Thank you for removing the colours after they’ve served their purpose. It makes it so much clearer! The ruleset was too complicated for me to try myself, but I never mind watching without doing the work. Lovely solve!
I was just amazed at how quickly you saw where to start this puzzle, and then how it all flowed for you. Thanks so much, Mark, what a solve. And a beautiful puzzle, as you said.
I honestly thought I wasn't going to be able to get a hold on how to start this puzzle, but surprised myself and then every flowed really nicely until midway when got a bit stuck figuring out the circle in box 3. 😅 I was finally able to iterate through the possibilities and after that, the rest of the puzzle was very smooth. Finished in 22:07 (conflict checker off), many thanks to James for this incredible puzzle!
Great❗ A new kind of modifier by James Kopp. Intriguing, innovative and magnificently designed. Thanks to James for building it and to Mark for featuring it.
19:40 the last circles can be resolved by thinking about what happens if R1C8 is 6. R3C7 would be 3 and the circle in box 9 would be 4. Then the line in boxes 2/3/6 has to add to a minimum of 15 in box 6 so R4C9 could only be 6 and R4C7 is then unfillable.
Jolly good puzzle though and Mark's solve is so impressively smooth I felt I must have missed something, but I don't think I did, it was just more of a very, very slow journey, with a lot of detours... 😄
I finished in 43:15 minutes. This was a super cool idea for puzzle and executed tremendously as usual by James Kopp. I think my favorite deduction was a simple one, but made me feel good for finding it quick. It was using the circles in column 1 along with the blue line in column 3 to get a minimum. The rest flowed just as well. Great Puzzle!
I went into that completely scrambling, because I did not understand the whole addend thing. Took me a while to grasp it. I finally got it and kinda ran with it, and finished a few seconds less than 33 minutes. Not my greatest, but it was fun once I understood it. I agree with another commenter who said the addend rule could have been worded better.
84:33. It wasn't so much that this puzzle was that tough, but it was more I had a lot of wacky pencil markings trying to keep track of everything. And I feel I mostly failed at that job. Mark gets a 6 in Box 4 around 11 minutes in, and I think it took me until 40 or 50 minutes in until I finally noticed it because of how...eccentric my markings were. I'm excited to see what a more rational solve looks like for this, because mine was anything but. I had a fun time with it, though.
Argh, when I got towards the end there were several lines that had single cells and therefore included the added only once. It caused me to completely forget that I needed the addend to be doubled in box 3 since the line took 2 cells. I can be so dense sometimes 🤦🏻♂️
Tried reading the rules and couldn't make heads or tails of it. I know what an addend but I don't know what it is doing or what we are instructed to do with it.
It's basically just saying the value in a circle in a given box gets added to each cell in that box for the purposes of the kropki dots and region sum lines.
@@phillipsiebold8351 If the digit in a circle is a 5, then all digits in that box have 5 added to them. If a digit in the box with a 5 in the circle is a 3, then it is 5+3, which is 8. So, if it's on a kropki dot or a region sum line, for those clues it counts as an 8. But, for regular sudoku, it's still a 3.
@@augustoserpe and how am i supposed to know it is a new word? I am not a native speaker. It could mean anything. especially with their background in cryptic crosswords. Have you seen the words and definitions they pull there?
Addend literally just means a number added to another number. When learning basic math in elementary school, you learn that putting two addends together gives you a sum. Though if you quizzed most people here in America they probably wouldn’t remember ever having learned that 😂 And yeah, if you’re not a native English speaker, I get it, but it’s not a crazy word or anything.
@@dustpan5356 As far as I can recall I never learned the term "addend" so not just America. It would definitely be clearer to write the rules as "Each 3x3 box has an 'addend'. This is the value in the circle in each box. For the purposes of all other rules (other than normal sudoku rules), the value of each cell is equal to the digit in the cell plus the 'addend' for that 3x3 box." or preferably even just leave out the term addend in general because by the technical definition, both the circled number and the other number are addends. "Each 3x3 box has a circled digit. For the purposes of all other rules (other than normal sudoku rules) the value of a cell is equal to the digit in that cell plus the circled digit in the same 3x3 box"
I'm not good with region sum lines as it is, this ruleset sounds impossible for me, and some others, going off of the comments. I think I'll pass on this one.
the term "addend" is for me as not-native speaker NOT defined. Sorry, but to introduce a new rule without a proper def., where often the "old" rules are extraordinarily explained by text seems off for me.
The rules explain what you do with "addend". You don't need to know its meaning. It could have been calling the digit in the circles Bob for all the difference it makes to the interpretation of the rules. The digit in the circle for the respective box ("addend","Bob", whatever) is added to the digit in each cell to get the value of the cell.
At 17:07, I panicked to find which of my home or work computers was making a new notification sound I've never heard before.
I froze and looked around my room. "what the heck was that?"
Thank you for removing the colours after they’ve served their purpose. It makes it so much clearer!
The ruleset was too complicated for me to try myself, but I never mind watching without doing the work. Lovely solve!
I was just amazed at how quickly you saw where to start this puzzle, and then how it all flowed for you. Thanks so much, Mark, what a solve. And a beautiful puzzle, as you said.
Finding the 6 in Box 9 the hard way is classic Mark. Nice puzzle and solve.
Something about this just didn't click with me and I spent well over an hour on the puzzle. I'm glad I saw it through in the end though!
Fantastic puzzle and not at all as difficult as I thought before startimg.
My thoughts exactly!
@@David_K_Booth 👍🏻🙂
I just could not figure the break-in then watched Mark explain it immediately! - nice solve
I honestly thought I wasn't going to be able to get a hold on how to start this puzzle, but surprised myself and then every flowed really nicely until midway when got a bit stuck figuring out the circle in box 3. 😅 I was finally able to iterate through the possibilities and after that, the rest of the puzzle was very smooth. Finished in 22:07 (conflict checker off), many thanks to James for this incredible puzzle!
Great❗ A new kind of modifier by James Kopp. Intriguing, innovative and magnificently designed.
Thanks to James for building it and to Mark for featuring it.
28:06 ... I very much enjoyed this solve
Nice puzzle!
19:40 the last circles can be resolved by thinking about what happens if R1C8 is 6. R3C7 would be 3 and the circle in box 9 would be 4. Then the line in boxes 2/3/6 has to add to a minimum of 15 in box 6 so R4C9 could only be 6 and R4C7 is then unfillable.
That's effectively the way I did it. (The same chain, but the order I followed gave me conflicting 3s in c7.)
Mark: the way I'm gonna do that is to say 4 times 1 is 1
I crave more of these puzzles asap!!
I feel I - kinda - got a hang of it just at the end 😂
Jolly good puzzle though and Mark's solve is so impressively smooth I felt I must have missed something, but I don't think I did, it was just more of a very, very slow journey, with a lot of detours... 😄
I finished in 43:15 minutes. This was a super cool idea for puzzle and executed tremendously as usual by James Kopp. I think my favorite deduction was a simple one, but made me feel good for finding it quick. It was using the circles in column 1 along with the blue line in column 3 to get a minimum. The rest flowed just as well. Great Puzzle!
This break in was absolutely marvellous🤩🤩
this ruleset really scared me but.... once you see it it's pretty straight forward
I went into that completely scrambling, because I did not understand the whole addend thing. Took me a while to grasp it. I finally got it and kinda ran with it, and finished a few seconds less than 33 minutes.
Not my greatest, but it was fun once I understood it. I agree with another commenter who said the addend rule could have been worded better.
33:24 I really liked this one. I like the math but was very glad it wasn't overly complex.
84:33. It wasn't so much that this puzzle was that tough, but it was more I had a lot of wacky pencil markings trying to keep track of everything. And I feel I mostly failed at that job. Mark gets a 6 in Box 4 around 11 minutes in, and I think it took me until 40 or 50 minutes in until I finally noticed it because of how...eccentric my markings were. I'm excited to see what a more rational solve looks like for this, because mine was anything but. I had a fun time with it, though.
Fun puzzle! Saw the break-in right away, but still took me 40:44. 😄
The rules scared me off and even though it looked easy for Mark, watching him made me feel I made the right decision to not try this.
28:26 A-team reference
It added up to 35 minutes of a solve xD Nice puzzle, but ez logic
18:08 for me. Quite a tough ending on this one. I enjoyed the first half a lot regardless.
00:42:42
49:36 for me
nice puzzle
36:34 for me. horrible solve. interesting rules, but could be written better.
Argh, when I got towards the end there were several lines that had single cells and therefore included the added only once. It caused me to completely forget that I needed the addend to be doubled in box 3 since the line took 2 cells. I can be so dense sometimes 🤦🏻♂️
I don't even know what happened with me but this took me so much longer than expected. 😂 Fun puzzle though!
can you please take a look at current Jane Street puzzle? it also has a tough sudoku. 😅
50.07 for me.
44:26 for me.
35:18 for me
Tried reading the rules and couldn't make heads or tails of it. I know what an addend but I don't know what it is doing or what we are instructed to do with it.
It's basically just saying the value in a circle in a given box gets added to each cell in that box for the purposes of the kropki dots and region sum lines.
@@dkamm65 somehow that still doesn't answer the question.
@@phillipsiebold8351in what sense does that not answer your question?
@@phillipsiebold8351 if a circle has a 1, every cell in that box is worth their digit plus 1 (so the 2 is now worth 3, the 3 is now worth 4...)
@@phillipsiebold8351 If the digit in a circle is a 5, then all digits in that box have 5 added to them. If a digit in the box with a 5 in the circle is a 3, then it is 5+3, which is 8. So, if it's on a kropki dot or a region sum line, for those clues it counts as an 8. But, for regular sudoku, it's still a 3.
Wow… I looked at the rules and was immediately lost, to then come here and see Mark jump right in was impressive
oof...I did it...but it took some work. 50ish minutes or so. New way of thinking.
Aaaaaaaagh!!! 🤯
More puzzles for math geeks... where's the damned logic these days????
WTF is addend? Is it so hard to write, Add the circled digit to values of its box?
is it so hard to learn a new word if they explain what it means right away?
@@augustoserpe and how am i supposed to know it is a new word? I am not a native speaker. It could mean anything. especially with their background in cryptic crosswords. Have you seen the words and definitions they pull there?
Addend literally just means a number added to another number. When learning basic math in elementary school, you learn that putting two addends together gives you a sum. Though if you quizzed most people here in America they probably wouldn’t remember ever having learned that 😂
And yeah, if you’re not a native English speaker, I get it, but it’s not a crazy word or anything.
@@dustpan5356 As far as I can recall I never learned the term "addend" so not just America. It would definitely be clearer to write the rules as "Each 3x3 box has an 'addend'. This is the value in the circle in each box. For the purposes of all other rules (other than normal sudoku rules), the value of each cell is equal to the digit in the cell plus the 'addend' for that 3x3 box." or preferably even just leave out the term addend in general because by the technical definition, both the circled number and the other number are addends. "Each 3x3 box has a circled digit. For the purposes of all other rules (other than normal sudoku rules) the value of a cell is equal to the digit in that cell plus the circled digit in the same 3x3 box"
@@LednacekZ Mark explains what it means in the video.
I'm not good with region sum lines as it is, this ruleset sounds impossible for me, and some others, going off of the comments. I think I'll pass on this one.
Yeah I can't even imagine how to get started with this. The possibilities seem quite literally infinite.
@@siorac1147 They seem literally infinite to you do they? Thankfully they aren't.
the term "addend" is for me as not-native speaker NOT defined. Sorry, but to introduce a new rule without a proper def., where often the "old" rules are extraordinarily explained by text seems off for me.
Mark explains what it means in the video.
The rules explain what you do with "addend". You don't need to know its meaning. It could have been calling the digit in the circles Bob for all the difference it makes to the interpretation of the rules. The digit in the circle for the respective box ("addend","Bob", whatever) is added to the digit in each cell to get the value of the cell.