newspaper level 8 clues JSWX

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newspaper level 8 clues JSWX

Postby urhegyi » Mon Apr 19, 2021 3:46 pm

A lot of my previous puzzles where to hard for the p&p solver.
Here one everyone should try: only pointing/claiming and subsets up to quads required.
Image
Code: Select all
#1/WX/B4,JS
7.......3....5.......................9.....6.......................8....2.......4
112333333112223344111125344612225544662555844665588894667589999667788899777777899
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Re: newspaper level 8 clues JSWX

Postby creint » Mon Apr 19, 2021 5:51 pm

Does not require subsets.

Spoilers:
Hidden Text: Show
You can even use the symmetry, it even solves with symmetry. So if you find one you know where you need to place the other.
Mapping 2-3, 4-7, 5-8, 6-9
After the first naked single you need some locked singles before you can make progress
After locked singles you could find 4x 4 and 7
After locked singles you could find 6x 2 and 3
After locked singles you could find 2x 4 and 7
After locked singles you could find 1x 5 and 8
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Re: newspaper level 8 clues JSWX

Postby Hajime » Tue Apr 20, 2021 4:23 pm

creint wrote:Does not require subsets.

Spoilers:
Hidden Text: Show
You can even use the symmetry, it even solves with symmetry. So if you find one you know where you need to place the other.
Mapping 2-3, 4-7, 5-8, 6-9
After the first naked single you need some locked singles before you can make progress
After locked singles you could find 4x 4 and 7
After locked singles you could find 6x 2 and 3
After locked singles you could find 2x 4 and 7
After locked singles you could find 1x 5 and 8

Get used to it. I learn a lot of him. Creint has the best solver, unfortunately it is private to him.
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Re: newspaper level 8 clues JSWX

Postby creint » Tue Apr 20, 2021 5:32 pm

I don't know what you mean by 'the best'.
There are more solvers out there, some have more tactics.
There are still things that can be improved to be more user-friendly.
You can test it if you want, how can I send it to you?
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Posts: 322
Joined: 20 January 2018

Re: newspaper level 8 clues JSWX

Postby urhegyi » Wed Apr 21, 2021 8:51 am

Inspired by the symmetrical solvepath proposed by Creint a somewhat harder variant which I hope symmetry will reduce the difficulty here too.
Image
Code: Select all
#1/WX/B4,JS
............6.4...3..9.8..4.........5.......2.........4..1.5..8...5.3............
111122233144422233144422233144455539177555339175556669778886669778886669778889999
urhegyi
 
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Re: newspaper level 8 clues JSWX

Postby Hajime » Wed Apr 21, 2021 11:32 am

urhegyi wrote:
Code: Select all
#1/WX/B4,JS
7.......3....5.......................9.....6.......................8....2.......4
112333333112223344111125344612225544662555844665588894667589999667788899777777899
It is also solvable using lots of Painting/Claiming (only 2 houses involved) and 2 XY-Wings
XY-wing : (2=3)r5c3 (3=2)r5c7 => (-2)r5c4 (-2)r5c6
XY-wing : (3=2)r5c3 (2=3)r5c7 => (-3)r5c4 (-3)r5c6
No Subsets and no Locked-Singles/Generalized-Intersection.
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Re: newspaper level 8 clues JSWX

Postby Hajime » Wed Apr 21, 2021 11:32 am

creint wrote:I don't know what you mean by 'the best'.
There are more solvers out there, some have more tactics.
There are still things that can be improved to be more user-friendly.
You can test it if you want, how can I send it to you?

Yes, 'the best' is of course my personal opinion.
Features to endorse my opinion
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Re: newspaper level 8 clues JSWX

Postby urhegyi » Fri Apr 30, 2021 6:23 pm

Can symmetry help here too to solve this JSWX in an easier way?
Image
Code: Select all
#1/WX/B4,JS
..1...5...........3..9.8..7...........................6..8.1..4...........2...9..
336666777366666777344444777344411222341111152333115552888555552888999992888999922
urhegyi
 
Posts: 495
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