A Fabulous Debut Sudoku

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Күн бұрын

This is a great debut puzzle called Per Zip by Anthony Anderson: app.crackingthecryptic.com/7Q...
Normal sudoku rules apply. Digits an equal distance from the centre of a lavender 'Zipper Line' must sum to the digit in the middle of that line. Black dots connect digits in a 1:2 ratio. Blue dots connect digits in a 2:3 ratio. Not all dots are necessarily given. The grid contains nine "doublers," one in each row, column, and 3x3 box; each digit from 1-9 is "doubled" exactly once. Doubled digits count as twice their value for the purposes of the zipper lines or dots.
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▶ Contents ◀
0:00 Theme Music & News around the channel
2:44 Rules of today’s puzzle
3:55 Start Of Solve - Let's Get Cracking!

Пікірлер: 57

@anthonyanderson9356 6 ай бұрын

I just want to say a MASSIVE thank you to Cracking the Cryptic for featuring my puzzle! This completely made my day (I've had a Cheshire cat smile since I saw the thumb nail) and was an excellent way to close out the year. Really enjoyed watching your excellent solve Mark! I genuinely do appreciate all you do to showcase puzzles and watching you and Simon solve so many sudokus is where I started getting ideas for setting! Thanks to all who give the puzzle a go and hope you all enjoy! -Anthony Anderson (setter)

@sampathkumar-ej7xl 6 ай бұрын

That was an excellent puzzle. Figuring the blue dot between B4 and B5 was the hardest.

@FrancisFjordCupola 6 ай бұрын

Loved the puzzle... but that doubler rule was pretty confusing. It didn't help that on sudokupad they put the rule in last (in the wall of text representing the rules). I liked that eventually I could use it to determine the positions of the doubled 3, 4 and 7. Would have loved it more if instead the doublers were confined to lines and dots. Then its extra restriction would come in handy at the most confusing time. The double nine was pretty devilish and I think I've done the most scratching and deleting in the third column. But it was fun. Thank you.

@emilywilliams3237 6 ай бұрын

I really liked this puzzle and video. I normally am very intimidated by doublers and similar, but this feels almost doable to me, especially with your excellent explanations and demonstrations, Mark. Thanks for featuring debut setters as often as you (and Simon) do - it is encouraging to think that brilliant puzzles are coming from many quarters!

@longwaytotipperary 6 ай бұрын

Added thanks for wide variety of puzzles by so many setters! And for helping so many of us through difficult times! I’m sure the two of you have challenging days, but your programs always bring a bit of light hearted entertainment day after day. Phenomenal! ❤️ (also agree your explanations are excellent!)

@stevesebzda570 6 ай бұрын

Oh, we're just gettin old, Emily (about coming from all quarters). We're just gettin old guys 😂

@chocolateboy300 4 күн бұрын

I finished in 60 minutes. Putting doublers on zippers feels so fun to do. It makes me question the possibilities in different ways than I usually do, and that's fun. Great Puzzle!

@chris5619 6 ай бұрын

This has been one of the most challenging puzzles for me in a while on this channel. Couldn't get through it at all with out Mark's help. I do think it's a good puzzle, just stumbled me.

@eddieharwood7788 5 ай бұрын

What a brilliant puzzle. It took me a while to realise how the doublers worked on the transverse zipper up left, then I just couldn't differentiate how to finish from there UNTIL I eventually remembered that each digit is only doubled oince.

@anaayoung9142 6 ай бұрын

What a interesting puzzle with zipper lines. Love the logic in the start, and in every time we need to find the doublers! Thanks for the solve Mark! 🤗

@couchalmark675 6 ай бұрын

That last part was very brilliant where the "one of each" constraint on the doublers isn't important at all for most of the puzzle and I in fact forgot about it until noticing that the last few doublers weren't on any lines or dots, and then it wound up being extremely important to unravel the final digits.

@ericpraline1302 6 ай бұрын

A very fine debut indeed, thanks, enjoyed this one.

@martinbull-gundersen8878 6 ай бұрын

This was a very funny puzzle with a lot of surprises! Really enjoyed it 🙂

@RichSmith77 6 ай бұрын

I falsely concluded you could never have a doubler on a black dot! This allowed me to take an unjustified shortcut in box 7. I was just lucky the solution didn't have a doubler on a black dot. It was only watching Mark that I realised my error. The larger value in the 2:1 relationship can clearly never be a doubler. But the smaller value could have been! Doh.

@deszeldra 6 ай бұрын

Great video! Thanks.

@piarittersporn 6 ай бұрын

A realy very adventurous puzzle.

@grahamania 6 ай бұрын

00:37:33 for me. Great puzzle with great logic where every doubler mattered. Kind Comment.

@inspiringsand123 6 ай бұрын

Rules: 02:48 Let's Get Cracking: 03:54 What about this video's Top Tier Simarkisms?! Three In the Corner: 3x (35:02, 39:58) Scooby-Doo: 1x (35:55) The Secret: 1x (04:34) And how about this video's Simarkisms?! By Sudoku: 10x (23:18, 33:42, 34:27, 35:28, 35:31, 35:58, 37:00, 37:29, 39:51) Ah: 9x (21:01, 22:53, 24:23, 27:21, 27:47, 28:54, 29:24, 36:30, 37:57) Weird: 8x (10:20, 11:34, 19:11, 23:36, 25:46, 26:37, 38:40, 39:12) Wow: 4x (16:31, 33:38, 33:55, 39:12) Hang On: 3x (08:06, 18:35, 25:09) In Fact: 3x (14:33, 17:30, 20:34) What on Earth: 2x (05:17, 18:38) Brilliant: 2x (01:55, 41:21) Goodness: 1x (31:56) Sorry: 1x (34:43) Bother: 1x (29:45) The Answer is: 1x (05:19) Proof: 1x (39:19) Obviously: 1x (07:55) Fabulous: 1x (41:52) Pencil Mark/mark: 1x (07:33) Most popular number(>9), digit and colour this video: Ten (10 mentions) Two (73 mentions) Black, Green (10 mentions) Antithesis Battles: Low (3) - High (1) Even (7) - Odd (0) Highest (3) - Lowest (0) Outside (2) - Inside (0) Black (10) - White (0) Row (26) - Column (18) 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!

@titusadduxas 6 ай бұрын

48:10 - Excellent debut puzzle

@Paolo_De_Leva 6 ай бұрын

Great solve. Thank you Mark for showing me how to do that. This time I was not able to do it myself. Too many mistakes.

@psiphiorg 6 ай бұрын

I found this quite challenging, mostly because I kept disregarding the possibility that r4c3 could be a doubler. I kept rewinding and going forward back to the same contradiction. Finally had to watch Mark's video, up to the point at which he considered that this cell might be a doubler, and I smacked my head (figuratively)! I moved forward, finally considering that it could be one, and of course finding out that it was. My time was 48:00 even, solver number 92!

@KinkyTurtle 6 ай бұрын

Oh, thank you! I had the same problem, and your comment here got me unstuck.

@Gonzalo_Garcia_ 6 ай бұрын

18:00 for me. Great puzzle!!

@adrianhead6272 6 ай бұрын

The trick here is the 2:3 ratio (2,3 - 4,6 - 6,9 - and 8,12 given the possibility of double values). Completed in 18m06s.

@annesorensen4004 6 ай бұрын

Fun puzzle 🎉 I carried a false deduction (a stupid small one😂) a At the end I needed to dobble both 7 and 3 in same row… that’s no good 😝 Same solve and logic as Mark, just with my little fault to spice it up😅 Nice and lovely puzzle ❤🎉

@Rach881101 6 ай бұрын

41:34 for me. Nice puzzle!

@Yttria 6 ай бұрын

Relaxing solve (42:41 total time)

@JohnRandomness105 6 ай бұрын

This took me a long time. Desperate times require desperate measures, and this particular desperate time was when I thought I'd broken the puzzle. I saw one crazy escape, insane but very much in line with setter perversity -- and in the process, filled one of the three-celled lines with *two* doubler digits. I thought that line was only to be filled near the end, when things were a lot more restricted. 13:30 Where does 8 go in row 9? Then what do you do when 8 + 1 = 9 is ruled out? (This wasn't the desperate measure I mentioned above. It was just a bit strange.) 23:50 The desperate measure involved the 9 just placed on the three-cell line.

@londov1 6 ай бұрын

What are the impacts of the correct zip line in r9 with 1-3-4-2? Because I can see the 3-6 doublers in r3&4 wouldn't work with that.

@WhoStoleMyAlias 6 ай бұрын

I had to read that multiple times before grasping what you were aiming at. You are wrong. The correct order is as Mark entered it: 1-2-4-3. On the zipper line the 1 in r9c3 combines with the 3 in r9c6 to sum to 4, the 2 in r9c4 combines with the doubled 1 in r8c6 to also sum to 4. If you were to use the order you consider correct this would make r9c3 the double and the zipper line in box 9 becomes impossible.

@kevinlux-sullivan3809 6 ай бұрын

I did the same thing as you, @longdov1. I thought Mark had swapped 2 and 3 in r9, but that was because I was treating r9c5 as double arrows, not a zipper line. @WhoStoleMyAlias is correct. Short zipper lines tend to look like arrows to me.

@Raven-Creations 6 ай бұрын

@ 13:18 - "Do I know which one of these is the doubler?" - Yes, if you consider the line you were just looking at, it has at least 5 and 6 on its tips, so the centre digit must be doubled. This makes R8C6 the doubled 1. I didn't seem to struggle as much as you in the middle. I think that's probably because I considered the black dots earlier. I was also keeping track of which doublers had yet to be placed earlier than you, which helped me a bit earlier than when you used it. When you switch to beast mode you just leave me in your dust.

@TurquoizeGoldscraper 6 ай бұрын

40:06 for me - I got stuck in box 4 because I didn't think the double-9 would work there.

@stevesebzda570 6 ай бұрын

@6:55 I like those colors (I've even lightened my green up). I've lighter all the colors, actually. Nice

@stevesebzda570 6 ай бұрын

*lightened

@RhiniedaGenie 6 ай бұрын

Wow I'm sweating and I wasn't even doing it

@_-_-Sipita-_-_ 6 ай бұрын

26:43 for me.

@boydegg 6 ай бұрын

71:09 but I had to hazard a guess at one point. I made a lucky guess.

@LednacekZ 6 ай бұрын

failed at the 86 blue dot. forgot that that option was possible.

@victorfinberg8595 6 ай бұрын

9:20 another way to do that is, in col 5: 45 - 5 = 40, all real digits. remove one digit, and the result must be divisible by 4. the removed digit cannot be 9. where does 9 go in the col? etc.

@stevesebzda570 6 ай бұрын

@39:58 I'm turning off the 3 in the corner, I don't want to be a part of it.

@phuybrechts6875 6 ай бұрын

Could the double 6. in box 6 be a double 3 ??????

@RichSmith77 6 ай бұрын

(Assume you mean box 5?) The blue dot couldn't take a doubled 3 in r5c4. A value of 6 on a blue dot requires either 4 or 9 for the 2:3 relationship. r5c3 cannot be 4 or 9. Neither can it be a doubled 2 if r5c4 is a doubler in the row.

@listey 6 ай бұрын

One of my favourite constraints. And one of my least favourite line colours. The clash with the blue pencil marks is horrible on the eyes.

@Pritchie45 6 ай бұрын

36 minutes

@michaelwest317 6 ай бұрын

If the double 1 is R8C6 then shouldn't R9C6 be a 2 not a 3...? Does that not break the solution path?

@RichSmith77 6 ай бұрын

It's a zipper line. r8c6 goes with r9c4, not r9c6 You're not the only one in the comments to make this mistake though. There must be something about this zipper line that makes it easy to treat it like two arrows, instead of a zipper.

@michaelwest317 6 ай бұрын

Got it. Thanks! @@RichSmith77

@zaclewis1869 6 ай бұрын

Dang. I failed. I thought I had it. Got all the way to what I thought was the end and couldn't resolve the last double digit I needed. Looking at the solution in this video I see my main mistake was somehow swapping the 6 and 8 in r7c5, r8c5. Not sure how I did that, but it happened.

@_raithy 6 ай бұрын

Am I going mad or is Mark’s solution wrong? The 2 and 3 in r9 are the wrong way round…

@Aliessil 6 ай бұрын

--If you are, so am I - I've been waiting for him to correct that since he entered those digits! Which means whoever entered the solution also made the same mistake as Mark-- [edit] We're wrong! It's a zipper line so the 1 in r8c6 pairs with the 2 in r9c4, NOT r9c6

@Paolo_De_Leva 6 ай бұрын

They are correct. The doubled *1* is coupled with the *2* in *r9c4* and they add up to *4.*

@Paolo_De_Leva 6 ай бұрын

On the contrary, my solution was wrong just because I switched *2* and *3* in row *9,* so you are not the only one who was confused by that specific zipper line 😂 And when I saw Mark placing a 2 in *r9c4* I thought _"he is wrong❗"_ It took a while for me to understand my mistake 🤪

@victorfinberg8595 6 ай бұрын

the rules are WORDED wrong. instead of referring to DIGITS, the correct term is VALUES.

@Aliessil 6 ай бұрын

--I'm sure this solution is wrong, and has been from really early on - in box 8, the doubled 1 -*-has-*- to go with the 2, but Mark's paired it with the 3. I spent the whole video waiting for him to fix it and he never did, meaning the solution is/was wrong too-- 🤔

@arturocaissut1071 6 ай бұрын

He didn't: the doubled 1 is correctly paired with the 2.

@Aliessil 6 ай бұрын

@@arturocaissut1071 Ah, I was writing a reply on how it's definitely wrong when I finally realised I wasn't treating it as a zipper line - the doubled 1 in r8c6 is paired with r9c4, NOT r9c6