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keith
Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
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 Posted: Sat Jan 16, 2010 5:10 pm Post subject: Free Press January 15, 2010 |
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| Code: | Puzzle: FP011510
+-------+-------+-------+
| . . . | 2 . 3 | 7 . . |
| 4 . . | . . . | . . . |
| . . 9 | 8 6 . | . . . |
+-------+-------+-------+
| . . . | . . . | 9 . 3 |
| 7 . 3 | . 9 . | 6 . 4 |
| 8 . 5 | . . . | . . . |
+-------+-------+-------+
| . 2 . | . 8 4 | 1 . . |
| . . . | . . . | . . 8 |
| . . 6 | 3 . 5 | . . . |
+-------+-------+-------+ |
| Quote: | | Needs a long chain at the end. |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sat Jan 16, 2010 10:46 pm Post subject: |
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| I used ERs on 3 and 5, killed a potential DP on 19-17-79 and finished with a six-cell XY-Chain. The purists might not like my last move because one of the cells was a trivalue. |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Sun Jan 17, 2010 2:43 pm Post subject: |
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Marty, spotting the 6-cell DP was great! Congratulations!
I started this puzzle with a finned x-wing 1, a finned x-wing 3 and an ER 5. Then, while looking for xy-wings, I found an chain to complete the task.
(1=4)r8c3 - (4=5)r8c2 - r8c7 = r3c7 - (5=2)r3c9 - (2=1)r3c1; r2c3<>1.
Ted |
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