Do You Know All These Sudoku Tricks?
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- Опубликовано: 2 июн 2024
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** TODAY'S PUZZLE **
Happy 40th Birthday to James Sinclair, the brilliant puzzle maker and today's sudoku, Bag Of Tricks! As you might expect, this is a clever and interesting one which explores how well we know some of the basics of variant sudoku.
Play the puzzle at the following link:
sudokupad.app/4ftr2ntfg4
Rules:
Normal sudoku rules apply. Digits cannot repeat on the indicated diagonal. Cages show their sums. Digits along an arrow sum to the digit in that arrow’s circle. Purple lines contain a set of consecutive, non-repeating digits. These digits can appear in any order. Digits in cells with a shaded square must be even.
James' blog, Artisanal Sudoku is here:
artisanalsudoku.substack.com/
Sandra & Nala's Advent Calendar is available to download FREE at our Patreon page:
/ sandra-nalas-93505842
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▶ Contents Of This Video ◀
0:00 Theme Music & Puzzle Intro
1:17 Chants Of Sennaar Episode 3
1:31 Sandra & Nala's Advent Calendar
1:53 A 100 Puzzle Extravaganza Incoming!
2:50 New Fog-Of-War Kickstarter
3:20 Happy Birthdays
6:00 Rules
7:45 Start of Solve: Let's Get Cracking
▶ Contact Us ◀
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Развлечения
![KFF Singapore Badminton Open 2024 | He/Ren (CHN) vs. Alfian/Ardianto (INA) [7] | F](http://i.ytimg.com/vi/an7AykjOaAA/mqdefault.jpg)
Thanks so much for the feature! Second-best birthday present I could ask for (it'll be two-for-two if the Falcons can hold this lead 🤞). And a semi-drunk solve at that, can't wait to watch!
Just want to mention that this puzzle was first published in Artisanal Sudoku, my weekly newsletter (can't post a link, but it's not hard to find). Five new puzzles every Monday morning, all pretty approachable-this one is probably among the toughest I've published there. And, by the way, I've got something special planned for Volume 100, which will be coming out a week from tomorrow 😁
Happy birthday, James! Thank you for all the wonderful puzzles!
Yes, I solved it from your email, but I used the alt link with the extra clues, so I'm pretty excited to see what I missed in the original puzzle
Amazingly smart and cool multiple geometry tricks
👏👏👏👏👏👏👏👏👏👏
great puzzle and hope you have a great birthday
I've been subscribing to this newsletter for a few months now and I'd recommend it to everyone. The puzzle quality is excellent, they're generally somewhat approachable, and the first three each week are free (you can optionally pay a small monthly amount for two bonus puzzles per week, plus hints for all of them).
I'll admit that I needed the hints for Bag of Tricks this week!
Simon once again stung by that thing where he says "I see this obvious result but before I write it in let me see if there's anything else..." and then gets so distracted by the anything-else that he forgets all about the obvious thing he was going to go back and fill in...
Thank you so much for wishing my friend Derry a happy birthday!! He is a wonderful person. Thank you also for kind words about me. I absolutely ❤ this channel, you and Mark and the fantastic people who also ❤ you and post positive, encouraging posts everyday!!!
Your comments always cheer me up tremendously and make me feel right at home :)
@@stevenape377 so happy to hear that! 😊
@@longwaytotipperaryHappy birthday to your friend Derry!! He sounds like a wonderful person!! Everything Simon said about you is spot on my friend!! 😁💜🩵
David has said it very well. And Derry is lucky to have such a friend as you, longway!@@davidrattner9
@@davidrattner9 Thank you, David. You know it’s true about you as well! 😁💕💕
James from Florida here, Simone absolutely was thrilled to bits to have her birthday shouted out. Thank you so much, Simon. Simone told me she hopes you find many more 3s in the corner to sing about.
As another James from Florida, that one had me confused for a second 😁. Tell Simone I said happy birthday!
Simon is great at remembering to teach good sudoku principles. At 37:30 he spots to 7-8 pair in column 3 and could have written in the 6 in box 7. But instead he asks where is the blue digit in box 7. By placing that we see that box 7 has the 7-8 pair therefore we get the 6.
What an absolute beaut of a puzzle. I love how each layer reveals almost a new puzzle under it. Start with emptry rectangle logic, move on to shading, move back to numbers, and then a wrap up at the end. Lots of fun little tricks, but nothing particularly obtuse.
Nothing tells you that the purple line in the lower left is a single renban. It looks like two separate renbans because it doesn't continue through the arrow circle.
I ran into the same problem! I assumed it was two separate renbans and struggled for quite a while. It dawned on me eventually, and from there I enjoyed the solve immensely. I do wish there were a way for that to be more clear though.
Same issue, kept racking my brain on what number could be on a length 3 renban line with a 9 that wasn't a 7 or 8. I guess there's none.
it was harder than what i normally can solve, but i did it in the end!
thanks for sharing!
I've never even attempted a varient sudoku solve, and thanks to CTC, I had quite a few pencil marks in seconds. Truely fascinating
Happy Birthday, James Sinclair! Thank you for all the wonderful puzzles you set and send out every week!
Wow - I got repeatedly lost, had to follow Simon’s insights many times to get anywhere near being able to complete it.
But I agree with Simon - a beautiful puzzle - well done James for setting it, and Simon for solving it so cleanly.
With digits in pink, green and blue
I solved this grid all the way through
But was I the best?
Did I beat all the rest?
Nope;. Solver one-six-twenty two.
(Stuffs everyone's socks full of chocolates and flies away)
Thanks for the chocolates!
Finished in 48:45. Took me a while to figure out that upper right and bottom left corners had to be 1,2, or 3. Since the arrows in box 2,4,6,and 8 require their circle to be 6789 and with the cages in box 1 and box 9 forces the row 1 and column 9 to have 46789.
Once you get the fact that 1,2,or 3 has to be in the highlighted corners sort of makes things fall into place.
Interesting puzzle!
Excellent puzzle! It's nice to occasionally get a puzzle whose rules I already understand; some days I don't have the brainpower to wrap my head around a new, amazing ruleset.
This was very fun from start to finish. I especially appreciated all the kind things you said about longwaytotipperary - she is a gem and such an encouragement to all of us, as clearly you agree. Thanks for this video, and for the interesting solve! James Sinclair puts out a weekly Artisanal Sudoku newsletter which I enjoy. (Simon, you are a gem, too!)
@emilywilliams3237 you are so sweet! Thank you so much! You are one of my favorite commenters! I ❤ how you are so appreciative of Simon and Mark and all the puzzle setters and the fandom as a whole! I always look for your comments as they are so insightful and articulate!
I finished in 55 minutes. Surprisingly, I was able to see all the Sudoku tricks. The brilliance of determining that the top right corner cell must be a 2, because it couldn't be 1 or 3, combined with the fact that the arrow base digits can see way more than initially thought, through the backdoor of the 11 cages, cannot be overstated in its brilliance. Because of that, the top and right arrow base both being 9 was very fun to spot. Very cool solve with neat logic. Great Puzzle!
Amazing puzzle with really neat pieces of logic I haven't seen before and at the same time not to hard. Congrats and happy birthday
What a marvelous puzzle! Thanks Simon - you were as brilliant as always!
Did this one earlier this week in James's "Artisanal Sudoku" newsletter, and needed two of the hints to help unstick me, completing the puzzle in 32:10. This was indeed one of the toughest puzzles he's released, but it was very cool! Also, happy birthday to you, James, and thanks for all the wonderful puzzles you release in your newsletter each week!
thank you for another great puzzle!
Happy birthday Derry!! Hope you had a wonderful day! Your friend longway is a treasure!! Should be blessed to know her!
Thank you, David. I am blessed to know both of you!
Happy birthday, James! While I have immense respect for Simon, I enthusiastically endorse your preference for hot wings over cake on the straightforward grounds that they are effortlessly superior.
Haha, absolutely! (And I don't especially like pumpkin pie either, that's just the seasonally-appropriate dessert food I settled on as a kid as an alternative to cake 😁)
12:15 for me. Great puzzle, very enjoyable!!
21:34 "There are three ways of making one." ( a NEW type of knowledge bomb from Cracking the Cryptic for everyone!)
Fantastic puzzle. Took me awhile to find the threads to start pulling but when I did it was beautiful. (94:12 total time for my solve with most of the breakthroughs coming in the last 30 minutes)
36:41 finish. I actually started in the opposite way that Simon did. Simon's green digits (the arrow circles in boxes 2/6), though I hadn't confirmed that both were the same, both look at box 3. If both arrows have a 1 in them, then r1c9 has to be a 1, and a 1 is a very odd even digit to place. Therefore, at least one of the green cells has to be 9 with a 2-3-4 arrow. Since both green cells look at the other two arrow circles, neither can be a 9. Now each of them has to have a 1, placing a 1 in the corner at r9c1. The rest of my start was along a similar path to Simon, though I did throw up a modified Phisto ring to speed things along.
Query: is the line from R5C1 to R9C5 a single line or two distinct lines ending on the same cell? Also, happy birthday, James Sinclair.
13:10 R1C5 and R5C9, the remaining potentially-equal circles (excluding R7C3) have this problem: the vertical and horizontal parts of block 3 share at least two cells, or if they share only one cell, that one cell is odd. Except possibly 126 vs. 234, where the shared cell is 2. The single shared cell must go in R1C9. Maybe something else bad happens if both are 9 and one is 126.
16:30 Okay, it appears that 6 in *any* of the colored circles forces two common digits into one corner cell. So none can be 6. Therefore, one digit must be repeated among the four cells, and it must be 9 in yellow and green.
I managed to slowly finish the puzzle before continuing further. I removed the color for 9, and eventually replaced colors for 78 with letters (G and H). It was a matter of long, hard grunge ruling things out.
It is a single 5 cell line.
Interesting, I was also wondering at first if that was one line or two. But I guess most people were able to tell it was two lines. Aside from that quibble, it's a lovely puzzle.
Great puzzle that is full of tricks! Solved in exactly 17 min :)
Super fun puzzle that really make us use our sudoku knowleged! =)
23:15
Lots of very sneaky things hidden away here which was greatly aided by throwing a bunch of colour at it. Really clever and fun.
Good puzzle. Tripped me up a number of times with the starting restrictions.
I did solve this. It took my quite some time. And in the end I had to use the alternative version with more clues. But I did really enjoy it
36:33 for me. Great puzzle, lots of interesting bits and pieces in there and a nice medium level of difficulty.
36:18 for me. Nice puzzle!
Beautiful puzzle!
Very nicely engineered James, thanks. I think I rumbled most of your tricks.
What a beautiful puzzle!
78 in box 9 were colorable as soon as you got them--while you didn't know precisely where blue was in box 7, it did have to be in row 8, which puts it in r7c9 and makes r8c9 purple.
31:54 for me. Frightened myself halfway through with some careless pencil mark removals!
I solved number 1 of the Advent calendar today and loved it.
The necessary starting logic is that all three-cell arrows must have at least two of the group 123 on them, and, if any of these arrows had all three, they would break another arrow. Solved in just under 27 minutes.
I want to see mark and Simon in the same room on the same puzzle
Had to watch to 18:01 to solve. Really nice puzzle, I enjoyed this one quite a bit. Took a lot of coloring 2-3 pairs and a very weird find of r1c2 being blue 7-8, of which I wasn't sure was intended, but overall very fun :)
Happy Brithday to James, and thanks for the puzzle. That was a lot of fun. I'm not normally a fan of puzzles with lots of variants, but this was very nicely worked, and no 3 in the corner, which is a welcome bonus for me. I liked the way that six could be ruled out from the edge arrows, which meant the top and right arrows had to be the same, and could only have one digit in common, and that had to be even. Therefore they were 9s, 126 and 243, placing 2 in the top-right corner.
Simon, I don't understand how, when you're solving, your scanning is so unbelievably bad that you can't even see a digit in the adjacent cell, but yet when finishing up you can polish it off in no time. Why can't you do that when you're solving? Is there something about the act of thinking that switches off your visual cortex?
Whew, that was tough. Took me over an hour, so I cleared it and restarted the next day, and got it in 58:41, noticing some stuff I missed or would have broken the puzzle with my first time through.
Simon always seem to reason on things he wants rather than on things he has : at 48:10 when he got this well-earned three in the center, instead of using it (trivially) in the renban line, he jumps to something else he has noticed before.
Fascinating duo-solve only think u need 1 of the left evens...+ The R1C9 even
Best part is its a mirror solve
Thoroughly enjoyed this, wondered which software you are using to colour the cells and do the multi-selects to change several at a time? Thank-you
Is it just me? But I'm having trouble with the renbanline crossing R7C3. To me it's nt clear if the line runs through under the circle or if this are two seperate lines both starting/ending in this cell. Could have done with an extra explanation in the ruleset.
We haven't seen a new Phistomofel sudoku in a long time on this channel. I hope he's doing OK.
He posts his puzzles on the LMD site. He seems to be on hiatus.
@@stephenbeck7222, I know he posts on LMG. Does he still post there as well?
Yes I do know all of those tricks... completed in 18m13s.
I believe in Sudoku pad settings you can click an option to show arrows over lines, but I could be wrong.
Wow! I actually beat Simon's time ( by 8 minutes)! But then, of course, i didn't stop to explain anything.
Yes, but only because I've been watching this channel since before covid.
You asked, right?
Rules: 06:05
Let's Get Cracking: 07:53
Simon's time: 39m15s
Puzzle Solved: 47:08
What about this video's Top Tier Simarkisms?!
Bobbins: 1x (30:56)
Knowledge Bomb: 1x (20:49)
Chocolate Teapot: 1x (44:48)
And how about this video's Simarkisms?!
Ah: 17x (03:35, 11:09, 12:23, 19:39, 24:39, 26:15, 26:36, 28:28, 30:13, 31:59, 31:59, 32:39, 33:18, 33:18, 38:35, 42:34, 42:34)
Hang On: 12x (09:41, 12:23, 12:23, 12:23, 17:16, 17:16, 17:18, 17:18, 19:39, 21:52, 26:58, 45:33)
Beautiful: 11x (01:37, 01:39, 04:14, 17:55, 18:44, 35:31, 40:39, 41:35, 41:35, 45:43, 47:03)
By Sudoku: 6x (09:04, 15:41, 18:15, 46:20, 46:26, 46:30)
In Fact: 6x (08:35, 09:00, 19:05, 19:17, 22:40, 28:51)
Pencil Mark/mark: 6x (23:28, 32:14, 32:52, 38:12, 40:08, 44:39)
Brilliant: 5x (00:49, 05:01, 35:41, 47:01, 47:51)
Cake!: 5x (01:12, 03:32, 03:34, 05:28, 05:32)
Sorry: 3x (19:42, 19:53, 40:35)
What a Puzzle: 2x (44:11, 44:11)
Incredible: 2x (02:07, 02:24)
What on Earth: 1x (27:52)
Goodness: 1x (00:30)
Bother: 1x (35:14)
Naked Single: 1x (39:29)
The Answer is: 1x (42:57)
Clever: 1x (22:23)
Lovely: 1x (17:14)
Gorgeous: 1x (40:35)
Shouting: 1x (05:20)
Of All Things: 1x (41:43)
Progress: 1x (36:00)
Symmetry: 1x (37:57)
Weird: 1x (08:39)
Most popular number(>9), digit and colour this video:
Eleven (12 mentions)
One (120 mentions)
Blue (24 mentions)
Antithesis Battles:
High (5) - Low (1)
Even (9) - Odd (2)
Shaded (2) - Unshaded (0)
Row (12) - Column (11)
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!
A tricky solve... one might even say, a bag-of-tricky solve! My time today was 38:32, solver number 301.
The placement of the 11 cages made me think of the extended Phistomefel ring, which I used to limit how many places 1235 could go in r23c78 and r78c23. But it looks like Simon solved it a different way, so I guess that wasn't necessary to the solve.
I wasn't sure about the 5 cell ranban line. I thought it's 2x 3cell ranban lines
That did feel more difficult. 60:27
Was I the only one who thought the 5 digit long renban line was actually two separate renban lines both containing the middle digit?
18:56 on this one, not too hard to follow although it did trick me into thinking I broke it just few minutes in
Solved in 42:37.
65:50 🥳
19:06 for me
Is it just me… or are those squares point not purple?
Wonderful puzzle.
01:13:20
I'm very disappointed that the 3 didn't get a song.
"That's three in the centre,
That's three in the Mid Dle
Losing its vertices..."
😄
I wasted almost two hours assuming my logic was symmetrical, when the puzzle is decidedly NOT symmetrical… 38:59 on my third or fourth attempt 🤬
played this before, but sudoku broke.
What do you mean?
It's not broken. You did something wrong.
First