Hard puzzles, chains not required.

Post puzzles for others to solve here.

Postby wapati » Wed May 23, 2007 4:48 am

This is a good one, I think.

I have added Sudo Phil to the solvers I check when I look at a puzzle.
Sudo phil looks at how many of each technique are needed. I am thinking
that that does matter and I prefer that to SE rating based on the single "hardest" method.

Anyways, google Sudo Phil or not. I like it. http://pgailhac.free.fr/indexa.html

I also use SE, SQ, SA, SS every day, and some others less often, but often.


Code: Select all
. 9 .|. . 8|. . .
1 4 8|. . .|. 3 .
. 6 .|. 4 .|2 . .
-----+-----+-----
. . .|. 2 7|. . 3
. . 4|9 . 3|5 . .
3 . .|4 5 .|. . .
-----+-----+-----
. . 9|. 7 .|. 5 .
. 2 .|. . .|1 6 4
. . .|5 . .|. 9 .


Typo edit
wapati
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Location: Brampton, Ontario, Canada

Postby wapati » Thu May 24, 2007 4:10 am

Funny, this. Solvers tend to think this a bit easier than it is.:(

Code: Select all
. . .|4 1 .|. 5 .
3 . .|. . 8|. . 1
. . .|5 . .|8 9 .
-----+-----+-----
5 . 7|. . .|. 3 .
. 3 .|. . .|. 2 .
. 1 .|. . .|4 . 9
-----+-----+-----
. 9 3|. . 1|. . .
2 . .|9 . .|. . 6
. 5 .|. 7 6|. . .
wapati
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Postby wapati » Fri May 25, 2007 4:04 am

There are a lot of givens. Like, that helped?

Code: Select all
. . .|. . .|4 7 .
. . 1|7 5 .|. 6 2
8 . 7|. . .|5 . 9
-----+-----+-----
. . .|. 8 1|. . .
5 . .|4 . 9|. . 1
. . .|5 2 .|. . .
-----+-----+-----
2 . 4|. . .|1 . 6
1 7 .|. 3 4|9 . .
. 9 8|. . .|. . .
wapati
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Postby wapati » Sun May 27, 2007 12:13 am

Delicious puzzle, big fish and fins !:D

SQ rates this pretty low and yet it is amongst the hardest puzzles I have seen that will submit to patterns.

I suspect that "fins" is throwing a curve at all solvers.

Code: Select all
5 . .|. 8 .|. . 2
. . 6|9 . 2|3 . .
. . .|. . .|. . .
-----+-----+-----
. . .|. . .|. . .
3 . 5|. . .|6 . 9
8 . 9|5 . 7|2 . 4
-----+-----+-----
6 . 4|2 . 1|7 . 8
. . .|. 5 .|. . .
2 . 3|. 7 .|4 . 6
wapati
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Postby wapati » Sun May 27, 2007 1:36 am

Bonus puzzle. I got today off, I usually work 6 days per.

Jelly and Swords by SE. Swords and sashimi sword by SQ.
Other solvers tend to freak.:)

Code: Select all
4 . 6|. . 2|. . .
. . .|. . 4|. . .
. 5 .|3 . .|1 . .
-----+-----+-----
. 8 .|1 . .|9 3 .
. . .|. . .|. 2 .
. 2 .|9 . .|8 5 .
-----+-----+-----
. 3 .|8 . .|5 . .
. . .|. . 7|. . .
7 . 1|. . 9|. . .
wapati
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Location: Brampton, Ontario, Canada

Postby wapati » Sun May 27, 2007 1:59 am

This one may be less hard.
It does need 4 different advanced methods. (That works for me!)

Code: Select all
6 . .|2 1 .|. . 7
. . .|8 3 9|. . .
. 2 .|. . .|. 9 .
-----+-----+-----
1 . 7|. . .|5 . 3
. 4 .|. . .|. 8 .
9 . 5|. . .|7 . 6
-----+-----+-----
. 1 .|. . .|. 5 .
. . .|4 5 6|. . .
5 . .|3 2 .|. . 9
wapati
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Location: Brampton, Ontario, Canada

Postby wapati » Sun May 27, 2007 12:17 pm

There are several swordfish here...finned though.

Code: Select all
. . .|3 . .|. 5 .
. . .|. 6 .|7 . 9
. . .|. . 1|4 6 .
-----+-----+-----
5 . .|7 3 .|8 . .
. 4 .|6 . 2|. 3 .
. . 2|. 1 8|. . 6
-----+-----+-----
. 7 4|1 . .|. . .
3 . 9|. 2 .|. . .
. 2 .|. . 7|. . .
wapati
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Location: Brampton, Ontario, Canada

Postby daj95376 » Mon May 28, 2007 1:08 am

wapati wrote:Bonus puzzle. I got today off, I usually work 6 days per.

Jelly and Swords by SE. Swords and sashimi sword by SQ.
Other solvers tend to freak.:)

Code: Select all
4 . 6|. . 2|. . .
. . .|. . 4|. . .
. 5 .|3 . .|1 . .
-----+-----+-----
. 8 .|1 . .|9 3 .
. . .|. . .|. 2 .
. 2 .|9 . .|8 5 .
-----+-----+-----
. 3 .|8 . .|5 . .
. . .|. . 7|. . .
7 . 1|. . 9|. . .


A very nice puzzle with many fun and standard solving techniques up front. Then ...

This puzzle reduces to two complimentary Jellyfish in <6>.

Performing colors, starting at [r2c8] and using only cells in the Jellyfish, results in a contradiction -- showing that both Jellyfish are invalid.

Ironically, [c2478] was used okay as part of a Jellyfish earlier in the solution.

Code: Select all
# Jellyfish  r2589/c2478 in <6> -and-
# Jellyfish  c2478/r2589 in <6>
 *--------------------------------------------------*
 | 4    17   6    | 5    19   2    | 37   89   38   |
 | 38   17   38   |*67   19   4    | 2   *69   5    |
 | 29   5    29   | 3    67   8    | 1    4    67   |
 |----------------+----------------+----------------|
 | 56   8    47   | 1    2    56   | 9    3    47   |
 | 359 *46   359  | 47   8    35   |*67   2    1    |
 | 1    2    347  | 9    47   36   | 8    5    467  |
 |----------------+----------------+----------------|
 | 26   3    24   | 8    46   1    | 5    7    9    |
 | 58   9    58   |*46   3    7    |*46   1    2    |
 | 7   *46   1    | 2    5    9    |*346 *68   38   |
 *--------------------------------------------------*
daj95376
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Postby wapati » Mon May 28, 2007 8:58 am

This one has finned big fish, although smaller patterns can bypass them.:)

Code: Select all
. . 4 | 9 2 . | . 5 7
. . . | . 4 . | 9 . 1
9 . . | 1 . . | . 4 .
---------------------
3 . 1 | . . . | . . .
6 5 . | . . . | . 1 8
. . . | . . . | 5 . 4
---------------------
. 8 . | . . 1 | . . 5
5 . 2 | . 8 . | . . .
1 7 . | . 5 2 | 4 . .
wapati
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Postby wapati » Tue May 29, 2007 4:43 am

This one has a finned big fish, although smaller patterns can bypass it.:)

Deja vu !

Code: Select all
5 . .|1 2 .|. 9 4
. . 9|. . .|. . 2
. 1 .|. . 9|. . .
-----+-----+-----
8 . .|. 1 .|5 . .
4 . .|8 . 6|. . 3
. . 2|. 5 .|. . 1
-----+-----+-----
. . .|2 . .|. 6 .
1 . .|. . .|2 . .
3 2 .|. 6 4|. . 7
wapati
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Location: Brampton, Ontario, Canada

Postby wapati » Wed May 30, 2007 5:12 am

Oh what a tangled web we weave
When first we practice to deceive. - Sir Walter Scott (Marmion, 1808)

This puzzle is worthy. Looks easy. Perhaps not?

Code: Select all
. . 4|9 . 5|. 1 .
5 . 8|. . .|3 . .
7 . .|. . .|. 5 6
-----+-----+-----
. . .|. 6 .|. 9 .
2 . .|5 . 3|. . 1
. 4 .|. 2 .|. . .
-----+-----+-----
1 2 .|. . .|. . 5
. . 7|. . .|1 . 3
. 6 .|7 . 1|9 . .
wapati
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Location: Brampton, Ontario, Canada

Postby wapati » Fri Jun 01, 2007 4:36 am

SE finds this WAY harder than I do.
(SE does not know fins.)


Code: Select all
. . .|9 . .|5 4 .
. . .|. 1 8|. . .
. 6 .|3 . .|. . .
-----+-----+-----
8 4 .|. . .|. 5 6
9 . .|6 . 5|. . 3
6 5 .|. . .|. 1 8
-----+-----+-----
. . .|. . 9|. 3 .
. . .|2 4 .|. . .
. 7 8|. . 3|. . .
wapati
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Posts: 527
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Location: Brampton, Ontario, Canada

Postby wapati » Fri Jun 01, 2007 4:40 am

Just busy!

Code: Select all
. . 9|. 1 .|. . 2
8 . .|. . .|9 6 .
2 . .|8 . .|3 . 1
-----+-----+-----
. . .|. 4 1|. . .
. 6 .|7 . 8|. 1 .
. . .|9 6 .|. . .
-----+-----+-----
7 . 3|. . 5|. . 9
. 9 2|. . .|. . 7
6 . .|. 7 .|8 . .
wapati
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Location: Brampton, Ontario, Canada

Postby wapati » Sat Jun 02, 2007 9:49 am

There is a swordfish, 5 xys and a few others.
SE rates this only 4.4 but it is quite tangled!:)


Code: Select all
1 7 .|4 . 5|. 3 9
. . .|8 . 1|. . .
. . 4|. . .|2 . .
-----+-----+-----
. . .|5 . 6|. . .
. 2 .|. 3 .|. 6 .
. . 3|. 4 .|5 . .
-----+-----+-----
. 1 .|. . .|. 7 .
7 4 .|. . .|. 9 2
. . 9|. 8 .|4 . .
wapati
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Posts: 527
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Location: Brampton, Ontario, Canada

Postby wapati » Sat Jun 02, 2007 9:59 am

This puzzle has 2 finned jellies, and a sashimi sword.:!:

SQ rates it about 3100 while SE (no fins) sees it as 7.8


Code: Select all
4 . .|. . 3|. . 6
. . .|8 . .|4 . .
. . 6|1 . 4|. 9 .
-----+-----+-----
6 . 4|. . 8|. 7 .
. . .|. . .|. . 3
8 . 3|. . 6|. 1 .
-----+-----+-----
. . 8|9 . 5|. 3 .
. . .|4 . .|1 . .
7 . .|. . 1|. . 5
wapati
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