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kuskey
Joined: 10 Dec 2008
Posts: 141
Location: Pembroke, NH
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 Posted: Sun Sep 05, 2010 4:59 am Post subject: Sep 5 VH |
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| A 147 xyz-wing (col 1) on 1 eliminates 1 at r7c1 solving the puzzle. |
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Ema Nymton
Joined: 17 Apr 2009
Posts: 89
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| Posted: Sun Sep 05, 2010 11:26 am Post subject: |
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An interesting twist.
| Code: |
+-------------+-----------+-------------+
| 79A 79 8 | 4 3 2 | 6 5 1 |
| 3 1 4 | 7 6 5 | 9 28 28 |
| 2 6 5 | 89 19 18 | 4 3 7 |
+-------------+-----------+-------------+
| 6 3 27 | 1 57 4 | 258 28 9 |
| 14 5 12 | 6 8 9 | 23 7 234 |
| 8 47 9 | 2 57 3 | 15 16 46 |
+-------------+-----------+-------------+
| 19B 289 6 | 3 129 7 | 128 4 5 |
| 147*2478 17C| 5 12 6 | 1238 9 238 |
| 5 289 3 | 89 4 18 | 7 16 268 |
+-------------+-----------+-------------+
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The alignment of ABC removes the '7' from r8c1, making r1c1 '7'.
Ema Nymton
~@:o)
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sun Sep 05, 2010 3:30 pm Post subject: |
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| Quote: | | The alignment of ABC removes the '7' from r8c1, making r1c1 '7'. |
Ema,
That's correct. It's known as an XY-Wing. I'd refer to it as a 197 XY-Wing, pivoted in r7c1. |
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