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keith
Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
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 Posted: Fri Nov 27, 2009 9:31 pm Post subject: One from Vanhegan |
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Since the Freep puzzle was such a walk in the park, try this one from Vanhegan.
(It is not very difficult, but you'll need a full tank of gas!)
| Code: | Puzzle: VanH3-101998
+-------+-------+-------+
| 1 . 5 | . . . | 2 . 9 |
| . 8 . | 2 5 9 | . 3 . |
| . 2 . | . . . | . 4 . |
+-------+-------+-------+
| . . . | 5 7 1 | . . . |
| . . 1 | . . . | 7 . . |
| . . . | 6 3 2 | . . . |
+-------+-------+-------+
| . 1 . | . . . | . 5 . |
| . 3 . | 4 2 8 | . 1 . |
| 2 . 4 | . . . | 8 . 3 |
+-------+-------+-------+ |
Keith |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Fri Nov 27, 2009 11:16 pm Post subject: |
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I used:
| Quote: | | Two XYZ-Wings and multi-coloring on 7 |
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keith
Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
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| Posted: Fri Nov 27, 2009 11:54 pm Post subject: |
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Marty,
I found the "basics" on this one quite tough!. Then it came down to a UR and a swordfish.
Keith |
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Fri Nov 27, 2009 11:55 pm Post subject: |
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two steps for me: | Quote: | Swordfish 6
xy-wing 498 |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sat Nov 28, 2009 12:12 am Post subject: |
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| Quote: | | Then it came down to a UR and a swordfish. |
I generally don't look for swordfish, probably because I don't know how to search efficiently. Thus, it boils down to too much effort for too little return. |
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Earl
Joined: 30 May 2007
Posts: 677
Location: Victoria, KS
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| Posted: Sat Nov 28, 2009 12:53 am Post subject: Vanhyegan |
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After basics, just a (689) xyz-wing.
Earl |
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enxio27
Joined: 18 Jun 2012
Posts: 21
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| Posted: Mon Aug 22, 2016 4:05 pm Post subject: |
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| Keith, any idea of a date on this puzzle? Was it 27 November 2009, or an earlier date? |
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dongrave
Joined: 06 Mar 2014
Posts: 568
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| Posted: Fri Aug 26, 2016 12:44 pm Post subject: |
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I had the following grid after basics:
| Code: |
+-----------+-------------+-------------+
| 1 67 5 | 378 4 367 | 2 78 9 |
| 4 8 67 | 2 5 9 | 16 3 17 |
| 9 2 3 | 178 18 67 | 56 4 578 |
+-----------+-------------+-------------+
| 68 469 2 | 5 7 1 | 3 689 468 |
| 3 56 1 | 89 89 4 | 7 2 56 |
| 7 45 89 | 6 3 2 | 15 89 145 |
+-----------+-------------+-------------+
| 68 1 89 | 37 69 37 | 4 5 2 |
| 5 3 67 | 4 2 8 | 9 1 67 |
| 2 679 4 | 19 169 5 | 8 67 3 |
+-----------+-------------+-------------+
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And then I used the same XYZ Wing as Earl which solves it. 689 XYZ Wing with pivot at r4c8 so r4c9<>8. |
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Clement
Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania
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| Posted: Fri Aug 26, 2016 11:27 pm Post subject: One from Vanhegan |
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| Code: |
+-----------+-------------+------------+
| 1 f67 5 | 378 4 367 | 2 78 9 |
| 4 8 e67 | 2 5 9 | d16 3 17 |
| 9 2 3 | 178 18 67 | c56 4 b578 |
+-----------+-------------+------------+
| h6-8 g469 2 | 5 7 1 | 3 689 a468 |
| 3 g56 1 | 89 89 4 | 7 2 56 |
| 7 45 89 | 6 3 2 | 15 89 145 |
+-----------+-------------+------------+
| 68 1 89 | 37 69 37 | 4 5 2 |
| 5 3 67 | 4 2 8 | 9 1 67 |
| 2 679 4 | 19 169 5 | 8 67 3 |
+-----------+-------------+------------+
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(8)r4c9 = (8-5)r3c9 = (5-6)r3c7 = r2c7 - r2c3 = r1c2 - r45c2 = (6)r4c1 => -8 r4c1; stte |
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