in Renaissance France women would add an artificial black mark (with makeup or the like) on their faces. See Wikipedia s.v. "beauty mark." If the black kropka was a late disambiguator, as Simon conjectured, then the title of the puzzle also came along late in the process! 😺

[@spatulamahn]

Zetamath forcing a puzzle that requires Simon to pencil-mark like crazy! Love it!

[@KurotaniAzami]

a sudoku named "Beauty Mark" should've been done by Mark :D Love the solve!

[@davidrattner9]

For anyone interested..zetamath watch party tonight on his channel at 6 central, 7 eastern, 12 midnight in England. Great insight as to how Zetamath sets! Always fun to be part of.

[@57thorns]

One hour after midnight and work tomorrow, but I got to solve the puzzle before bed time at least. 36 minutes. Somehow the breaking spoke to me and the it just flowed.

[@trisha2584]

I looked to see if Zetamath was doing a watch party but it is too late for me. I will have to watch it tomorrow. Hope you enjoy it; I am sure you will.

[@longwaytotipperary]

Watched it - great!

[@davidrattner9]

@@longwaytotipperary so glad you were able to 😀

[@longwaytotipperary]

@@davidrattner9 😊enjoyed watching zetamath explain what considerations he used in setting the puzzle! Very much enjoy the mutual admiration of those two!!

[@longwaytotipperary]

Enjoyed watching Simon solve it and then watching zetamath watch Simon solve it!

[@kathyjohnson2043]

Yes, the black dot is the beauty mark

[@Orenotter]

"Nasty Zetamath, making Simon's brain hurt!" I had to repeat that in the voice of Smeagol. #}=03

[@johnomeara7240]

First Zetamath puzzle I've solved, took more than twice as long for me as Simon's solve.

[@fulltimeslackerii8229]

i would love to see a nabner liner used to start an odd even coloring puzzle. all you’d need is 1 5 cell one

[@Orenotter]

Now renbans make puzzles worth saving, Of whispers in German I'm raving All lines I do love But these nabners above For bananas they give me a craving.

[@titusadduxas]

1:13:35 - That was wonderful. Zetamath is excellent at creating puzzles that flow. Loved it.

[@pickledcucumber8693]

Proud of solving this in 60:31 as this is probably the hardest one ive been able to solve from the channel thus far, hopefully I didn’t make any premature eliminations

[@HunterJE]

I feel like something interesting could be made using nabner lines and entropic lines, there's probably some interesting interactions possible arising from the fact that a four cell nabner line must have at least one digit each from the high and low entropy sets

[@thecalculusofexplanations]

Oo I like that. I was thinking interactions between nabner and renbans would be an obvious thing to look at given their opposite natures (I know there were some in his first puzzle but it was mostly about the GW lines)

[@HunterJE]

@@welcomeblack That has two each from the high and low sets

[@sammich_uwu]

I just realized that nabner is renban backwards, which is genius since they're opposites :o

[@TheMartijnh73]

Me too.. Wondering whether Simon figured that out too :D nabneR

[@pairot01]

The 79 pair on column 6 was quite the find. What I saw is that you can't have the blue line add to 4, so it must have a 2 and the nabner must have a 1, giving the 1 on box 4.

[@keenanmolver9689]

I struggle to stop working and switch off, generally I start working as soon as I wake up. But when I watch these videos it somehow does the trick, feel completely done with the days work.

[@Swisswavey]

Very nice puzzle. 45 minutes for me. I enjoyed it a lot, thanks for sharing it

[@John-qf6dw]

its 5 30 am here in Australia and i have 1 hour before i leave for work. 47min CtC video is perfect for today :)

[@LiquorStoreJon]

Gotta be another beautiful puzzle from Zetamath!

[@Theoneandonlychessepuff]

One of the things I find to amazing about Simon is that he all way knows where to start with hard puzzles

[@davidrattner9]

Great solve Simon!. Love how your brain works!!

[@MattYDdraig]

33:24 for me. This was beautiful once I finally got it into my head that each line's sum could be different and stopped cursing at the puzzle for not seeming to be possible.

[@bkaozzz]

21:50 for me, another great puzzle from zetamath, I love the nabner constraint!

[@danielwolters9082]

What a nice puzzle. I was fascinated by the Ideas and so happy to discover them. So impressive how much faster Simon found them. Thanks for the puzzle and the video 🎉

[@lnsatiabie4364]

me: " and that makes a 1,2,3,4,5,6,8 septuplet!" simon, alacritously: "there is a 7,9 pair in this column"

[@donaldsnyder1543]

The day Simon became pencil Mark.

[@WilliamSurles]

In the last 2 video's I've watched... Simon does a puzzle called beauty mark that requires lots of pencil marking, and Mark does a puzzle that builds a snake and involves multiple levels of color schemes with a backstory about a wizard named simon going on a quest. Who is picking who does which puzzles here? 🙃

[@inspiringsand123]

Rules: 04:00 Let's Get Cracking: 06:05 What about this video's Top Tier Simarkisms?! The Secret: 4x (08:23, 08:43, 08:50, 11:31) Bobbins: 3x (13:57, 14:09, 38:16) Three In the Corner: 2x (17:58, 18:00) ​Scooby-Doo: 1x (40:53) And how about this video's Simarkisms?! Beautiful: 7x (10:20, 16:23, 32:23, 32:33, 45:42, 46:21, 46:27) Hang On: 6x (27:03, 31:36, 31:43, 35:40, 36:07) Pencil Mark/mark: 5x (18:40, 21:01, 26:29, 38:10, 46:27) Cake!: 5x (02:37, 03:07, 03:09, 03:29, 03:33) Surely: 4x (14:02, 14:25, 18:11, 22:58) In Fact: 4x (00:26, 02:53, 22:41, 34:16) Ah: 4x (14:12, 31:27, 40:39, 43:21) Sorry: 3x (19:17, 24:50, 38:55) Naughty: 3x (15:09, 25:00, 42:05) By Sudoku: 3x (20:00, 25:59, 37:46) Goodness: 2x (21:16, 33:02) Brilliant: 2x (02:35, 03:41) Ridiculous: 2x (26:53, 26:55) Wow: 2x (18:44, 45:52) What on Earth: 1x (26:59) Bother: 1x (28:00) The Answer is: 1x (40:51) Out of Nowhere: 1x (34:32) Lovely: 1x (38:14) Fascinating: 1x (35:02) Obviously: 1x (04:20) Full stop: 1x (16:32) Progress: 1x (19:07) Juxtaposition: 1x (07:35) What Does This Mean?: 1x (26:17) That's Huge: 1x (33:16) Most popular number(>9), digit and colour this video: Twenty One, Twenty Four (17 mentions) One (93 mentions) Black (10 mentions) Antithesis Battles: Low (5) - High (2) Even (5) - Odd (0) Lower (3) - Higher (0) Black (10) - White (0) Column (22) - Row (9) FAQ: Q1: You missed something! A1: That could very well be the case! Human speech can be hard to understand for computers like me! Point out the ones that I missed and maybe I'll learn! Q2: Can you do this for another channel? A2: I've been thinking about that and wrote some code to make that possible. Let me know which channel you think would be a good fit!

[@Rubrickety]

I was pretty impressed with the efficiency of Simon's solve. I got there eventually, but I got really bogged down in the second half.

[@MrDaDisha]

Question for patreons. How hard are the monthly hunts? I am interested but i am nowhere near the level of these guys would i be getting in over my head if I join? And second question are old hunts available for new joiners?

[@agargamer6759]

I've only done the most recent hunt so I don't know how difficult the puzzles normally are, but old hunts are available for new patrons!

[@Anne_Mahoney]

They can be very, very, VERY hard -- but they aren't always. And, yes, once you join up you can see the archive of previous ones. There are also some extra hunts, including a few designed for kids that are deliberately not too hard. Some months, the package is in 2 parts: a relatively accessible group of 4 or 5 puzzles (with a code to submit to enter the prize draw) and another 8 or 10 that are much harder (with a further code to get a shout-out). When you do join up, among recent months the Planets (June 2023) and Quite Approachable (February 2022) may be good places to start.

[@ellahornby4898]

Having solved a few puzzles including nabner lines, and watching simon solve some too, it just now occurred to me that nabner is the reverse of renban

[@ThomasFjeldbonde]

Great puzzle as always with Zetamath!… Unfortunately the link in the Sudoku Pad again doesn’t work…

[@bellairenative19]

“oh bobbins mcbobbins face” Simon - 2023

[@Afterthoughtbtw]

31:56 for me. Pretty chuffed with that considering my mind felt completely blank and clueless when I started it! Those nabner lines do my head in... but in a good way. Nice feeling when you see how the logic works.

[@jhonnyrock]

Simon the Goat 🐐

[@JASPACB750RR]

Simon: “I thought I was gonna be good enough to do sudoku” Mark is Goodliffe enough to do Sudoku though. Haha. Simon and normal Sudoku are words that don’t belong together. Simon and variant sudoku. That’s the correct phrase.

[@globglogabgalabyeast6611]

Brutal puzzle for me! I think this is only my second puzzle with nabner lines, so the logic did not come easy. I worked through a ton of logic in boxes 1,4,7 without realizing I had 13567 pencil marked on the box 1 nabner line from very early on (and therefore could have eliminated the 6). Still had a ton of fun despite finishing in 93:11

[@GaimeGuy]

Took me about 2 hours after resetting (I had been stuck for a few hours prior to the reset). Felt so good to finally break it in. 1. The nabner line in box 2 forced a minimum of 21 as the region sum on the line passing through boxes 1, 2, and 5, 2. The vertical region sum line passing through boxes 1 and 4 must have a total of at least 15 (1+2+3+4+5). Since the total must also be a multiple of 2 (because the region sums in each box must be identical), this raises to 16.. or at least a regional sum of 8. 3. Therefore, the region sums in box 1 are at least 8 and 21 (or 29 total). This means the nabner line in box 1 is at most 16 4. The smallest four-digit nabner line in box 1 is 1, 3, 5, and 7... which sums to 16. Since there's no wiggle room between the smallest nabner line and the largest nabner line, we now know there's a 1-3-5-7 nabner line in box 1 (sum to 16), a line with region sums of 8 in box 1 and 4, and a line with region sums of 21 in boxes 1, 2, and 5. This sends us off to the races on finding the combinations. Also loved the touches later on in the puzzle of ruling out certain digits because of pairs, triples, or nabner line rules (EG: At one point, I had The following in R7: C1 89 candidates, C5 2489 candidate, C7 248, C8 2489. Clearly, by nabner line rules and sudoku, we can't have an 89 pair in C7 and C8... which means there must be at least one of 2 or 4 in these cells. Which means the nabner line in box 9 can't have a 3. Which means the 3 in box 3 must be in c7.)

[@georgen4246]

Box 9 is simplified if you realize that making 8 out of 1-2-5 always breaks the 4-cell nabner line. One value would be from 3 or 4, and then you have to select 3 values from 6-7-8-9.

[@michaelhoffman2011]

What a really fun puzzle to solve. I think I was pretty lucky to figure out the entrance early, to make the solve easier. took me about 30 minutes, but really well done

[@JeffreyLByrd]

53:52. I had to step away from this one for a while because when I first looked at it I had no idea except that it started in box 2. Coming back later I was able to see that box 1 and 2 were really the same pattern bur because of the equal sum line the boxes were totally forced. After that it was pretty smooth sailing. Edit: A “jolly great slug of digits” is my new favorite Simonism/Britishism.

[@piarittersporn]

Brilliant puzzle.

[@michielgerretzen9777]

@41' : Logic by Simon in box 9 so elegant. I simply started with trying 134 and 125 in column 9 versus until it broke ........... That explains my 70' solution time as opposed to Simon's 41' !

[@lizzzylavender]

Beautiful puzzle! I got stuck for a while on placing the 6 in c4, that was really a final hurdle. I especially loved the break in, I got so excited once I realized how box 1 restricted the big sum line!

[@brianroberts7096]

I'd reduced the sum line in box 2 to between 21 and 24, but couldn't narrow it down. Didn't look at the sum line in box 1 as the solution. Once Simon deduced the 26 in box 1, giving 21 the rest of the puzzle was fairly straightforward. Just under 50 minutes. First time I've solved the majority of a Zetamath puzzle without reverting to the video on numerous occasions. This must have been one of his easier ones.😀

[@Raven-Creations]

@ 11:11 - "So we're looking at values between 18 and 24" - So, Mr Memory, what did you deduce a couple of minutes earlier? You went on at length about how yellow's minimum sum was 21. How come it's now 18? I really enjoyed this puzzle, the combination of line types works really nicely.

[@frankjiang1857]

Finished in 28:48. Fairly straight-forward for a zetamath puzzle. I guess the nabner lines do well with me :D.

[@_-_-Sipita-_-_]

31:53 for me. I remember when you guys streamed a sudoku roguelike and there were a lot of "marks" around the areas.

[@myfyrmadocjones]

Instructions for equal sum lines look wrong, r2c7 for box 2 should read r3c6?

[@GeekRedux]

Clever to make the color of the nabner lines the complement of the color of renban lines.

[@Aliessil]

Finished in 34:53 - I'm quite liking nabner lines so far, though this is only the second time I've seen them.

[@Antiknight]

00:15:54 for me! Not too hard but I liked the break-in idea :D

[@davidrattner9]

Nothing is to hard for you 😉

[@Antiknight]

@@davidrattner9 haha some puzzles are :P

[@agargamer6759]

Beautiful puzzle, just under an hour for me!

[@Tepalus]

32:48 for me :)🎉 It really helped that I'm on my phone, because this way I always had the numberblock in my view. Kept staring at it to solve the golden lines. lol

[@Gonzalo_Garcia_]

21:25 for me. Very enjoyable puzzle!!

[@giladooshlon]

Beautiful puzzle. Took me 35 minutes.

[@PathOfShrines]

Very fun. Missed a simple deduction in the center square which held up my solve far too long. 49:03

[@arturocaissut1071]

Really nice!

[@ericpraline1302]

These nabner lines definitely have legs, and very attractive ones at that. I like them a lot, though I was slow to work out the start of this. Btw I'd have thought the black dot represented a beauty spot, not that it would enhance anyone's features in a place like that.

[@wanderlustwarrior]

39:28 for me. That was a really cool puzzle!

[@stevesebzda570]

And now the 5s align (@32:20) in boxes5&2, putting the "5" on the right in box8 below (and on that line that must total to six now). Nice one.

[@JohnRandomness105]

15:10 I managed to pencilmark all of block 1 and block 2, and column 1's blue line. The long blue line can't have segments summing to 24 because at least one of 789 in block one goes on the gold line. Two of 789 go on the three-cell segment. The blue line in column 1, block 4: its lowest two digits must go on the gold line in block 1, and can't be consecutive. They have to be 13. 2 goes on the line in block 1. Block 4's cells are at least 8. Block 1's cells are at most 8. Therefore... Much later: I managed to solve the puzzle. I think I needed a hint around 19:00 in the video. Well before I finished, I saw that the black dot would resolve a 26 deadly pattern. 27:50 With the 34s in the middle band, I found it useful to define C and D to be 3 and 4. The two empty blue lines helped resolve them, and they were both low. 29:20 The tip of that line in block 6: where is it in block 5?

[@specialkalberta]

The rules say that one of the box 2 equal sum line cells is in box 3.

[@Zeekfox]

I did fairly well with some of the math involved in this puzzle, but it still took me an hour and a half to complete it. My base Sudoku is not as strong and it took me quite some time to find out a few things. My breakthrough moment, for which I'm sure Simon will find something more clever, was to find a hidden pair in column 6 with only two placed digits. 7 and 9 could only fit in rows 4 and 9 of that column, which isolated the 5 and resolved a sum line total. It was absolutely ridiculous!

[@Zeekfox]

Oh snap, apparently Simon saw the same hidden 7-9 pair that I did, but just much faster. That's really cool.

[@garybrittain8210]

Very Cindy Crawford mark

[@gordonglenn2089]

Showing my "advanced" age, I thought of Marilyn Monroe.

[@srwapo]

Dang, I spent ten minutes looking at box 2, then box 1, and I gave up before looking at column 1.

[@six_5000]

Got it in 87:20

[@otakumonphd742]

it took me longer that is should to work out why the are called "nabner" lines

[@stubbsz]

Isn't the single Kropki. the Beauty Mark?

[@grithog5399]

Type a 1 if you think the beauty mark is the Z, or a 2 if you think it's the black dot!

[@minhluu7886]

45:18 for me, love nabner puzzles

[@creativename3256]

Really fun! 00:32:49 for me

[@psythagoras113]

Shakes fist at column 6, ya tricky bugger.

[@Rach881101]

47:30 for me. Nice puzzle!

[@bruceh8043]

I finish in 28:22.

[@user-kt9vr1wj6y]

39:23 for me nice puzzle

[@Hertog_von_Berkshire]

Took me a while ... but hey!

[@Pritchie45]

60 minutes

[@simonwstrong]

Very nice puzzle and solve, but does anyone else find the tap dancing keyboard elephants really distracting ?

[@MadsOcto7]

Why couldn't r3c9 be a 9?

[@MadsOcto7]

Ohhh I see.

[@terrible_shout]

Now "Z" symbol in Russia means the support of war in Ukraine. Know it and try not to use it anywhere. Still like for new video

[@RichSmith77]

Z is also the 26th letter of the English alphabet, and can occur quite naturally in all kinds of places where it has no political meaning whatsoever. (This particular Z appears to be surrounded by blue and yellow lines. This probably also means absolutely nothing.)

[@terrible_shout]

@@RichSmith77 11.09 is just a date, and the Negro - etymologically means only color. There are indissoluble pairs of concepts that are used to denote an event. I did not try to raise any political context, I only pointed out one of the meanings of this symbol and the possible consequences of its use in the future for those who did not know it.