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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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 Posted: Tue May 29, 2012 5:17 am Post subject: Vanhegan Extreme May 29, 2012 |
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| Code: |
*-----------*
|3.9|6.4|1.2|
|..7|.1.|3..|
|...|938|...|
|---+---+---|
|9..|.5.|..8|
|873|...|541|
|2..|.8.|..7|
|---+---+---|
|...|163|...|
|..4|.2.|7..|
|5.2|7.9|8.3|
*-----------*
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Clement
Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania
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| Posted: Tue May 29, 2012 8:04 am Post subject: Vanhagen Extreme May 29, 2012 |
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After the Basics | Code: |
+-------------+--------+------------+
| 3 58 9 | 6 7 4 | 1 58 2 |
| 46 68 7 | 5 1 2 | 3 -689 469 |
| 146 2 156 | 9 3 8 | 46 7 45-6 |
+-------------+--------+------------+
| 9 146 16 | 34 5 7 | 26 236 8 |
| 8 7 3 | 2 9 6 | 5 4 1 |
| 2 456 56 | 34 8 1 | 9 36 7 |
+-------------+--------+------------+
| 7 9 8 | 1 6 3 | 24 25 45 |
| 16 3 4 | 8 2 5 | 7 1-69 69 |
| 5 16 2 | 7 4 9 | 8 16 3 |
+-------------+--------+------------+
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XYZ-Wing 469 hinged in r2c9; r3c9<>6 and Type 4 UR 69 in r28c89; r28c8<>6 opes a Skyscraper on 6 from r29c2; r8c9<>6 which solves it. |
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Tue May 29, 2012 11:02 am Post subject: |
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| Code: |
*--------------------------------------------------*
| 3 58 9 | 6 7 4 | 1 58 2 |
|a46 8-6 7 | 5 1 2 | 3 689 a469 |
| 146 2 156 | 9 3 8 | 46 7 456 |
|----------------+----------------+----------------|
| 9 146 16 | 34 5 7 | 26 236 8 |
| 8 7 3 | 2 9 6 | 5 4 1 |
| 2 456 56 | 34 8 1 | 9 36 7 |
|----------------+----------------+----------------|
| 7 9 8 | 1 6 3 | 24 25 45 |
|b16 3 4 | 8 2 5 | 7 169 b69 |
| 5 c16 2 | 7 4 9 | 8 16 3 |
*--------------------------------------------------*
xy-wing
(46=9)r2c19-(9=16)r8c19-(1=6)r9c2 => r2c2<>6; stte
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Tue May 29, 2012 2:07 pm Post subject: |
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Dan, my initial solution was the same as yours except I did not see a xy-wing, I saw an anp(46=9)r2c19. In any case it is good to see others using this technique. 
On my second pass, I looked for another anp() and found this solution that works but is not as clean as the anp(46=9)r2c19.
anp(16=*9)r89c8-(9=6=1)r8c91-r3c1=(1-5)r3c3=r3c9-(5=8)r1c8-(89*=6)r2c8; r46c8<>6
Ted |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Tue May 29, 2012 10:52 pm Post subject: |
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XYZ-Wing (456); r2c9<>4
Skyscraper, c19; r2c2<>6 |
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