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sudokuEd
Grandmaster

Joined: 19 Jun 2006
Posts: 257
Location: Sydney Australia

Posted: Wed Nov 22, 2006 10:41 am    Post subject: X-treme 22 Nov ALSxz!!

Found one emm! So excited - can hardly typex.

After very slow progress, managed to get today's X-treme to this spot - then completely stuck. Think I've found an ALSxz elimination which solves the puzzle. Please don't let me be tricked again .

A =[r4c147], B=[r4c9, r5c8, r6c9], X=1, Z=9 =>[r4c8]<>9

 Code: .------------.------------.------------. | 3   9   4  | 6   1   2  | 57  57  8  | | 6   8   7  | 5   4   3  | 19  2   19 | | 5   1   2  | 79  8   79 | 4   6   3  | :------------+------------+------------: | 78  4   5  | 79  23  6  | 18  39  127| | 2   3   1  | 8   5   79 | 6   79  4  | | 78  6   9  | 1   23  4  | 58  35  27 | :------------+------------+------------: | 1   2   3  | 4   6   5  | 79  8   79 | | 4   7   6  | 2   9   8  | 3   1   5  | | 9   5   8  | 3   7   1  | 2   4   6  | '------------'------------'------------'
emm
Hooked

Joined: 11 Oct 2006
Posts: 34

 Posted: Wed Nov 22, 2006 11:31 am    Post subject: Eureka, Ed! That looks like a bona fide ALS to me. There is another way of getting past that stage though ... she says mysteriously...
emm
Hooked

Joined: 11 Oct 2006
Posts: 34

Posted: Fri Nov 24, 2006 8:21 pm    Post subject: X-treme 24 Nov

It's an infestation!

 Code: .------------.------------.------------. | 2   4   1  | 58  578 57 | 9   3   6  | | 9   5   6  | 3   2   4  | 8   1   7  | | 7   3   8  | 1   6   9  | 5   4   2  | :------------+------------+------------: | 3   8   5  | 7   1   2  | 4   6   9  | | 6   2   9  | 58  4   3  | 7   58  1  | | 4   1   7  | 9   58  6  | 3   2   58 | :------------+------------+------------: | 5   6   3  | 2   9   78 | 1   78  4  | | 1   7   4  | 6   3   58 | 2   9   58 | | 8   9   2  | 4   57  1  | 6   57  3  | '------------'------------'------------'
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