The King: A Fog Sudoku That May Leave You Emotional

[@puzzlepusher]

Thanks so much for solving my puzzle. Since it was for my dad, I wanted to construct a “pro-king” ruleset. I quickly discovered that you couldn’t force every border cell to have a king’s move pair and settled in this ruleset on every digit for which it was possible (credit to Marty Sears for making those digits a deduction). I was hoping the 4 would be a bit more of a red herring but you saw through that straight away. Wonderful solve, Simon 😊

[@HeiniGurke]

That was one of the best puzzles I've ever seen on this channel. I would never have been able to do the break in, after that I was occasionally shouting at the screen :D How you settters construct these sudokus and keep the suspense up until the end will forever be a mistery to me. Salute to your Dad (and his son of course)

[@kathyjohnson2043]

Great puzzle!

[@puzzlepusher]

@@kathyjohnson2043 Appreciate it :)

[@puzzlepusher]

@@HeiniGurke Thanks for the kind words :)

[@katiekawaii]

That is a brilliant puzzle. It's so beautifully _paced;_ you get to make clever, satisfying deductions the whole way through, and that's really difficult to set up. So much fun! I loved it.

[@reginaphalange5876]

you had me yelling “the eights!!!” for about ten minutes haha! great solve as always! 😌

[@damsonrhea]

Me too. He spent so long setting it up, only to forget about it after he had disambiguated it.

[@ianmcvicar491]

OMG... me too....😅

[@dustanloot]

I kept saying the 8s are boiling for their positions now.

[@keithwillenson8314]

@@reginaphalange5876 I saw your comment before I got to the solve, but then I understood it and was yelling along with you.

[@jaredwonnacott9732]

I'm yelling at him right now, and came to see if that was everyone else. He highlighted all those cells and then just ignored them. I'm pretty sure he's made a specific mention of all 8 other digits except 8 itself.

[@k7iano62910]

I used to shout out "look at the 8s!" Or "you're missing the 1s". But now, i know that Simon will definitely get to those numbers in a totally different way, and it's time for me to learn how to think and solve from a different perspective. I really appreciate how positive you always are and how good you are in breaking in the puzzles. Great job!

[@MarcusTheDorkus]

The way Simon's brain works is astounding. The way he said that you can prove 9 disobeys the rule by thinking about the 4 lines dividing the boxes is something I'm not sure I ever would have thought of (certainly not before a lot of other thinking). I stopped the video after he said that and tried the puzzle myself, going through it thinking not about kings moves but about line crossings. It made the solve go smoothly and made the solve of this brilliant puzzle very enjoyable!

[@hilldaniel]

Yes, I agree. I had to watch it twice to get the point.

[@patrickgass787]

Justin Vitanza is probably the best setter you've never heard of; every single one of their puzzles is innovative, interesting and utterly entertaining. Great to see them getting some well-deserved recognition!

[@martysears]

Agree!

[@puzzlepusher]

You are the kindest commenter in any medium in any community, I am sure of it ❤

[@davidrattner9]

​@puzzlepusher congrats on this debut from you!! Outstanding setting!! Much respect!!

[@puzzlepusher]

@@davidrattner9 Thanks, friend! I think this is actually my fourth puzzle on the channel though (I have a playlist to which I'll be adding this one shortly).

[@ericpraline1302]

Yes he is clearly a very clever man.

[@tomhoward4906]

My argument for 9 being rebellious is that if a 9 in the center box were a king’s move from another 9, that second 9 would be in the Phistomofel ring, requiring some other 9 to be isolated by a corner.

[@nosy-cat]

That's a clever deduction

[@thesolarfutureenthusiast1102]

Very nice. Mine was that the 9 in the centre box had to cover the pairs for column 5 and row 5. Obviously the intersection of those is the very centre where it can't cover either.

[@BozoTheBear]

that's very elegant!

[@DoodleNoodle129]

I did it by showing that the 9s in row 1 and row 9 that paired up would make it impossible for 3 9s to pair up, which was needed for an odd number. Your method is much better though, wish I thought of that

[@meiter]

Nice!

[@RichSmith77]

Simon: "I think that leaves one option for 7s" Audience: (Sharp in take of breath) Simon: "No, I've just seen another option" Audience: (...and relax) Simon: "I think that leaves one option for 5s" Audience: (Sharp in take of breath) Simon: "No, I've just seen another option" Audience: (...and relax, again)

[@timosteinsteiger7289]

Actually with the 7s, you could have seen that there was only one possible line, right? If it's the right line of the two lower red ones, that contains the three 7s, you'd still need 2 pairs of 7s across box lines. You couldn't do that in the lower half of the puzzle at all (rows 5,6,7,8 contain a 7, row 9 has no partner) and the same is true for the right half (exact same thing except with columns). Therefore only the top left is available to use for those two pairs. You can't use the middle box for either, meaning the line crossings would only use boxes 1, 2 and 4, which clearly can't fit four 7s

[@RichSmith77]

@@timosteinsteiger7289 Good point. You are correct. It's strange. I could have sworn I'd seen a way to make it work with 7s going down and right during my solve. But it seems whatever I was thinking would work, in fact couldn't.

[@puzzlepusher]

@@timosteinsteiger7289 Yes great spot. The very original (untested) version of this puzzle forced you to make that deduction but I decided it was a bit too fiddly so I moved the 5 there. With the fog, I think some people will still place all three 7s at once, but I also like the "it must be one of these two and either way X is true" deduction here and don't mind the given digit doing the rest of the work.

[@Queue28]

I’ve been addicted to CtC puzzles for the last several months since I discovered them. And this is unarguably my favorite puzzle so far. And I managed to solve it all by myself! Fantastic and so much fun! Thank you, Justin, for 170 of the greatest minutes of my life!

[@Akatsuki69387]

Eyyyy! Nice job!

[@Kairamek]

My favorite moment of solving alongside the video was when I was filling out the second 6 triple as Simon said "Sixes can have two triples, but I think that's impossible."

[@ahouyearno]

That fist pump on 3. After all these years Simon still gets so much joy from the small wins in life. That’s why I love him as a content creator

[@anderskjems8902]

What a brilliant puzzle. The first digit is one of the most satisfying I have ever deduced and put in a sudoku.

[@donkeypunch719]

This was a blast to watch. Normally I watch in awe as Simon solves these puzzles. Barely understanding his explanations as to how. However, this time I actually saw the pattern. I was so excited for Simon to see it as well and of course then do what he does best so I could see the solution. So satisfying and so much fun. I absolutely loved it.

[@w0rmblood323]

I've always found it a bit odd when Simon gushes over the beautiful logic of a deduction when he sees it, but this I think is the first time I really have been able to appreciate the sheer magnitude of brilliance on display here by the setter. This is easily one of the coolest puzzles I think CTC has ever showcased.

[@marys.9367]

I was whisper-yelling "the 8s, Simon, the 8s!" at my phone

[@frankwales]

Just in my head for several minutes, but yes. Having said that, I can't criticise Simon for not seeing what to do right away, as I sometimes see something in a puzzle only to realise it's been sitting there waiting for some time.

[@studgerbil9081]

yeah. I did this in a very similar way to how Simon did it, but I redid all of the boxes and lines for each digit, instead of leaving a mess of lines and boxes all over. It really helped with every digit.

[@uvendire]

Hahaha yes exactly...

[@map-reduce]

All the beautiful “windmill” setup and being so focused on other numbers I was also saying “8’s” out loud!

[@marys.9367]

@@frankwales oh for sure! I know I wouldn't have gotten very far on this puzzle at all, but it's enjoyable when I figure something out before Simon/Mark do

[@thejuggler42]

Every Justin V puzzle is innovative and really interesting from a sudoku theory perspective. This one had the added bonus of being very smooth to solve as well. It's a really nice tribute. Hats off!

[@puzzlepusher]

Thanks, Michael! This means a lot coming from the most innovative setter I know 😊

[@peterrintala6896]

I think this is the first puzzle that I would consider to be quite hard that I have solved fully on my own from this Channel. That was really fun.

[@zirco77]

I'm stunned by the oh-so-clever-and-simple demonstration for the "2nd rebellious digit". I did demonstrate it to myself as I was doing it, but this was a bit convoluted (and so it was for the first law-abiding digit), then I watched Simon's explanation... simply so beautiful!

[@Bugonchair]

Wow what an amazing puzzle! I really couldn't comprehend how this could possibly solve until I started digging in and everything just started falling into place. When you place 9 of the same number on the board at one time, you know you're doing something special.

[@A_CC_K]

Yay a fog of war puzzle, just what is needed after a stressful day.

[@inediblenut]

Perhaps the first time I ever beat Simon on a puzzle. The key for me was realizing that the digits came in twos and threes, and then using the provided digits to determine the locations for the longer sets first. Great puzzle!

[@GrimSoulBanisher]

The power that single 3 held was astonishing.

[@FelipeRodrigues-vj1zb]

Simon literally going through every number except 8. Never change my friend 😂

[@SebastianBaumruker]

To Simon: Here is an espcially kind comment for you as a thanks for this very enjoyable solve of a puzzle that will only refere to by it's proper name or "a work of art". When trying around with coloring to see what restrictions might apply it just kept rewarding me with beautiful patterns that all reminded me of a kings seal (probably just recency bias). Simply wonderful. Thank you Justin for this amazing puzzle.

[@Squishy3757]

That big 8 in the center is screaming, “how does every other 8 touch another 8?”

[@caseyglick5957]

Plus the radioactive orange "the eights are here" markers.

[@stumbling]

Please put spoilers in a reply to yourself.

[@janerobson2297]

I managed this in 36 minutes after Simon had pointed out the need for tripples. I managed to get the 3s much faster and grasped the meta implications more easily. But saying that, I wouldn't have got the patterns on the 8s without Simon's help.

[@MeriaDuck]

51:30 Yes I remember that about the eights. And my dog is wondering why I'm telling my phone all about eights for the last few minutes 😂 That's one for the books 📚! (Maybe not literally, fog revealing puzzles in a book are hard. A scratch layer, but the horror when one makes a mistake 😂)

[@pqRachel]

Usually these longer puzzles will just be background noise. But taking the time to actually tell me to pause and find the logic for myself was nice. I actually did and it was so cool.

[@Jukka70]

It always amazes me just how genius his problem solving skills are, but it's so frustrating when he misses the obvious. I'm sitting going, 8!, 8!. Well maybe it's 9's, ugh, every number stated except 8, lmao. I just died laughing when he went, oh here's a thought, you remember when we talked about 8's, while the rest of us are screaming, yes, yes, yes

[@frmjewduhh]

Simon started the solve and then I immediately saw where the triple of 3s had to go. So I paused the video and started the solve myself. Finished in about an hour. What an incredibly original variant of "King's Move" and "Fog of War". The 8 could have been found with a blank grid but the given 4 was necessary to find the 3s. Great logic on the construction.

[@OmikronTitan]

22:32 "Seven is an odd number." BOOM! Knowledge.

[@inspiringsand123]

Rules: 05:00 Let's Get Cracking: 08:53 What about this video's Top Tier Simarkisms?! Bobbins: 1x (32:24) Knowledge Bomb: 1x (22:34) Three In the Corner: 1x (58:58) And how about this video's Simarkisms?! Sorry: 9x (05:36, 21:47, 23:12, 26:44, 26:56, 33:39, 43:35, 44:36, 44:36) Beautiful: 8x (21:05, 21:32, 52:03, 55:17, 57:06, 1:08:45, 1:08:46, 1:09:25) Brilliant: 7x (18:30, 29:40, 32:36, 32:38, 36:17, 1:08:37, 1:09:34) By Sudoku: 7x (33:09, 36:08, 51:00, 1:05:38, 1:05:51, 1:06:24, 1:07:52) Ah: 6x (12:31, 31:31, 32:31, 51:34, 52:56, 53:12) Pencil Mark/mark: 6x (40:21, 41:04, 56:06, 58:42, 58:45, 1:06:27) Clever: 5x (18:36, 18:39, 35:05, 35:05, 38:45) Lovely: 5x (23:34, 52:18, 1:04:16, 1:09:06, 1:09:08) In Fact: 5x (05:31, 14:08, 35:56, 1:03:16, 1:04:13) Naked Single: 4x (56:09, 1:06:38, 1:07:44) Hang On: 4x (24:31, 32:07, 38:52, 38:52) Obviously: 4x (10:32, 23:26, 23:55, 28:49) Astonishing: 3x (00:48, 00:48, 50:15) What on Earth: 2x (26:13, 47:59) Goodness: 2x (24:19, 27:23) Deadly Pattern: 2x (1:07:59, 1:08:27) Shenanigans: 2x (49:59, 50:04) Wow: 2x (1:00:08, 1:09:08) Fabulous: 2x (01:34, 01:34) Cake!: 2x (04:19, 04:49) Weird: 2x (18:42, 40:25) Good Grief: 1x (08:40) Useless: 1x (45:46) Bother: 1x (45:56) Apologies: 1x (58:51) The Answer is: 1x (42:15) Naughty: 1x (38:56) In the Spotlight: 1x (59:01) Horrible Feeling: 1x (26:08) Shouting: 1x (04:12) Surely: 1x (09:30) Whoopsie: 1x (1:05:42) Grind to a Halt: 1x (44:39) What Does This Mean?: 1x (21:37) Have a Think: 1x (42:35) Nature: 1x (42:35) Most popular number(>9), digit and colour this video: Thirty Nine (3 mentions) One (93 mentions) Orange (4 mentions) Antithesis Battles: Even (10) - Odd (9) Column (26) - Row (7) 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!

[@SinanYumurtacı]

Sinvicta's channel would be a great fit for this. He uploads on a strict daily schedule.

[@DoodleNoodle129]

I've been trying to get through all the fog of war sudokus featured on this channel, and I must say this is one of my favourite. Can't wait to do more

[@Jason-su9cs]

One of my favorite puzzles to solve! It incorporates colors, classic Sudoku logic, fog mechanics, process-of-elimination deduction, and an ingenious final step-for me, it was the 3/9 Schrödinger pair deduction, as one of the threes couldn’t be within a king’s move. Brilliantly crafted!

[@dekomali]

Great puzzle! It suited my mind and ways of thinking. Seemed I found my ways around it easier than Simon did. And that is rather unusual when I solve the puzzles on this channel alongside Simon. Thank you so much for this channel by the way.

[@linforcer]

This was such an amazing puzzle to solve, I haven't enjoyed a puzzle this much in a long time.

[@PinkSupervisor]

This sudoku had some of the most satisfying moments I've had the last couple of days. I finished in 59:19 and was grinning ear to ear from the first couple digits I placed.

[@Rubrickety]

Spectacular puzzle! Proud to have solved it.

[@MarushiaDark316]

Simon's triumphant fist pump at getting that three in the corner.

[@SameM1stakes]

What a puzzle. I don't think I would've ever gotten the first digit without the video

[@rmjarvis]

I love the red herring given 4. I took a little bit trying to think about whether there was something to deduce from that before moving on to broader considerations. Lovely break in.

[@j0rd33]

51:26 “oh here’s a thought” and it’s what i’ve been shouting for as long as i can remember😂

[@MattYDdraig]

21:23 Beautiful use of the grid's basic geometry with clever given reveals to push things around. Absolutely fabulous.

[@eddieharwood7788]

What a fabulous puzzle. I realised immediately that 1 must be a rebel, and then Proved my gut that 9 was the other. In working this out the 8s basic layout was clear. However as usual I slowed down towards the end and spent some time working out wher the 2s and 4s went. 66 minutes though I was pretty chuffed with that.

[@anthonyhastings5961]

I'm just bewildered with this puzzle and astonished that you solved it. Well done

[@sarahcicconetti6826]

I actually managed to solve this one on my own! Very exciting! The trickiest part for me was the sixes since it took me some time to realize it could be two triples instead of three pairs. Such a great feeling when I understood it had to be that way. Lovely puzzle and lovely solve by Simon!

[@dustpan5356]

Drawing the lines (as Simon did) really helped me visually see my options for triples. But as usual, Simon keeps colors/lines/etc past their usefulness. In this case, removes any lines that you’ve either put a triple on already, or you know for sure doesn’t have 3 of the same digit. This drastically reduces the number of lines drawn and makes it way easier to see what your possibilities are (especially for the 5s and 6s in this case).

[@mattjones2477]

That was an absolute humdinger! I’m so impressed by setter and solver alike.

[@cotroneigiuseppe888]

The fog actually helps. It' always a mistery, but there is a bit satisfaction to reveal a mistery!😂❤🎉

[@village_vacuumer]

and at least you know if you're right

[@thebishop4112]

Loved this, although I must confess I did the first couple of digits largely by intuition rather than by rigorous proof. I finished realising that I'd completely failed to consider the possibility of the eights being 2x3 plus a pair, but perhaps that was never possibly. Loved the misdirection of the given digit! Thank you to both Simon and setter.

[@martyhelle]

The eights can't be 2x3 plus a pair. There are only four lines, and each has to place two digits to get to eight. A set of three uses up two lines, but does it using only three digits, not four. If you had two sets of three, you would have used all four lines up, leaving no line left for the remaining pair of eights to straddle.

[@FrancisFjordCupola]

I found it fun to figure out. My intuition was immediately that 1 and 9 should be the rebels, so I thought how I could make the 8 work. Then the 3's... because that could only be 3 in a row. From there the other odds and ends. Came down to figuring out the 249's and I loved figuring out the 9's through precluding them from the king's move. Then the 2's and 4's could only fit in one way. Love it.

[@Qaos]

I wasn't expecting such a clean way of deducing that 9 was rebellious! My own line of logic, that all 9 of the 9s would have to be a king's move apart from another, and then proving that to be impossible, was far more convoluted

[@DarkChasm]

Excellent puzzle, love the conclusions you have to make at each step, not too diff but very interesting! ❤❤❤❤

[@jmcginty96]

I think Simon’s brain gets so excited seeing things that he inadvertently abandons his previous brilliant deductions to chase another, less helpful one before he completes the first one. 8s and 4s this go round. Makes him all the more lovable, at least to me.

[@vananything]

This is a break in for the ages! I love the idea of spooky action at a distance fog of war!

[@wokkawicca]

That...was awesome. What a great tribute to your dad. Played with 4s for about 15 min then started thinking systematically.

[@christieh8697]

First time I've beaten Simon. Just under 40 minutes. So proud! Brilliant puzzle 👏

[@StewartyMac]

Grinding to a halt and considering every number except the one he should have been (especially when he worked out the 8 logic brilliantly at the start) is classic Simon. Never change, mate.

[@flaviomadeiramirandafilho3469]

37 minutes for me and it was delightful, the first digit was a great first clue as well

[@chocolateboy300]

I finished in 99:59 minutes. This was a very fun puzzle with a really cool break-in. I was so happy when I was able to put that 8 in. I, initially, misinterpreted the rules and thought in meant the connections were the number, which would have ruled out every single odd number. I think my favorite part was the placement of the connected 3's. I had a really fun time with this puzzle. That was a sweet message and dedication at the end. Go Thomas Go! Great Puzzle!

[@markmajkowski9545]

Actually a lot easier than you might think. 1-9 cannot have pairs - Where must the non matched 8 go? Then you need a triple 3. Plus the 5 and 7 need triples! The sixes - cute!

[@Coyotek4]

41:07 ... Hail to The King! Nice puzzle!

[@jaredwonnacott9732]

51:42 Yes, we remember. We've been remembering for 20 minutes.

[@RossReedstrom]

Once Simon pointed out the importance of thinking about the lines, I went off and solved it in 24:04. I came back and ended up yelling about the eights, too!

[@muskyoxes]

It's the end that impressed me - just a handful of cells left to go and i needed a negative constraint three or four times to do it

[@qqleq]

Only 7 minutes slower than Simon - My day can't be spoiled anymore!

[@olivier2553]

Old habits die hard. While visiting France, I could watch CtC in the evening, but I still watch it while taking my breakfast, like in Thailand. It is such a great way to get my brain working in the morning,

[@franzelmagetower]

What a wonderful dedication to the constructor's father. Very fun solve with a great first digit! 28:05 for me but it's possible I leapt to some logical conclusions without definitively disproving the alternatives.

[@BennyTheC_]

"oh heres a thought" about the 8s had me laughing haha.

[@delayed37]

Stone cold genius setting and a great solve!

[@Antiknight]

Amazing idea and first digit! Cool fog puzzle :D

[@davidrattner9]

Agree with you infinity percent!! 😀

[@tantricsarcasm9133]

We've had "X-Wings" and "Y-Wings", now we have "Darth Vader's Ship" :)

[@longwaytotipperary]

Look forward to live stream, but will probably have to watch a couple of days later! I know it will be fun!!

[@denisdodelin-m1e]

Thank you Simon for the 1st figure. I was lost in the fog ^⁠_⁠^

[@riteshrohan4871]

The first puzzle that I have been able to solve without having to watch the video

[@jpritchett42]

I quite liked this one. Was almost able to solve it on my own, but the 4's tripped me up.

[@penningmeestercgkdelft9159]

The frog in Simon's throat is probably a Frog of War today... Yet it is also quite a Kingly frog!

[@biffm.2806]

Watching Simon solve the puzzles makes me feel smart and stupid at the same time 😅

[@QTsnacks]

I couldnt help but scream “the 8s will reveal the 6s!” over and over 😅😅

[@craigw1701]

Wow! This was so daunting at first, but I love fog-of-war, the way each reveal guides you to the next part of the pussel! my time: 43:52 My strategy: I started looking at the numbers that were hardest to follow the rules i.e. the 9. Realizing that it would require a 3-in-a-row and one of them blocks out too many border crossings that you can only get to 7 using one, and only if the 3 started/ended inside the centre box. This also meant the 8s couldn't use a 3, so had to be crossings around the outer two rings, putting the 8 in the centre. Then knowing that all odd numbers needed to have a 3-in-a-row, there was only ever one valid place for each of them. then it was just normal sudoku until the end :))

[@austinsinger7565]

@14:47 yay you agree with me about the rebellion numbers. I deduced this too and pause to listen to what you had to say.

[@rowanbrown5541]

As much as the 8s got me like everyone else, the 9 in box five was what really had me flipping. You almost which one it had to be and then second guessed, but the possible 9s in box 2 proved your theory

[@titusadduxas]

47:04 - Stunning puzzle. It took me about 20 minutes to break in but once I’d gone through the permutations it all fell into place beautifully. And I beat my hero Simon for a change!!! Great puzzle.

[@whelmking6497]

Crazy fun. Found the break-in quite easy by logic, but struggled a bit in the middle to determine which number to focus in on next. 43.11.

[@noxumbra173]

42:00 minute mark, Simon knows where 4 "8" go.

[@christopherneil8265]

I found that there was probably a decent amount of number theory that you could apply to this one. As soon as you identified where the 8s would go, I immediately had the thought that the 4 blocks which didn’t have Kings move 8s would have another number by Kings move. Also, that they wouldn’t be part of any other Kings move outside the box.

[@SourceOfBeing]

This is the first time I've tried a puzzle before it appeared on the channel. Admittedly, I gave up quickly because I couldn't figure out the break-in.

[@pascalhaering]

A brilliant puzzle and as always a great solve too. I don't usually mind when the colouring stays in the grid till the end, but those lines drove me crazy once they weren't usefull anymore. I could not see what was going, and I believe Simon would have gotten much quicker through the second half of the puzzle if he would have deleted the lines after placing the first 5s in the puzzle.

[@village_vacuumer]

i see you more than my boyfriend

[@schoo9256]

2 hrs 3 mins (and a couple of wrong turns, and one hint from Mark about 8s). For some reason i realised the sevens were very restricted, before i realised the same was true of the 8s! What a beautiful homage to his father.

[@matthewphillips5911]

Only the second time I got a faster solve time than Simon (conveniently ignoring that he's explaining stuff as he goes)! Clever use of King's move, a fun puzzle, and a great solve as always!

[@StephaneBura]

Beautiful puzzle and solve.

[@piarittersporn]

Brilliant and very adventurous foggy.

[@getnis-m6g]

i could never solve this puzzle but i'm proud of seeing 8s again 5 minutes before him.

[@svanzijl75]

This would have been unsolvable for me, but i understand the logic. Surely this is a very hard puzzle

[@andymitts251]

The Fog turns this from a quirky ruleset into a masterpiece, forcing you to the make the deduction on 8s and the "rebellious" digits immediately instead of chugging along with random possibilities.

[@Nyarlah]

Lovely idea, and very well executed, thanks.

[@pedrohernandes3623]

Never saw Simon so happy for placing a 3 in the corner 😂

[@AndrewYakovenko]

This was so much fun to solve!

[@sizusama]

You can definitely eliminate the eights from the Phistomefel Ring and adjacent cells once you see Simon's "four lines"

[@adamdobrowolski2510]

Solved in 42:24... and my last bit of logic was determining the King's 2's and 4's. How fitting! Also, cheers to Thomas Vitanza!