Simon takes nearly 30 minutes to solve this requested puzzle. There are x-wings, finned x-wings and a swordfish so perhaps it's not surprising...
Пікірлер: 47
@cmonkey635 жыл бұрын
A rainy Sunday afternoon, Simon's calm voice walking through a difficult puzzle, and I'm learning. Call me a nerd, but this is fun!
@CharlotteMimic5 жыл бұрын
KZbin's algorithm sent me to this gem of a video. Very relaxing and softly entertaining, thank you for this Simon!
@debralegorreta13755 жыл бұрын
Learned a lot seeing how you feel your way around the puzzle. Excellent puzzle very well explained. Thank you.
@thomaslong84014 жыл бұрын
X Wings sure are easy to see when it's pointed out to me!
@Blubb50004 жыл бұрын
...or after 15 minutes of looking straight at them.
@imransaifi23995 жыл бұрын
Thanks Simon for solving this sudoku for me. I really enjoyed and learnt too much watching you solve this sudoku.
@DaveGeelen885 жыл бұрын
Thanks for solving these :D Can solve alot of puzzles of a decent level, but get stuck on these very hard ones :D Having someone show how to think, helps very much to reach the next level. Namasé Mucho Gracias I love you forever man Peace be with you
@juanvenegas52535 жыл бұрын
ive always seen the x wing pairs. learned what they are called here and learned how to spot them better.
@bingewatcher3914 жыл бұрын
wow!! That was definitely impressive!! You know its tough when takes a fleet of x-wings and swordfish!!
@stridedeck5 жыл бұрын
I learn more from you struggling with these hard ones!
@coxsj5 жыл бұрын
Very helpful seeing you looking for leads within the puzzle. Also appreciate that you solved the whole puzzle on camera. It is helpful to see the end game as well. Many thanks.
@rabidsamfan5 жыл бұрын
Yay for the Nikoli puzzles to come. I really enjoy them.
@wossaaaat5 жыл бұрын
At 18:40, you had a uniqueness trick you could have used to limit those 3s a tiny bit, eliminating them from C9R2/5, although I'm not sure how that would have helped your solve (if at all).... I used it to eliminate possibilities, but I'd given up on snyder and populated the remaining possibilities by this point, slowly chipping away at them til I got to the solution.... brutal puzzle indeed. Took me almost 3x as long, but I got there in the end, which I don't think I would have been able to do before I started watching your channel. Thanks for all your work... even if it does leave me feeling woefully inadequate, haha.
@leefisher63665 жыл бұрын
Hi Magpie, I had no idea you were KZbinrs too! This should be worth watching.
@lornavantilburg46225 жыл бұрын
Did it in 28mins by using all your previous lessons.. helped as a distraction while dealing with the stupid flu lol
@julieannmyers87143 жыл бұрын
If you put your pairs in earlier, the unwinding goes much faster. (3,6 & 8,9 & 4,9) for example).
@jasonoliver35485 жыл бұрын
I love watching you solve these, it makes me more aware of x-wings etc. I would, however, like to point out that when you placed a 5 in row 1 column 6 (16:23 mark) that it was actually a bit of a guess because you only had one pencil mark there at the time. I watched that part twice, but please let me know if I'm wrong.
@CrackingTheCryptic5 жыл бұрын
Delighted you enjoy watching them. I actually felt a bit embarrassed about this one because it seems such an age to take for a classic Sudoku puzzle. At the point you mention, I think the 5 was forced. The difficulty with this puzzle (and my solve of it) is that I am constantly switching between different types of pencil marks - which I appreciate must make it very hard to follow. At one point a little earlier in the video I'd started to look down column 6 for options and I'd discovered that r1c6 could only be a 5 or an 8. Therefore, when I finally figure out that there is a 4/8 pair in col 6, I know I can eliminate the 8 from r1c6 - which just leaves 5 as the last possibility.
@goster40705 жыл бұрын
Thanks for the puzzle and hopefully more soon, Nikoli included!
@ajaypoddar27054 жыл бұрын
I love your videos on sudoku.
@danielspivak39265 жыл бұрын
I managed to spot the 1s a bit differently around 13:00; if you look at column 9, it has 1s within your finned x-wing, so that sort of gives you a "triple wing" (if that's the correct terminology?), which is really the same as finding the x-wing on the rows.
@nikarm222 жыл бұрын
I’ve also noticed that way. I know this is an old comment, and you probably already know but The most I’ve heard it’s called “swordfish”. And when there are 4 rows or columns a “jellyfish”.
@charleshultquist92335 жыл бұрын
I like these symetrical design puzzles
@27scole4 жыл бұрын
It is interesting. I made a mistake and by that I think I can tell which way the 2s are in the first xwing you found. You ruled out the 2 in row 6, column 8. Now, I overlooked there is a 2 in box 9 and I found therefore a couple 2s in row 4 column 8 and 9. And by that I found a new couple 2s in box 5 by which I found that the lower xwingpart 2 can only be row 6 column 6. Now since I made a mistake, it has to be the other way round haha and I feel this is true because it always bugged me a bit about Sudokus this perfectionistic vibe, as much as I enjoy the logic of it.
@27scole4 жыл бұрын
Ah I'm sorry you lack the wit to get it.
@davidhimmelsbach5572 жыл бұрын
I thought that your swordfish quickly established Column 2, Row 9 as a "small 4" -- does this make sense?
@msolec20005 жыл бұрын
Okuyama is 奥山 (which means "remote mountain")
@judahmcnicholl83345 жыл бұрын
at 6:40, why is it a 6, what is the logic preventing the middle bottom of that block also being a 6?
@skenming5 жыл бұрын
6 is the only option in that cell, known as a naked single.
@mrbrianakias15 жыл бұрын
In column eight 2 5 6 8 are missing and in that cell 2 5 8 are eliminated yielding a 6 naked single
@kiranagarwal70474 жыл бұрын
Which software do you use to solve the sudoku I want it so that i don't have to waste time on writing and erasing pencil marks
@goldenera70905 жыл бұрын
is it true that once we find an X wing, then there must be a "reciprocal X wing" in the same boxes? what I mean is illustrated by this example. Simon found an X wing on 1 in r5 C3 c4 and r8 c3 c4.....but then he also found what I call a "reciprocal X wing" on 1 in same boxes ie boxes 4,5,7,8 in r6 c2 c6 and r7 c2 c6 can we use this as a general principle though? or is it a coincidence?
@CrackingTheCryptic5 жыл бұрын
Just coincidence I think. Eg if you transpose a couple of columns you can shift the second x-wing into boxes 6 and 9 and out of 5 and 8 - which would make the x-wings not appear in the same boxes.
@goldenera70905 жыл бұрын
thanks Simon @@CrackingTheCryptic
@deucedeuce15722 жыл бұрын
How long if you didn't have to explain?
@Freeedy4 жыл бұрын
For once I managed to solve this puzzle under 8 mins ... I’m gob smacked!
@motorhead1995able5 жыл бұрын
You missed the 1's sharkfin but the alternative solution was more instructive
@christinebuckingham24804 жыл бұрын
So if you just did the 1-9s in the puzzle in order you would find most of this early on. I don't understand why you don't do it this way to begin with.
@AnveshKurapati5 жыл бұрын
Whats the app that's used?
@dvoorganisation4595 жыл бұрын
Thanks Sir
@TheRealDrWho5 жыл бұрын
At 03:26 why pencil in the 2 in r2c6 ? Couldn't a 2 also go in r2c4, r3c4 and r3c5 ?
@peternelson88765 жыл бұрын
He was looking at columns 6 and 7, and checking off which spots a 2 would fit, he wasn't looking at the whole 3x3 box. (Box 2)
@TheRealDrWho5 жыл бұрын
Ok thanks that makes sense now I also get why he eventually put the 5 at 16:13 and then the 2 in at 17:00
@peternelson88765 жыл бұрын
@@TheRealDrWho no problem 👌
@carlwessels46485 жыл бұрын
Awesome
@goldenera70905 жыл бұрын
can you also solve yesterday's telegraph diabolical please?