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Mar 15 VH

 
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Clement



Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania

PostPosted: Mon Mar 14, 2016 11:01 pm    Post subject: Mar 15 VH Reply with quote

Code:

+-------------+-----------+---------+
| 6  147 147  | 17 3    9 | 8  5 2  |
| 5  2   17   | 6  17   8 | 9  4 3  |
| 8  3   9    | 5  2    4 | 17 6 17 |
+-------------+-----------+---------+
| 34 9   1345 | 17 1457 6 | 2  8 15 |
| 7  8   15   | 9  15   2 | 6  3 4  |
| 2  14  6    | 8  145  3 | 15 7 9  |
+-------------+-----------+---------+
| 9  5   78   | 4  6    1 | 3  2 78 |
| 34 6   348  | 2  9    7 | 45 1 58 |
| 1  47  2    | 3  8    5 | 47 9 6  |
+-------------+-----------+---------+

X-Wing on 1 in r25; r14c3 <>1, r46c5 <>1 opens
XY-Wing 45-1 pivoted in r6c5; r5c3 <> 1; stte
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the_lock_man



Joined: 18 Dec 2012
Posts: 40
Location: Portsmarfff, UK

PostPosted: Tue Mar 15, 2016 12:31 pm    Post subject: Reply with quote

There's a one-stepper.

W-Wing 15, pincers R4C9 and R5C5, strong link on 5 in column 3, sets R4C4 <>1 (and R4C5 as well, but that's fairly irrelevant). This STTE.
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dongrave



Joined: 06 Mar 2014
Posts: 568

PostPosted: Tue Mar 15, 2016 8:34 pm    Post subject: Reply with quote

I used Clement's 2 standard VH moves too but then I like to look for chains that solve it one step (especially ones with pincers on both ends).
(1=4)r6c2-r6c5=(4-7)r4c5=r2c5-(7=1)r2c3 => r5c3<>1.
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