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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Mon Oct 27, 2008 7:44 am Post subject: No XY/XYZ-Wings: Set A Puzzle 4 |
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Same Rules! You decide the difficulty.
| Code: | +-----------------------+
| 5 . . | . . . | . 8 1 |
| . . 9 | . 8 . | . . . |
| . 1 3 | 6 . . | . . . |
|-------+-------+-------|
| . . 2 | . . 6 | . . 3 |
| . 9 . | . 2 . | 6 1 . |
| . . . | 8 . . | . . 2 |
|-------+-------+-------|
| . . . | . 6 . | 5 . 8 |
| 1 . . | . 9 . | . 2 . |
| 2 . . | 7 . 8 | 1 . 4 |
+-----------------------+
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Mon Oct 27, 2008 12:15 pm Post subject: |
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An x-wing kite skyscraper got me here
| Code: |
*--------------------------------------------------*
| 5 6 47 | 23 347 9 | 234 8 1 |
| 47 2 9 | 135 8 137 | 34 6 57 |
| 8 1 3 | 6 47 25 | 24 57 9 |
|----------------+----------------+----------------|
| 47 457 2 | 9 1 6 | 8 45 3 |
| 3 9 8 | 45 2 47 | 6 1 57 |
| 6 45 1 | 8 37 357 | 9 457 2 |
|----------------+----------------+----------------|
| 9 47 47 | 12 6 12 | 5 3 8 |
| 1 8 5 | 34 9 34 | 7 2 6 |
| 2 3 6 | 7 5 8 | 1 9 4 |
*--------------------------------------------------*
r7c4=1=r2c4=5=r2c9=7=r3c8=5=r7c6=2=r7c6=1=r7c4 => r7c4=1 |
Don't know what to call it other than nice  |
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nataraj
Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria
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| Posted: Mon Oct 27, 2008 12:27 pm Post subject: |
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percieved difficulty: vh++
easy start: x-wing (5) cols 4,9
skyscraper (7) cols 1,9: r4c8<>7
and coloring (7) box3,r5: r3c6<>7
not so easy: UR (45) with strong links 4 and 5: r4c2<>4, r6c8<>5
not easy at all:
"useless" w-wing (7)r4c2=r2c9 (via sl (5) col 8), transported in one of many possible ways (e.g. a,b... and u,v) to remove 7 from r6c5 (and r2c6).
| Code: |
+--------------------------+--------------------------+--------------------------+
| 5 6 47c | 23 347d 9 | 234 8 1 |
| 47b 2 9 | 135 8 13-7 | 34 6 57# |
| 8 1 3 | 6 47v 25 | 24 57#u 9 |
+--------------------------+--------------------------+--------------------------+
| 47a 57# 2 | 9 1 6 | 8 45# 3 |
| 3 9 8 | 45 2 47 | 6 1 57 |
| 6 45 1 | 8 3-7 357 | 9 47 2 |
+--------------------------+--------------------------+--------------------------+
| 9 47 47 | 12 6 12 | 5 3 8 |
| 1 8 5 | 34 9 34 | 7 2 6 |
| 2 3 6 | 7 5 8 | 1 9 4 |
+--------------------------+--------------------------+--------------------------+
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(I just hope I did not accidentally use an xy-wing this time)
This leads to a BUG+1 (r2c4=3). |
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ravel
Joined: 21 Apr 2006
Posts: 536
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| Posted: Mon Oct 27, 2008 3:07 pm Post subject: |
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| nataraj wrote: | | "useless" w-wing ... transported ... |
The same can be done with the UR 45 | Code: |
*-----------------------------------------------*
| 5 6 *47 | 23 *347 9 | 234 8 1 |
| 47 2 9 | 135 8 13-7 | 34 6 *57 |
| 8 1 3 | 6 47 25-7 | 24 @57 9 |
|--------------+----------------+---------------|
| 47 #457 2 | 9 1 6 | 8 #457 3 |
| 3 9 8 | 45 2 *47 | 6 1 *57 |
| 6 #457 1 | 8 3-7 357 | 9 #457 2 |
|--------------+----------------+---------------|
| 9 @47 *47 | 12 6 12 | 5 3 8 |
| 1 8 5 | 34 9 34 | 7 2 6 |
| 2 3 6 | 7 5 8 | 1 9 4 |
*-----------------------------------------------* |
Either r7c2=4 or r3c8=5
r7c2=4 => r7c3=7 => r1c5=7
r3c8=5 => r2c9=7 => r5c6=7 |
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Asellus
Joined: 05 Jun 2007
Posts: 865
Location: Sonoma County, CA, USA
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| Posted: Mon Oct 27, 2008 8:07 pm Post subject: |
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Or, dealing only with <7>s in that 45 UR:
(7)r5c6=(7)r5c9 - UR[(7)r46c8=(7)r46c2] - (7)r4c1=(7)r2c1 - (7)r1c3=(7)r1c5 |
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