The Biggest Sudoku Channel On KZread.
Two videos every day (8.30pm & 11pm UK time)
Hosts (Simon Anthony & Mark Goodliffe) attempt to solve a world-class puzzle live in each of these videos.
Mark Goodliffe (12 times winner of The Times Crossword Championship) and Simon Anthony (former record holder for consecutive Listener Crossword solves) have represented the UK in the World Puzzle and World Sudoku Championships on numerous occasions. Each week there will be something for everyone from beginner through expert!
Don't be surprised if, from time to time, the videos include other puzzle types too (eg Japanese pencil puzzles, puzzle hunts etc)!
Check out our Twitter: @crypticcracking
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A very nice puzzle. My time today was 27:51, solver number 3701.
Took me 57:58. Feel like there were a lot of points where I was just really missing some obvious logic (doesn't help I tripped myself up with a couple of mismarkings along the way, ha), but it was a really great puzzle through and through. Very fun solve!
18:50 disagree sure, it's "obvious" once you see it, but you won't see it until you have asked all possible OTHER (and irrelevant) questions.
You could have concluded that r6c9 was 5 as soon as you concluded that the row only had a single digit outside the sandwich as you already knew it was part of the sandwich in c9 and therefore couldn't be 1 or 9. That said, good solve, and I'm sure I would have missed it just as easily if I had to talk the entire time.
One of those rare cases when I think me and Simon could make a good team 😄Figuring out the difference approach (including the idea of 4x=5y, 2x=7y and so on) took me a couple of minutes, a minute later I've got the 9 2 8 1 square at the bottom... And then I got stuck for like an hour 😐Brilliant puzzle, as always. I've had a lot of fun twice (solving and watching) 💖 P.S. I suppose, the most vigilant watchers may deduce the amount of time Simon spent on those phone calls looking at the solving time (no spoilers provided)😉
I think this sentence at 22:53 sums it up perfectly: "It feels like a puzzle where you have to ask exactly the right question to make progress, but once you get the question, it's like ah, that was a completely reasonable question I should have asked". (It took me even longer than Simon, though.) → 19:20 "So 9 is in one of those two cells [c4r46]" - and Simon forgetting the Sudoku hits again! (Found at 23:14.) → 28:15 "So it [the yellow cage] has to grow" ... 29:09 "Although I know it grows, it grows into one of those two cells [r3c1 and r4c2]" - The question to ask here: Where the blue digit goes in the yellow cage? (The shape of the cage became solved without it at 31:19, and the question about the blue digit was then asked at 32:33.) → 30:13 "this domino [r5c23] doesn't contain 1 or 2, so the minimum sum of these squares is 34, which would add up to 7" - The question to ask here here: where can the 9 go in row 5? (Found at 31:01) → I also postponed the 31 cage until the end, as I didn't want to do the arithmetic.
All it took was considering that horizontally you cannot place only 2 and 3 both outside or both inside along the horizontal rows without forcing a 2 or 3 to neighbor either 1 or the 2 or 3 in its row, thus breaking the difference of 4 rule.
75:10. But I love a fog of war so I persisted.
Finished in 23:38. Fairly straightforward sandwich irregular region sudoku. Fun puzzle!
And finishing with a poem. ❤️
Wow, that was cool. Thank you for the lesson. Love the exclusion thing. I was able to fill it in after the 19 EXAMPLE. Very nice.
This is incredible!!!
Very approachable, fun and relaxing. Finished in 23m40s at a seamless yet deliberate pace. Just in time for my chicken empanadas to finish baking!
This one took me a while but I got it in the end. Beautifully constructed puzzle, I loved it. Simon’s getting there faster than I did, naturally, but I’m glad he’s getting stuck in the same places I did.
What happened to the other video?
9:41 No, I don't think I will.
47:04 - That was excellent. I’m very happy to have got that done a bit quicker than Simon for a change.
Nice feature, and congratulations to Tyson! 😁✌
Very good.
Don't feel bad, Simon, I got stuck in several of the same places you did! Was able to finish in 33:58 (conflict checker off), this was a really cool, albeit tricky puzzle! Many props to Nurator for it.
36 mins in.. where is 5 in box 3? Can it go in the 16 cage? The answer is no as the other digits have to sum to 11 but cant be 29,38,47 or 56..
that first digit is clever
Finished in 20:31. Pretty straightforward killer cage fog of war sudoku. Clever uses of the cages to eliminate possibilities. Fun puzzle!
Found two swordfish, 2 and 7. Oddly enough, these were both in columns 2, 5, and 9. While these set up the 2's and 7's to fall like a row of dominos waiting for the first tilt, I could make no progress until Simon pointed out the two hidden pairs. This gave up a lone 4, followed by the first 2, and the rest just flew into position.
How Simon's brain works: Starting at 26:30, Simon runs through the same mental gymnastics three times in a row, and each time he exclaims how brilliant that is. The conclusion each time is that if a cage has no 5 in it then it has no 5 in it.
42:25 the logic I used for Box 3 was to ask if 5 could be in the 16 cage. With no 9, 3, or 4 available, all possible combinations were eliminated, placing 5 in the middle of the box by sudoku.
19:25 It's hard to believe Simon REALLY DID NOT SEE where 9 has to go in the middle box !!!!
27:01 for me, a great example of why I love fow puzzles
Very nice puzzle. 16:36 for me today.
29:28 (circa) if the 8-cell cage grew left, then you have a roping problem: The three cells in box 2, row 2 have to go in box 1, row 1, and then ... all three of them have to fit into two boxes in row 3 of box 3. So the 8-cell cage MUST grow down.
44:47 missed 6's sudoku into B8
Simon....
"leftmost cell of top row of cage" good to see that the wording of this is, not only succinct, but correct, and also perfectly clear
122:20 for me. I got a good start, but then got stuck for a while. Had to color everything (especially the 678) to get anywhere. Some tricky interaction of cages, fog, geometry, and arithmetic.
Great color choices today Simon!
A very fun puzzle! Enjoyed it immensely
I liked the first Fog of War that had a “life bar” with something like three or five hearts and every wrong placement lost you a heart and if you ran out, you failed the puzzle
This took me a little under 30 minutes - but I had been somewhat alerted by the title to look widely and carefully. And still there were a couple of moments of thought. The use of the geometry of the cages was really nice, and there were a couple of times where a change of gear was required from cage logic to Sudoku. I likewise thought the 16 cage less useful than it actually was. I "look foolish" in private and often.
I meant the title of the video - which I paused to try the puzzle.
"Unexpected Places" is a perfect title for this. So many digits feel like they are far away from their clues.
It took me 01:12:00 on the dot to finish this puzzle. My first fog of war attempt! This was fun for sure. You really need to be thorough about your logic to get this done!
A very nice puzzle,with clever logic leading the interactions between the cages. My time today was 12:38, solver number 8129.
Does anyone else feel personally offended when he says things like "Oh Simon, why is your brain so bad?"
Simon's perplexitude that entering digits in a cell _that doesn't have any fog anywhere near it_ doesn't clear fog will never cease to bemuse me... Great puzzle, thank you Nurator ... it took me 36 minutes and was a joy throughout 👍🏻👍🏻 The funny thing was that having solved it once, then watching the video afterwards half the time I couldn't remember/figure out the next step when Simon got stuck either 😆
I've only been doing variant sudoku for about 6 months, but decided to try this one- I got the first digit almost immediately and then got stuck and keep having to come back for hints so don't worry Simon, you still did way better than me! 😂 I would never have found that logic you were kicking yourself for not finding more quickly!
Simon, knock off the self-abasement. It's getting old. (Especially, in the description - and title - you trying to debase yourselve in the 3rd person) Presumptuous, AND it's getting old. Continuing with puzzle now.. ;) 😉
19:21 for me
more geens on the screen than grays, nice