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May 15 VH

 
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Clement



Joined: 24 Apr 2006
Posts: 663
Location: Dar es Salaam Tanzania

PostPosted: Mon May 14, 2012 10:46 pm    Post subject: May 15 VH Reply with quote

After the Basics
Code:

+-----------+---------+----------+
| 2-48 24 7  | 3 6  9  | 48 5  1  |
| 48  6  3  | 1 7  5  | 48 2  9  |
| 5   1  9  | 2 8  4  | 7  6  3  |
+-----------+---------+----------+
| 7   8  6  | 4 5  13 | 13 9  2  |
| A13  5  2  | 8 9  7  | 6  B13 4  |
| 9   34 14 | 6 13 2  | 5  7  8  |
+-----------+---------+----------+
| 46  9  45 | 7 2  E13 | D13 8  56 |
| 1-36 7  15 | 9 F13 8  | 2  4  56 |
| 123 23 8  | 5 4  6  | 9  C13 7  |
+-----------+---------+----------+
XYZ-Wing 123 pivoted inr9c1; r8c1<>3 solves it.
The Romote Pairs 13, A=B=C=D=E=F do the same eliminaton.
Also the Type 1 UR 48 in Grid r12c17; r1c1<>48
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George Woods



Joined: 28 Mar 2006
Posts: 232
Location: Dorset UK

PostPosted: Tue May 15, 2012 10:09 am    Post subject: almost identical solution Reply with quote

There is an ER solution. The Strong link on 3 in row 5 means that r9c8 cannot be 3 'cos that would imply no room for a 3 in box 7. This is highly related to the solutions above. and indeed if r9c8 were 3 than another intrpreation following the 3s in row 5 would put two 3s in row 9!
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Marty R.



Joined: 12 Feb 2006
Posts: 5157
Location: Rochester, NY, USA

PostPosted: Tue May 15, 2012 2:30 pm    Post subject: Reply with quote

I used the XYZ-Wing, but the same elimination can also be made via Finned X-Wing.
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