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HATMAN
PostPosted: Thu Aug 20, 2009 5:55 pm 
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Joined: Wed Apr 30, 2008 9:45 pm
Posts: 694
Location: Saudi Arabia
Second attempt: in this one there are givens in the overlaps, but it is pretty minimal (26 givens). Can anyone beat it?

Only theoretically human solvable - serious swimming involved. My next variant will be fish free.

Image


Last edited by HATMAN on Fri Sep 11, 2009 9:46 pm, edited 2 times in total.

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udosuk
PostPosted: Sun Aug 23, 2009 4:11 pm 
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Joined: Wed Apr 23, 2008 5:29 am
Posts: 302
Location: Sydney, Australia
Umm, strangely I found 2 solutions for this puzzle (via brute force), so apparently you need 27 givens instead of 26 to make it valid. :scratch:

The solutions I found:
Code:
TL
+-------+---------+---------+
| 5 6 4 | 8  1  9 | 23 7 23 |
| 8 9 1 | 7 23 23 |  4 5  6 |
| 7 2 3 | 5  4  6 |  9 8  1 |
+-------+---------+---------+
| 9 4 8 | 6 23 23 |  7 1  5 |
| 6 1 7 | 9  8  5 | 23 4 23 |
| 3 5 2 | 1  7  4 |  6 9  8 |
+-------+---------+---------+
| 2 8 6 | 4  5  7 |  1 3  9 |
| 1 7 9 | 3  6  8 |  5 2  4 |
| 4 3 5 | 2  9  1 |  8 6  7 |
+-------+---------+---------+
TR
236819475
495237186
871456932
168392547
947165328
523748619
684523791
719684253
352971864
C
469815237
713926845
852437196
186743529
234159678
975268314
348672951
591384762
627591483
BL
643189752
159723486
782645913
814396275
375218649
926457138
497532861
231864597
568971324
BR
831495726
295176843
476283195
148362579
769851432
523947681
917634258
684529317
352718964

Hope you can resolve this before the Ashes series ends. :rambo:

Edited: to the late followers, my reply above was based on an earlier version posted by HATMAN, which was invalid. HATMAN replaced it with a new version later. If anyone is interested to see what the initial invalid version was like, just reply below or PM me. I'll repost that version if necessary.

_________________
ADYFNC HJPLI BVSM GgK Oa m


Last edited by udosuk on Sat Sep 12, 2009 5:26 am, edited 1 time in total.

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HATMAN
PostPosted: Thu Aug 27, 2009 1:02 pm 
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Joined: Wed Apr 30, 2008 9:45 pm
Posts: 694
Location: Saudi Arabia
Apologies I'll work through it over the weekend and repost. I would hope to maintain 26 by moving the top left clues. I found that is you have a block of twelve givens in one corner you can place four more givens to make it unique and simply solvable. It does take a bit of trial and error to find the best positions.
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enxio27
PostPosted: Sun Jun 20, 2010 1:40 am 
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Joined: Thu Apr 24, 2008 4:27 pm
Posts: 791
Has anyone got this puzzle in code format, before I go to the trouble?
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