Wait, There are Still No Digits in this Sudoku?

Normal Sudoku rules apply. Digits may not repeat in a cage. Cage sums are all 2-digit numbers, which may be written xy, signifying that the digit at row x column y must equal n, where n is the size of the cage, e.g. if a 5-cage sums to 28 that means that R2C8 is a 5.

▶ SUDOKU PAD - Our New App ◀ NOW AVAILABLE - You can now input your own classic sudoku puzzles into our software using our new App! The app also comes with 12 handmade puzzles from us and it is NOW AVAILABLE at these links:
Amazon: Search for “SudokuPad”

▶Our merchandise (including birthday merch) is here: ◀

▶ OUR KILLER SUDOKU IS ALSO AVAILABLE◀

▶ CTC FAN DISCORD SERVER◀

▶ OUR PATREON PAGE – JOIN THE COMMUNITY, SUPPORT US AND TRY OUR PUZZLE HUNTS◀

▶ OUR BACK CATALOGUE – ALL CATEGORISED WITH LINKS!◀

Miracle Sudoku is available on Android, Steam and App Store.

▶ THERMO SUDOKU is available too!◀

▶ TRY OUR CHESS SUDOKU APP◀

▶TRY OUR CLASSIC SUDOKU APP◀

▶TRY OUR SANDWICH SUDOKU APP◀

▶SEND US PUZZLES TO SOLVE/CONTACT US◀

▶FOLLOW US◀
Twitter: #crypticcracking
@crypticcracking

▶Music◀
Tim McCaskey (Guitar) or Lucy Audrin (Piano) plays Mozart's Sonata no 16 ("Sonata Facile")
▶SOFTWARE◀
Play the puzzle in the video by clicking the link under the video (above). Thanks to Sam Cappleman-Lynes and Sven Neumann for their work.
▶Logo Design◀
Melvyn Mainini

▶Opening Credits Design◀
Joel Blundell
▶ABOUT US◀
Hi! We're Simon Anthony and Mark Goodliffe, two of the UK's most enthusiastic puzzle solvers. We have both represented the UK at the World Sudoku Championships and the World Puzzle Championships. We're also "cryptic crossword" aficionados. Mark is the twelve-time winner of The Times championship and Simon is the former record holder for most consecutive correct solutions to The Listener crossword. We hope we can help your puzzle solving while also introducing you to some of the world's best puzzles.

Thank you for watching!
Simon and Mark

[ChrisRemo]

Mark’s eye-rolled “I feel blessed” is the funniest thing I’ve seen on this channel

[andrewnelson]

"Scanning like a Stormtrooper but shooting like a Rebel!" was brilliant.

[elvagabundo]

Mark it was such a joy to hear you exclaim "it's magnificently madness" and then find out you are 36 minutes in! I am sure you have exclaimed
it before but I can't recall you being so lost in a puzzle that you had lost track of time. It happens to Simon fairly often...it seems. When I started watching the channel it seemed like you had been relegated to the not so novel puzzles and were doing them by rote, but in the past year, the joy and dare I say genuine astonishment that has creeped into your videos has been a joy to behold. I myself usually hit that "lost track of time moment" about an hour into a solve, and that is a sure sign that you are absolutely meant to be doing exactly what you are doing at that moment
in time. I can't wait for my book to show up. I have abstained from doing the online puzzles until I have a physical copy in my grubby little paws. Hopefully it arrives in the next 3 weeks and I will be "Cracking the Chryptsmas" HoHoHo!

[robinbrown]

"I don't know what I'm proving and I don't know if I have proved it." - 19:03 Mark, this quote belongs in Alice in Wonderland.

[Gonzalo_Garcia_]

32:42 for me. Incredibly beautiful ruleset and awesome puzzle. The moment of ‘wait, I think I know what I’m supposed to do’ was so satisfying.

[G.Aaron.Fisher]

It amazes me every time how I can be 10-15 minutes ahead of Mark's pace for the break-in, and still get caught up to before the end. Once Mark gets his head around the puzzle-specific logic, he is an absolute speed demon in closing these out.

[Swisswavey]

Wow. Just Wow.
What a genius piece of setting.
It was brutally difficult though and I feel like I deserve a stiff drink. Unfortunately it took me so long to solve it's now way too late. Sod it, I've earned it!

[williamanderson]

Mark you were absolutely hilarious at the beginning when you were finding all the most unhelpful cages. It was amazing :D

[Coyotek]

55:23 ... took me a while, but I'm beyond proud as to having actually solved this one.

Nice puzzle!

[jez]

I actually got to roughly where Mark got to at 15:15... and got stuck there, which isn't surprising considering the insane mental arithmetic needed to solve this. More fun to just watch after that point for me!

[inspiringsand]

Rules: 04:09
Let's Get Cracking: 05:41
Puzzle Solved: 54:29
Mark's time: 48m48s

What about this video's Top Tier Simarkisms?!
Bobbins: 5x (03:37, 03:43, 47:44, 47:44, 47:46)

And how about this video's Simarkisms?!
Bother: 7x (34:27, 43:56, 43:56, 43:56, 47:44, 47:44, 47:44)
Sorry: 6x (06:12, 15:39, 15:46, 42:26, 52:02, 54:36)
In Fact: 6x (11:29, 15:09, 37:29, 52:57, 53:02, 53:48)
Obviously: 6x (06:12, 06:14, 06:49, 07:37, 14:22, 24:50)
Wow: 6x (26:58, 31:12, 33:55, 40:26, 48:50, 50:41)
Clever: 5x (01:01, 41:32, 41:35, 54:30, 54:30)
Brilliant: 5x (45:59, 46:04, 52:31, 54:45, 55:05)
Hang On: 4x (15:21, 16:42, 34:04, 41:35)
Goodness: 3x (10:14, 40:51, 54:16)
Naked Single: 3x (13:59, 51:30, 51:33)
Lovely: 3x (13:23, 37:10, 54:26)
What on Earth: 2x (00:21, 08:38)
Extraordinary: 2x (31:16, 54:59)
Deadly Pattern: 2x (54:03, 54:10)
Progress: 2x (07:32, 38:20)
Good Grief: 1x (26:17)
Secret: 1x (06:05)
Nonsense: 1x (29:38)
Missing Something: 1x (44:17)
Insane: 1x (36:23)
Break the Puzzle: 1x (10:34)
Incredible: 1x (41:32)
Stormtrooper Scanning: 1x (46:25)
Irritating: 1x (15:41)
Magnificent: 1x (36:18)
****ing: 1x (46:12)

Most popular digit, number(>9) and colour this video:
Three (95 mentions)
Twenty (20 mentions)
Orange (4 mentions)

Antithesis Battles:
Even (6) - Odd (0)

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!

[stevieinselby]

I managed to place the 9 in box 5 ... 👀
Fascinating puzzle, too difficult for my little brain but great fun watching Mark do battle with it.
But I can't help feeling he made the colouring far more complicated than it needed to be. It _doesn't matter_ about matching colours up, there is no point in colouring the _indexed_ cells. All you need to do is colour in a cage when you have placed the indexed cell to mark it as done, and then the grid is a heck of a lot less confusing!

[AvatarBowler]

“That’s telling me the square root of nothing” 😂

[marcosharlequin]

The magical circular bit at about 31:00 is probably too complicated for that bit of logic. The 6 should never have been in r1c7 when Mark was working out where the 6s went in row 2. For some reason, having carefully worked out the permutations, he stopped short of noting that this left two 6s in box 3. That was much easier to work out than the longer inference loop!

[Da_Rauch]

"Nice to see a naked single again finally"
Sentences you don't expect to hear on a sudoku-channel!

[MadScientist]

I was able to figure out the thing with the two cell cages (though for a long time I was confused as it looked like the puzzle was broken, before I remembered all the cages could be the same total and referring to the same cell, and in fact had to be). But I couldn't progress beyond that. Not surprising as normally I don't even attempt puzzles with a 50+ minute video length unless there is something in the title indicating the length was due to a mishap, but it's fun sometimes just to see how far I can get and what I can see, then watch the video to see what I missed. I'm kind of in awe that this puzzle both has a unique solution and is solvable by a human being, good job to Starwarigami for the puzzle and Mark for the solve!

[PathOfShrines]

What an astonishing construction. Truly original! and quite a mind-twister. Made a false start in my solve; ended up at 66:34 in total.

[axavio]

Amazing. Mental gymnastics beyond belief.

[jamesranson]

"I don't know what I am proving, and I don't know if I have proven it."

[deniseiln]

My copy arrived today. Happiness can come in bubble-wrap envelopes.