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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Mon May 24, 2010 4:26 pm Post subject: Puzzle 10/05/24: (C) Advanced |
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| Code: | +-----------------------+
| 2 . . | . . 3 | . . . |
| . . 6 | 2 . . | 7 . . |
| . 3 . | . 7 8 | 4 . . |
|-------+-------+-------|
| . 7 . | . . 2 | 3 . 4 |
| . . 2 | . . 7 | 8 . . |
| 6 . 3 | 5 1 . | 2 . 7 |
|-------+-------+-------|
| . 6 8 | 7 2 5 | . . . |
| . . . | . . . | . 3 . |
| . . . | 3 . 6 | . . 2 |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site |
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peterj
Joined: 26 Mar 2010
Posts: 974
Location: London, UK
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| Posted: Mon May 24, 2010 8:24 pm Post subject: |
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I couldn't avoid the single digit move on 5...
Then a ... what's in a name, a rose by any other name etc. .. ANP or ALS or Almost XY or..
| Quote: | skyscraper(5); r2c8<>5, r5c9<>5
xy-chain/ANP: (1=45)r12c2-(5=9)r5c2-(9=6)r5c4-(6=1)r3c4; r3c13<>1 |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Mon May 24, 2010 10:52 pm Post subject: |
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I finally found some time to work on a puzzle; way to many distractions.....
I also started with the move on (5). Then I found two "Almost" xyz-wings but then realized they were not need if I used a conflicting chain which I found exploring an ANP(16=4)r13c4.
| Quote: | | (4-1)r1c4 = r1c2 - (1=9)r9c2 - r5c2 = r5c4 - (9=4)r8c4 - (4)r1c4; r1c4<>4 |
Ted |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Wed May 26, 2010 4:47 am Post subject: |
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| I played the Type 1 UR on 19, then ERs on 9 & 5. Next was the 45 UR. I don't know what it's called, but the DP killers were a 1 or 6 and they created a pincer situation. |
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