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daj95376
Joined: 23 Aug 2008 Posts: 3854
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Posted: Sun Apr 03, 2011 10:55 pm Post subject: Puzzle 11/04/03: ~ Difficult+ |
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Code: | +-----------------------+
| 8 6 . | . . 3 | 7 5 9 |
| 9 5 . | . . . | . . . |
| . . 1 | . . 7 | . . . |
|-------+-------+-------|
| . . . | 9 . . | . 6 7 |
| . . . | . 7 2 | . . . |
| 6 . 9 | . 3 1 | 5 . 2 |
|-------+-------+-------|
| 7 . . | . . 8 | 6 . 3 |
| 5 . . | 3 . . | . . . |
| 3 . . | 7 . 9 | 2 . . |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site |
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tlanglet
Joined: 17 Oct 2007 Posts: 2468 Location: Northern California Foothills
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Posted: Mon Apr 04, 2011 2:20 pm Post subject: |
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Time for a three stepper......
Quote: | #1: anp(24=1)r34c1-r4c7=r5c9-(1=4)r2c9-r3c78=(4)r3c1; r5c1<>4
#2: axy-wing (14-8) vertex (14)r2c9 with fin (4)r8c9; r8c7<>8
If fin is true: (4)r8c9-r5c9=r5c2-r4c1=r3c1-(4=8)r3c7;
#3: x-wing (4)r28c67; r2c4589,r8c259<>4
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Ted |
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peterj
Joined: 26 Mar 2010 Posts: 974 Location: London, UK
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Posted: Mon Apr 04, 2011 4:38 pm Post subject: |
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There must be something in the water - another example of an almost-skyscraper, this time I think(?) you have to use it in a chain rather than just as a "plain" almost/kraken...
Quote: | (4)r9c2=skyscraper(4)[r9c5=r9c8 - r6c8=r6c4] - (4=8)r4c5 - r4c2=r5c2 ; r5c2<>4 |
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Marty R.
Joined: 12 Feb 2006 Posts: 5770 Location: Rochester, NY, USA
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Posted: Tue Apr 05, 2011 4:47 am Post subject: |
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Five steps here.
W-Wing (14)
Coloring (4)
XY-Wing (241)
XY-Wing (468), flightless
M-Wing (14) |
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