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Tarek's Pearly6000
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tarek

Joined: 31 Dec 2005
Posts: 211
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Location: London, UK

Items
PostPosted: Wed Sep 17, 2008 6:45 pm    Post subject: Reply with quote

2955 puzzles have been added ...

The previous pearly1800 & pearly3045 have been subsumed by the the pearly6000 ....

the old puzzles appear in this last list with the same old puzzle order.

some stats
Code:
n=6000 Clues  q1        q2        Sx9      Sxt
Mean   21.87  58422.18  75483.24  1377.04  696.74
Median 22     52882.5   95090     1180     622.5
Mode   22     95014     95083     966      581
SD     0.50   34081.60  35302.60  505.42   245.56
Max    23     99072     99421     5292     2201
Min    21     9000      323       900      236


tarek
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tarek

Joined: 31 Dec 2005
Posts: 211
:
Location: London, UK

Items
PostPosted: Fri Nov 28, 2008 4:04 pm    Post subject: Reply with quote

I previously wrote:
the previous pearly1800 & pearly3045 have ben subsumed by the pearly 6000

the Pearly6000 have been divided into 10 posts as I couldn't fit them all into 1 post as follows (on the programmers forum):
#Puzzles 0001-0700
#Puzzles 0701-1400
#Puzzles 1401-1800
#Puzzles 1801-2400
#Puzzles 2401-3045
#Puzzles 3046-3600
#Puzzles 3601-4200
#Puzzles 4201-4800
#Puzzles 4801-5400
#Puzzles 5401-6000

For anyone interested, you can download the entire 6000 puzzles in 1 text file by following this link http://www.mediafire.com/?3dozdgygmn2
I will be posting some statistical info about the collection withing the next 2 weeks.


I just finished rating the entire collection with Sudoku Explainer 1.2.1. The collections mini stats are as follows:

Code:
n=6000   ER     EP     ED    Q1      Q2      Sxt    Sx9      Clues
Mean     10.19  10.18  9.52  58422   75483   696.74 1377.04  21.87
Median   10.15  10.1   9.5   52882.5 95090   622.5  1180     22
Mode     9.9    9.9    9.4   95014   95083   581    966      22
SD       0.38   0.39   0.56  34081   35303   245.56 505.42   0.50
Min      9.1    9.1    4.4   9000    323     236    900      21
Max      11.9   11.9   11.5  99072   99421   2201   5292     23

The above stats can be downloaded through the following link: Pearly6000-Stats
The entire collection's info can also be downloaded through the following link: Pearly6000-Info. The 1st line of the file should make it possible to use in gsf's sudoku.

tarek
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jeff88

Joined: 26 May 2010
Posts: 6
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PostPosted: Tue Jan 04, 2011 12:53 am    Post subject: Reply with quote

I've been writing a solver to do the pearly 6k. I've implemented all the easy ones, coloring, multicoloring, XY-Chains and I still can't solve the puzzles.
Is there a list of necessary techniques for this puzzle set I can reference?
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Pat

Joined: 06 Sep 2006
Posts: 243
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PostPosted: Tue Jan 04, 2011 8:28 am    Post subject: Reply with quote

jeff88 wrote:
I've implemented all the easy ones, coloring, multicoloring, XY-Chains
and I still can't solve the puzzles.

Is there a list of necessary techniques for this puzzle set I can reference?

these are extra-tough,
you may need "forcing chains" and even "forcing nets"
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tarek

Joined: 31 Dec 2005
Posts: 211
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Location: London, UK

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PostPosted: Sat Jan 08, 2011 9:31 pm    Post subject: Reply with quote

The minimum ER is 9.1 & median ER is >10. These puzzles will defeat any puzzle that does not implement extended complex chains.

tarek
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