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keith
Joined: 19 Sep 2005 Posts: 3355 Location: near Detroit, Michigan, USA
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Posted: Tue Oct 13, 2009 2:21 am Post subject: Today's BBsh: Are you remotely interested? |
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BBsh = Brain Basher's super hard.
Code: | Puzzle: BB101209sh
+-------+-------+-------+
| . . . | 9 . 6 | . . . |
| . . 6 | . 4 . | 9 . . |
| . 8 . | 1 . 2 | . 5 . |
+-------+-------+-------+
| 1 . 3 | . . . | 5 . 9 |
| . 5 . | . . . | . 2 . |
| 9 . 2 | . . . | 7 . 4 |
+-------+-------+-------+
| . 2 . | 8 . 1 | . 9 . |
| . . 5 | . 9 . | 3 . . |
| . . . | 4 . 3 | . . . |
+-------+-------+-------+ | Keith |
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Earl
Joined: 30 May 2007 Posts: 677 Location: Victoria, KS
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Posted: Tue Oct 13, 2009 3:02 am Post subject: Brain BAsh |
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Did not see a one-step solution. So I took two.
A Solution: x-wing (4), 147 xy-wing.
Earl |
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keith
Joined: 19 Sep 2005 Posts: 3355 Location: near Detroit, Michigan, USA
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Posted: Tue Oct 13, 2009 3:24 am Post subject: |
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Earl, after your X-wing, there is a fairly useless swordfish. And then, your XY-wing to solve it.
However, to start:
Code: | +----------------------+----------------------+----------------------+
| 23457 1347 147 | 9 3578 6 | 1248 13478 12378 |
| 2357 137 6 | 357 4 578 | 9 1378 12378 |
| 347 8 479 | 1 37 2 | 46 5 367 |
+----------------------+----------------------+----------------------+
| 1 467 3 | 267 2678 478 | 5 68 9 |
| 4678 5 478 | 367 13678 4789 | 168 2 1368 |
| 9 6 2 | 356 13568 58 | 7 1368 4 |
+----------------------+----------------------+----------------------+
| 3467 2 47 | 8 567 1 | 46 9 567 |
| 4678 1467 5 | 267 9 7 | 3 14678 12678 |
| 678 1679 1789 | 4 2567 3 | 1268 1678 125678 |
+----------------------+----------------------+----------------------+ | Solving <3> in R7C1, leaves us with a remote pair <47>, solving R1C3 as <1>, and the puzzle is toast!
(Look at the cells that are <47>, and those that are <46>)
Keith |
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arkietech
Joined: 31 Jul 2008 Posts: 1834 Location: Northwest Arkansas USA
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Posted: Tue Oct 13, 2009 6:36 am Post subject: |
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There is a nice 74 w-wing that does it in one step
Code: | *-----------------------------------------------------------------------------*
| 5 134 14-7 | 9 378 6 | 28 1347 12378 |
| 2 13 6 | 357 4 58 | 9 137 1378 |
|*47 8 9 | 1 37 2 | 46 5 367 |
|-------------------------+-------------------------+-------------------------|
| 1 7 3 | 26 268 4 | 5 68 9 |
|#48 5 #48 | 37 367 9 | 1 2 36 |
| 9 6 2 | 35 1 58 | 7 38 4 |
|-------------------------+-------------------------+-------------------------|
| 3 2 *47 | 8 56 1 | 46 9 567 |
| 468 14 5 | 26 9 7 | 3 146 1268 |
| 68-7 9 178 | 4 256 3 | 28 167 125678 |
*-----------------------------------------------------------------------------*
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tlanglet
Joined: 17 Oct 2007 Posts: 2468 Location: Northern California Foothills
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Posted: Tue Oct 13, 2009 2:13 pm Post subject: |
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I used a one step xy-wing 46-7 with vertex 46 in r7c7, pincer 47 in r7c3 and pincer 67 is a pseudocell in row3 to delete the 7 in r1c3 & r9c1.
Ted |
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storm_norm
Joined: 18 Oct 2007 Posts: 1741
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Posted: Wed Oct 14, 2009 12:04 am Post subject: |
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just to put a grin on Asellus' face
Code: | +---------------+-----------------+--------------------+
| 5 134 147 | 9 (378) 6 | 2-8 1347 12378 |
| 2 13 6 | 357 4 58 | 9 137 1378 |
| 47 8 9 | 1 (37) 2 | 46 5 367 |
+---------------+-----------------+--------------------+
| 1 7 3 | (26) 268 4 | 5 68 9 |
| 48 5 48 | 367 (367) 9 | 1 2 36 |
| 9 6 2 | 35 1 58 | 7 38 4 |
+---------------+-----------------+--------------------+
| 3 2 47 | 8 56 1 | 46 9 567 |
| 468 14 5 | 6(2) 9 7 | 3 146 1268 |
| 678 9 178 | 4 56(2) 3 | (28) 167 125678 |
+---------------+-----------------+--------------------+ |
ALS[(8)r1c5 = (6)r5c5]r135c5 - (6=2)r4c4 - (2)r8c4 = (2)r9c5 - (2=8)r9c7; r1c7 <> 8 |
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