Extreme Sudoku: The Techniques You NEED To Know
We solve this viewer-requested “Extreme”-rated puzzle. Techniques discussed inclue XYZ-Wings, Y Wings, Finned X-Wings and XY Chains. Not easy!
#crypticcracking
#Sudoku
Tag: extreme sudoku, extreme sudoku, extreme sudoku guide, extreme sudoku techniques, advanced sudoku techniques, xyz wing, x wing, finned xwing, finned x wing, y wing, ywing, xy chain, xwing, sudoku tutorial, diabolical sudoku, fiendish sudoku, hard sudoku, extra sudoku, expert sudoku, sudoku explained, sudoku tricks
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https://cracking-the-cryptic.web.app/sudoku/JLGL2nHd9r
My Brother win extreme sudoku dont use not that littel number And no colors …i almoust do thé samé…have a littel problém try find help and find this joke…wtf UK mister sudoku???
Thank you especially for the finned x-wing walkthroughs!
here's a link if anyone wants to play https://cracking-the-cryptic.web.app/sudoku/tt9NBtHMgp
Thanks for the videos , they're fun, always think I'm slowly learning something, until I try to solve the next puzzle. Sometimes frustrating, e.g. 23:50 "This is an obvious choice". Not obvious for me, spent about an hour going nowhere… Why is it obvious? What am I looking for that makes it obvious…How do I know, when to search for x-wing, when chain? what to look for in finding a chain? when is not good time for empty rectangle, etc. But always enjoyable even when I can't do them…
with the subtitles added not able to see the complete puzzle
This is so helpful. I get stuck so much on "extreme" Sudokus. Thank you.
I followed you until you said that col7 row8 cannot be a 3. Why not at that point in time?
it seems that around 20:00 he could just pencil mark in all the remaining possibilities and solve it using simple elimination techniques
I like to play the puzzle before watching and solved this by using your technique of examining each cell in a box and employing a few x-wings. Admittingly, I'm not familiar with XYZ-Wings, Y Wings and XY Chains but will learn them if it'll make my sudoku life easier 🙂
I have such a difficult time spotting the more "visual" kind of patterns like Swordfish and sometimes even X-wings. Then I end up in my desperation doing Quad-forcing or some long ass alternating inference chain, sweating actual blood, then I put it in a solver and it solves it with pointing pairs and simple colouring lmao.
At about 23 mins why did you choose to test the 36 pair in row six over, say, the 58 pair in row nine? Is it because that was part of a triple?
At about the 18 minute mark why did you choose column two for the 8 x-wing instead of column three? Does the fact that the finned x-wing possibility in column three has a 'broken' wing have anything to do with that choice?
In the apps you use coloured squares – would it become useful to use coloured pencil marks?
I don't follow the bent triple explanation starting at 8:15. At this point, I don't see anything directly preventing C9R9 from being 5.
I would just like some more explanation on the xwing, the top left corner also has a 4 option,. so you have three fins that is not part of the x wing. This is strange to me how we can then consider it as a x wing?
gooood, i love how much tension is created from the minute 18
These are trivial techniques compared to actually extreme puzzles
This puzzle has 17 different solutions. Doesn't it matter?
If you were playing say a 16 by 16 sudoku grid wouldn't it be better to set a first and second square and for the computer to from basic rules show up where pairs ect are a bit like mine sweeper in reverse. I call them crab nets and the technique crab fishing and 2 pincers is more efficient than one or three pincers.
All hard sudoku puzzles come with at least one difficult test of logic than unlocks the game and this one had 4 or 5 such occasions. I think you found this harder than any standard puzzle! I also hate to use full notations so that some squares have 5-6 possibilities. I'm currently cracking most 'master' level puzzles but not all!
This puzzle is equivalent to a telegraph moderate I did while watching tv
IS that an xwing with those fives a 9:23? he seems to be ignoring the second five in the bottom right square
Hi, why was at 6:20 the ONLY right place for the 7 col1/row2. I can not find it out… 🤔