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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Fri Dec 05, 2008 11:13 pm Post subject: Set E Puzzle 90 |
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| Code: | +-----------------------+
| 1 3 5 | . . 4 | . . 7 |
| 8 2 . | . . 3 | 5 . . |
| 7 . . | 5 . . | 1 8 . |
|-------+-------+-------|
| . . 9 | . . 8 | . . . |
| . . . | . 9 . | . 5 . |
| 2 7 . | 3 . 5 | . . 1 |
|-------+-------+-------|
| . 4 3 | . . . | 2 . . |
| . . 2 | . 3 . | . . 5 |
| 5 . . | . . 1 | . 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: Sat Dec 06, 2008 4:23 am Post subject: |
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Still another great VH puzzle if you do not take the two Type 1 URs present after basics.
It required four moves for me, but I had to almost start from scratch after each VH step because the character of the puzzle seemed to change. It did not just want to die!
My steps were: | Quote: |
x-wing <4>,
w-wing <26> with strong link <2>,
xy-wing <478> makes one deletion, transporting makes two more, and
Bug+1 |
Ted  |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sat Dec 06, 2008 10:48 pm Post subject: |
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| I used a Type 4 on 34 and another on 17, followed by a Type 1 on 69. I don't know what might have happened had I found the Type 1 earlier. At any rate, a W-Wing on 49 finished it off. |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Sat Dec 06, 2008 11:26 pm Post subject: |
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| Marty R. wrote: | | I used a Type 4 on 34 and another on 17, followed by a Type 1 on 69. I don't know what might have happened had I found the Type 1 earlier. At any rate, a W-Wing on 49 finished it off. |
Norm, I saw Type 1 URs on <17> & <69> early in the game and elected not to use them but suspect that they would result in a shorter solution path.
Ted |
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