The SUPERIOR thread

Everything about Sudoku that doesn't fit in one of the other sections

Postby ab » Mon Apr 24, 2006 10:12 pm

I'm worried about your minimum scores in your latest rankings list. I put all the puzzles that score 0 into my solver and, disregarding whether techniques are required on different steps, I come up with these scores:
Code: Select all
 puzzle        score  techniques

#63 (ab)         3      nt,np
#19 (vidarino)   2       hp
#6  (vidarino)   2       hp
#36 (Ruud)       1       np
#22 (Ruud)       2       hp
#4  (ab/Tarek)   1       np
#30 (vidarino)   2       hp
#84 (JPF/Tarek)  2       hp
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Postby tarek » Tue Apr 25, 2006 9:28 am

This thread started nicely, but ended causing a headache:(

My rankings were based on consistancy first, then difficulty second (in an attempt to insure quality of a puzzle)........

Let me take the last puzzle (JPF/Tarek).........

naked doubles were not needed if you spotted the hidden double (in column 7 or box 9)......

Now, the hidden double must have a counterpart (which is a naked triple)...which led to the fact that a the hidden subset can't be constant unless in the context of the superior the counterpart was a naked quad or higher (you can adjust that too)......

The way around this was to say that a hidden subset/naked counterpart are constant.......

In the above puzzle Hidden double/naked triple, but is it ????

Unfortunately not:(

The hidden double in box 9 uncovers a hidden single in the same box, which means that (in theory) somone may see the combination as a hidden triple.......

That is why on consistancy it scored a 0....

another issue.... the puzzle also can be solved using a swordfish or a jellyfish (buit that didn't go into the equation)..... also Ruud's puzzle #100 can be advanced using UR which kills many other techniques used...

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Postby ab » Tue Apr 25, 2006 5:26 pm

Red Ed wrote:Are you going to tell us what's happening with this lot first? Will they be published?
Tarek wrote:I've PM'd Papocom soon after we've reached the 100, he PM'd me back confirming receiving the 1st PM & that he would look into it soon...

That's really it

tarek

we also have 50 inferior puzzles (if you include the two 27 step non-symmetric 17s), which would surely enhance this collection:?:
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Postby JPF » Tue Apr 25, 2006 6:41 pm

ab wrote:we also have 50 inferior puzzles (if you include the two 27 step non-symmetric 17s), which would surely enhance this collection:?:


and we also have 22 low-steppers, from 1 to 8 steps, specially designed for beginners.:)

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Postby tarek » Tue Apr 25, 2006 10:55 pm

ab wrote:we also have 50 inferior puzzles (if you include the two 27 step non-symmetric 17s), which would surely enhance this collection :?

JPF wrote:and we also have 22 low-steppers, from 1 to 8 steps, specially designed for beginners.

Indeed, that thread was mentioned as well...waiting for a reply:D

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Postby tarek » Tue May 02, 2006 12:26 pm

Is there an easy way to compile the 100 puzzles into a .sud libray book file, bear in mind that I do not have the Pappocom software.....

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Postby Pappocom » Tue May 02, 2006 12:31 pm

Just in case tarek's post causes some confusion. A SUD (.sud) file is an individual puzzle in my Sudoku program. A Library Book is a SUDBOOK (.sudbook) file. I think tarek is asking about creating a .sudbook file.

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Postby gsf » Tue May 02, 2006 2:46 pm

Pappocom wrote:Just in case tarek's post causes some confusion. A SUD (.sud) file is an individual puzzle in my Sudoku program. A Library Book is a SUDBOOK (.sudbook) file. I think tarek is asking about creating a .sudbook file.

- Wayne

is there a description of the minimal requirements for .sud and .sudbook?
thanks
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Postby Smart_A1ec » Wed May 03, 2006 2:10 am

nice ones you wrote those yourself?
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Postby Pappocom » Wed May 03, 2006 11:31 am

The SUD format is closed, but the SUDBOOK format is open source. SUDBOOK is explained in (a) the Help file for my Sudoku program, under "Creating Library Books", and (b) the "template.sudbook" file which can be found in the working directory for Sudoku - that is, the directory where you have my Sudoku program installed.

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re: sudbook

Postby Pat » Fri May 05, 2006 6:26 am

tarek wrote:Is there an easy way to compile the 100 puzzles into a sudbook file

yes, sure, here's an example - one puzzle per row, and <serial> will be the puzzle-number (must be in range 1-200)

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<sudoku-book>
<user>0</user>
<last>000000000000</last>
<checked>000000000000</checked>
<xtra>0</xtra>
<puzzle-type>0</puzzle-type>
<cells-in-row>9</cells-in-row>
<boxes-across>3</boxes-across>
<boxes-down>3</boxes-down>
<featuredGrade>x</featuredGrade>
<puzzle> <serial>1</serial> <grade>x</grade> <solvers>0000</solvers> <question> ...5......9..68.7...1...3...7..2...6.5.....8.8...4..9...9...1...8.67..3......2... </question> </puzzle>
<puzzle> <serial>2</serial> <grade>x</grade> <solvers>0000</solvers> <question> ...5......9..68.7...1...3...7..2...6.5.....8.8...46.....9...1...8.67..3......2... </question> </puzzle>
<puzzle> <serial>3</serial> <grade>x</grade> <solvers>0000</solvers> <question> ...5......9..68.7...1...3...7..2...6.5.....8.8...46.9...9...1...8.67.........2... </question> </puzzle>
<puzzle> <serial>4</serial> <grade>x</grade> <solvers>0000</solvers> <question> ..85......9..68.7...1...3...7..2...6.5.....8.....4..9...9...1.....67..3......28.. </question> </puzzle>
<puzzle> <serial>5</serial> <grade>x</grade> <solvers>0000</solvers> <question> ..85......9..68.7...1...3...7..2...6.5.....8.....4..9...9...1...8.67..3......2... </question> </puzzle>
<puzzle> <serial>6</serial> <grade>x</grade> <solvers>0000</solvers> <question> ..85......9..68.7...1...3...7..2...6.5.....8.....46.....9...1...8.67..3......2... </question> </puzzle>
<puzzle> <serial>7</serial> <grade>x</grade> <solvers>0000</solvers> <question> ..85......9..68.7...1...3...7..2...6.5.....8.....46.9...9...1.....67.........28.. </question> </puzzle>
<puzzle> <serial>8</serial> <grade>x</grade> <solvers>0000</solvers> <question> ..85......9..68.7...1...3...7..2...6.5.....8.....46.9...9...1...8.67.........2... </question> </puzzle>
<puzzle> <serial>9</serial> <grade>x</grade> <solvers>0000</solvers> <question> ..85......9..68.7...1...3...7..2...6.5.....8.8...46.....9...1.....67..3......28.. </question> </puzzle>
</sudoku-book>


i used Excel, you'll probably have an easier way.
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Postby tarek » Fri May 05, 2006 7:25 pm

Thanx Pat,

that was REALLY helpful.

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Postby Ocean » Tue May 09, 2006 7:55 pm

I'm curious about how this would score/rate. It has only 20 clues (minimal), and nice symmetry. I count two hidden triples (same step though), and later an X-wing. There is also a hidden double, and possibly two naked triples. (But, as usual, I might miss the easier path).

Code: Select all
 . . . | . . . | . . .
 . 1 . | . . . | . 2 .
 . . 3 | 4 . 5 | 6 . .
-------+-------+------
 . . 4 | . 5 . | 3 . .
 . . . | 2 . 7 | . . . 
 . . 6 | . 8 . | 4 . .
-------+-------+------
 . . 5 | 6 . 3 | 1 . .
 . 7 . | . . . | . 9 .
 . . . | . . . | . . .
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Postby ab » Tue May 09, 2006 10:53 pm

tarek wrote:Anyone interested in another thread, with more difficult puzzles:?:

tarek


My generator can cope with xy wings and quads now:)

Ocean wrote:I'm curious about how this would score/rate.

That one's a beaut, Ocean! I'm not going to try and second guess how Tarek will score it though.
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Postby tarek » Tue May 09, 2006 11:23 pm

Ocean wrote:I'm curious about how this would score/rate.


It's a great puzzle that is a superior, however it displays little consistancy........... The hidden double & naked quads can be achived with triple & quads....

The only constant feature is the x-wing...therefore it scores a 3


ab wrote:
tarek wrote:Anyone interested in another thread, with more difficult puzzles:?:
My generator can cope with xy wings and quads now:)


I was thinking of something which is tougher actually, fish & quads however they should be consistant even against the mights of unique rectangles,xy wings & colouring/finned xwing.....

I may be over my head with this but my feeling is that we've done enough with this superior thread......

I probably need to make some final replacements especially to #84. Also several of Ocean's puzzle are symmetrically the same & may need just a minor change to an equivelant symmetrical form...........

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