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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Mon Feb 08, 2010 6:05 pm Post subject: Puzzle 10/02/08 Bonus Puzzle |
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| Code: | +-----------------------+
| 9 . . | . . . | 1 3 . |
| . 5 . | 6 . 3 | 9 . . |
| . . 6 | 9 . . | . . 4 |
|-------+-------+-------|
| . 9 8 | 2 . 1 | . . . |
| . . . | . 8 . | . . . |
| . 6 . | 3 . 5 | 8 . 7 |
|-------+-------+-------|
| 3 8 . | . . 6 | 7 . . |
| 6 . . | . . . | . 8 . |
| . . 2 | . . 8 | . . 3 |
+-----------------------+
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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: Tue Feb 09, 2010 3:03 pm Post subject: |
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A fun puzzle...........
| Quote: | xy-wing 4-79 with vertex in r6c5,
w-wing 14 in r6c3 & r9c1 and strong link on 1 in r2c13 plus a transport,
xy chain: (5=2)r3c7 - (2=7)r2c8 - r2c5 = r9c5 - (7=1)r9c2 - (1=5)r9c4; r9c7<>5.
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Ted |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Wed Feb 10, 2010 12:18 am Post subject: |
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Also a fun puzzle, but with five more steps than these heavyweights I'm competing against.  |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Wed Feb 10, 2010 1:45 am Post subject: |
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| Marty R. wrote: | | Also a fun puzzle, but with five more steps than these heavyweights I'm competing against. |
In most cases, I believe that luck has the greatest hand in determining how many steps are used to complete a puzzle. Unless a deletion influences a later step, it is useless but counts as a step. When a person takes every move as they are found, I can only assume that some are useless. The positive side of the situation is that even the useless moves can be FUN!
keep stepping.........
Ted |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Wed Feb 10, 2010 4:47 am Post subject: |
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| That's true to a large extent, but don't downplay the tremendous strides you've made in your solving abilities. |
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daj95376
Joined: 23 Aug 2008
Posts: 3854
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| Posted: Wed Feb 10, 2010 5:13 pm Post subject: |
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I don't know if any steps are extraneous, but there's only one VH+ step.
| Code: | r69 X-Wing <> 9 r5c8,r7c58
<49+7> XY-Wing r6c5/r5c4+r9c5 <> 7 r89c4
r26 X-Wing <> 2 r35c8
c35\r26 finned X-Wing <> 4 r2c1
<12+4> XY-Wing r2c1/r1c2+r9c1 <> 4 r89c2
c26 X-Wing <> 4 r1c3
r26 X-Wing <> 4 r1c3
BUG+1 = 5 r9c8
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