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 15x15 
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Posted on: Mon Jan 21, 2013 9:30 pm




Posts: 20
Location: Sinnai, Sardegna, Italia
Joined: Sun Apr 15, 2012 12:13 am
Post 15x15
... and what about a 15 x 15 puzzle at week?
We met the 15 x 15 puzzle in the books, we can start with a easy 15 x 15.
And I'd also like to play with a twin puzzle 10x10, easy or medium, once a week.
Bye bye and thank you Patrick!


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Posted on: Mon Jan 21, 2013 9:33 pm




Posts: 2215
Joined: Thu May 12, 2011 11:58 pm
Post Re: 15x15
bertoldo wrote:
... and what about a 15 x 15 puzzle at week?
We met the 15 x 15 puzzle in the books, we can start with a easy 15 x 15.
And I'd also like to play with a twin puzzle 10x10, easy or medium, once a week.
Bye bye and thank you Patrick!

Not a bad idea, a weekly 15x15 for subscribers :-)

I recently (last week (!)) worked a bit on the software for Very Large puzzles (i.e. 12x12 and up),
and made some improvements [scared]


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Posted on: Sat Jan 26, 2013 6:15 pm




Posts: 2215
Joined: Thu May 12, 2011 11:58 pm
Post Re: 15x15
pnm wrote:
I recently (last week (!)) worked a bit on the software for Very Large puzzles (i.e. 12x12 and up),
and made some improvements [scared]

Here's a sample, to whet your appetite :-)

Image


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Posted on: Sun Jan 27, 2013 12:38 am




Posts: 694
Joined: Fri May 13, 2011 6:51 pm
Post Re: 15x15
pnm wrote:
pnm wrote:
I recently (last week (!)) worked a bit on the software for Very Large puzzles (i.e. 12x12 and up),
and made some improvements [scared]

Here's a sample, to whet your appetite :-)



Interesting puzzle, solution unique, it takes some time what is logical for a large puzzle, more complex in my opinion than the two previous (both 15x15's in the "102 large puzzles" books) probably due to the 4 products in cages of 5-cells.


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Posted on: Sun Jan 27, 2013 11:26 am




Posts: 66
Joined: Fri May 13, 2011 9:37 am
Post Re: 15x15
I agree. This puzzles is solvable with only logic, so no trying is needed.
My solver needs 48,4 seconds. The former two take 4,8 and 6 seconds. So is is really more challenging & fun!
You've done well!


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Posted on: Wed Jan 30, 2013 3:41 pm




Posts: 40
Joined: Tue Apr 24, 2012 7:47 pm
Post Re: 15x15
I was hoping that non-subscribers would also have access to 15x15's so that everyone could "share the wealth", but oh well. [cool] I just solved the sample 15x15; following are my answers for each row from left to right:

Row 1 > 6 12 4 8 11 1 15 3 13 14 2 9 5 7 10

Row 2 > 14 9 5 15 7 12 6 10 8 2 13 1 11 3 4

Row 3 > 7 3 8 10 5 2 9 4 15 1 12 14 6 13 11

Row 4 > 15 1 11 2 10 3 7 13 5 4 6 12 14 9 8

Row 5 > 1 8 13 6 12 11 3 2 7 10 5 15 4 14 9

Row 6 > 5 13 6 11 2 10 14 15 3 9 7 8 12 4 1

Row 7 > 10 4 2 5 14 8 13 7 9 12 11 3 1 6 15

Row 8 > 9 2 12 4 3 7 10 11 6 15 1 13 8 5 14

Row 9 > 3 15 7 14 8 5 1 9 12 13 4 2 10 11 6

Row 10 > 13 10 15 1 4 14 2 8 11 5 9 6 3 12 7

Row 11 > 4 6 1 13 9 15 5 14 10 8 3 11 7 2 12

Row 12 > 2 7 10 12 1 6 11 5 14 3 15 4 9 8 13

Row 13 > 8 14 9 7 13 4 12 6 2 11 10 5 15 1 3

Row 14 > 12 11 3 9 6 13 8 1 4 7 14 10 2 15 5

Row 15 > 11 5 14 3 15 9 4 12 1 6 8 7 13 10 2

I was originally going to print-screen my solution, but it's not an http file. I print-screened it in Paint, shrunk it down in Word,
and solved it after resending it to Paint.


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