Can ANYONE Solve This Sudoku?

*** TODAY'S PUZZLE ***
Mark sent Simon this sudoku - presumably as a prank. It's called Progressive Divisors by DiMono and this is a something of a masterpiece. But is it actually solvable?!!! Give it a try at the link below:

Rules:
Normal sudoku rules apply. Progressive Divisor numbers are numbers where the first digit is divisible by 1, the first two digits taken as a two-digit number are divisible by 2, and so on. There is a nine digit Progressive Divisor number in row 1 of the grid, written from left to right. Each of the digits in row 1 is also in a distinct non-overlapping invisible region that sums to 3x the digit's value. These regions may branch, and digits may repeat in regions if allowed by other rules. The size and shape of these regions must be determined by the solver. Clues outside the grid indicate the first N cells in the row/column, read from outside-in, are a Progressive Divisor number, where N is the digit in the cell next to the clue. The cages hold two digit numbers that are either divisible by both digits (eg 24) or neither digit (eg 98).

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[DiMono]

What a pleasure to see this puzzle on the channel! I'm glad you enjoyed it. Thank you for the solve.

[Chalky]

A few of the mathematical rules for those attempting this before watching Simon do so.
2: last digits ends in a 2, 4, 6 8 (0 omitted because sudoku)
3: digits add up to a multiple of 3.
4: last 2 digits is a multiple of 4. this is because a 4 digit number consists of a number multiplied by 100 (25*4), plus "what's left" (5212 is 5200+12 for example)
5: ends in 5.
6: same rule as 3:, but it's also even (12, 18, 24, etc. the digits sum to a multiple of 3, and they're even)
7: steer clear of 7. there's a rule and it's complicated. but if you really want to know it... For any number abcde... and so on, you apply the following thing:
abcde is a multiple of 7 if ABCD+5E is also a multiple of 7.
Say 7007. that's a multiple of 7 if 700+35 (735) is also a multiple of 7. if we don't know, we continue. so 735 is a multiple of 7 if 73+25 (98)is also a multiple of 7. Then finally 9+56 for 63.
8:the last 3 digits are a multiple of 8. this is because 1000 is a multiple of 8 (125*8) so only the last 3 digits determine the disability.
9: the digits add up to a multiple of 9. Now Simon's secret which he only tells his favourite people just so happens to be a multiple of 9. Coincidence, i think not!

[Leap_of_Wraith---Stephen]

The puzzles where Simon just sits, staring at his screen, mumbling the same thing under his breath over and over like an absolutely mad person. I love these videos so much, I love to see a great mind being fully worked :)

[janahaibl]

When he reads the rules it feels like listening to an audiobook in a foreign language... beautiful to listen to, but i don't unterstand anything😅🇦🇹

[noambbyp]

Forget the puzzle, I'm just impressed by Simon doing long division in his head.

[leojs]

I’ve been feeling extra inspired by the channel and right now, at this very moment, am attempting to set my very first ever sudoku. It’s been quite a challenge and a huge blast. I’m crossing my fingers it’ll turn out good!! For now, sitting down with a video and relaxing is something my brain could definitely use though 😅

[bauke]

I've been shouting from 21:15 till 54:10 that r3c1 is a 9 because of the divider. Never taken Simon that long for something so obvious. Whould helped him so very much in the process for box 2 and 3.

[maxieh]

Once you have 3 and 6 in the top-left corner, you can look at the downwards progressive sum and immediately place a 9 in that third cell (since it can't be 0, 3, or 6)

[letMeSayThatInIrish]

32:23
Simon: "Seven scares me!"
Six: "ikr"

[specialkalberta]

Hmm. I'm going from not being able to solve these advanced Sudokus but at least understanding the rules to not being able to solve them and also not understanding the rules.

[kimberlypreston]

I don't understand what is going on in this puzzle at all. I wasn't paying enough attention to the instructions. BUT I still keep it on. Simon's voice is so relaxing. Especially after a long days work!

[bobblebardsley]

49:18 This might be both the largest number I've ever heard Simon read out while solving a sudoku, and also the first time I've ever heard a full line of a sudoku solution read out as if it were a 9-digit number.

[caitlinerickson]

Simon’s reluctance to do sudoku in a sudoku puzzle might be my favorite part of this entire channel 😂

[tedg]

A quick deduction: none of the marked locations for a progressive divisor can start with 5 because the 5th digit in that row or column would have to be 5. And the corollary is that if the first digit indicating the length is greater than 5 then a 5 is placed in the 5th position for that row/column.

[TheXynariz]

At around 35:00, the way I think of "is a number divisible by 4" is "I know 20 is divisible by 4. Is this number 0, 4, 8, 12, or 16 above a multiple of 20?" Only the last two digits matter, as Simon noted, becaue 100 is a multiple of 4.

And for "is a number divisible by 8", I think of it as "I know 40 is divisible by 8. Is this number 0, 8, 16, 24, or 32 above a multiple of 40?" Only the last three digits matter, and the third-to-last digit only matters if it's even or odd, because, as Simon noted, 200 is a multiple of 8.

I do it this way because multiples of 20 and 40 are relatively easy to come by in comparison to three-digit numbers.

Of course, in the puzzle itself, Simon could have saved a few minutes of logic by simply noting "if a number is divisible by 8, it must also be divisible by 4." That being said, Simon is a freaking genius and even though he struggled with this puzzle a bit at times, he nevertheless completely eclipses my ability to do said puzzle, and it still made for a very entertaining and informative watch! Thank you Simon (for the solve), Mark (for sending it to Simon), and of course to DiMono (you evil genius, you)!

[Scanlaid]

Only just realized any number containing all 9 digits once each will always be divisible by nine. Since the secret sum is divisible by 9, the entire string is too.

[inspiringsand]

Rules: 01:52
Puzzle Solved: 1:17:28

What about this video's Top Tier Simarkisms?!
Bobbins: 4x (15:34, 18:09, 48:02, 50:02)
The Secret: 2x (13:00, 13:03)
​Scooby-Doo: 1x (50:33)
Maverick: 1x (1:03:50)

And how about this video's Simarkisms?!
Ah: 16x (08:12, 09:45, 20:15, 22:24, 26:55, 27:50, 29:58, 31:14, 38:56, 39:02, 39:40, 50:28, 55:35, 56:31, 1:15:13, 1:17:41)
By Sudoku: 12x (04:35, 41:53, 47:25, 57:08, 57:11, 57:16, 57:25, 57:30, 1:09:40, 1:16:00, 1:16:02, 1:16:39)
Hang On: 9x (13:48, 27:52, 28:20, 33:01, 52:36, 1:03:24, 1:03:24, 1:08:06, 1:11:39)
Obviously: 9x (06:06, 22:38, 27:58, 30:45, 36:56, 59:30, 1:01:15, 1:05:53, 1:06:57)
Beautiful: 7x (17:45, 42:07, 46:09, 46:11, 54:22, 1:08:59, 1:12:35)
Good Grief: 4x (02:12, 03:39, 16:06, 1:15:16)
Sorry: 4x (09:38, 18:19, 50:02, 58:56)
In Fact: 4x (20:55, 44:29, 1:14:20, 1:18:01)
Wow: 4x (23:22, 24:01, 50:20, 1:13:47)
Lovely: 3x (53:00, 54:20, 1:06:29)
Brilliant: 3x (33:23, 1:17:37, 1:17:39)
First Digit: 3x (01:58, 04:08, 07:54)
Going Mad: 3x (28:20, 28:23, 43:44)
Pencil Mark/mark: 3x (18:29, 24:36, 37:46)
What on Earth: 2x (27:00, 52:47)
Clever: 2x (57:38, 1:06:07)
I Have no Clue: 2x (03:53, 50:43)
Stuck: 2x (26:47, 1:04:00)
Extraordinary: 2x (1:18:14, 1:18:17)
Surely: 2x (57:06, 1:16:14)
What Does This Mean?: 2x (15:22, 42:37)
Useless: 1x (1:08:23)
Goodness: 1x (27:00)
Bother: 1x (31:49)
Nonsense: 1x (28:24)
Fascinating: 1x (21:55)
Ridiculous: 1x (49:10)
Come on Simon: 1x (1:13:11)
Shouting: 1x (00:35)
Rotter: 1x (03:40)
Umpteen: 1x (09:32)
Think Harder: 1x (45:55)
Disappointing: 1x (59:59)
Whoopsie: 1x (42:28)
Progress: 1x (22:04)
Thingy Thing: 1x (22:54)
Cake!: 1x (00:50)

Most popular number(>9), digit and colour this video:
Fifteen (9 mentions)
Three (127 mentions)
Blue (4 mentions)

Antithesis Battles:
High (4) - Low (2)
Even (78) - Odd (12)
Outside (7) - Inside (0)
Row (37) - Column (24)

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!

[sillvvasensei]

1: All numbers
2: Even numbers
3: Digits sum to a number divisible by 3
4: Last 2 digits are divisible by 4
5: Last number is 5 or 0
6: Even number divisible by 3
7: ?
8: Last 3 digits divided by 2 are divisible by 4
9: Digits sum to a number divisible by 9

[susanquig]

Thank you, Simon for excellent explanations. Once or twice I had to stop the video and listen again to a short section. Given the rule set was gibberish to me I was pleased that I was able to follow your solve and your reasoning all the way through.

[alyssagambone]

I'm at 30:00 anxiously waiting for Simon to realize that R1C2 can't be a six because of the 6 in the box.