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daj95376
Joined: 23 Aug 2008 Posts: 3854
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Posted: Tue Feb 24, 2009 5:55 pm Post subject: Set K Puzzle 1 |
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Code: | +-----------------------+
| 4 . . | 5 . . | 3 . 7 |
| . . 7 | . . . | . 5 . |
| . 6 . | . . . | 2 . 4 |
|-------+-------+-------|
| 3 . . | 7 . . | 1 . 8 |
| . . . | . 2 . | . . . |
| . . . | . . 5 | 4 . 3 |
|-------+-------+-------|
| 2 . 3 | 1 . 7 | 8 . . |
| . 5 . | . . . | . . 2 |
| 7 . 4 | 2 . 6 | . 3 9 |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site |
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storm_norm
Joined: 18 Oct 2007 Posts: 1741
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Posted: Tue Feb 24, 2009 7:14 pm Post subject: |
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Code: | .---------------------.---------------------.---------------------.
| 4 28 1289 | 5 169 18 | 3 689 7 |
| 89 3 7 | 4689 469 2 | 69 5 1 |
| 5 6 189 | 389 7 138 | 2 89 4 |
:---------------------+---------------------+---------------------:
| 3 24 5 | 7 469 49 | 1 269 8 |
| 1689 478 689 | 34689 2 138 | 69 679 5 |
| 1689 278 2689 | 689 169 5 | 4 2679 3 |
:---------------------+---------------------+---------------------:
| 2 9 3 | 1 5 7 | 8 4 6 |
| 68 5 68 | 49 3 49 | 7 1 2 |
| 7 1 4 | 2 8 6 | 5 3 9 |
'---------------------'---------------------'---------------------' |
not sure what to call this move on 9's
(9)r5c7 = (9)r456c8 - (9)r13c8 = (9)r2c7 - (9)r2c1 = (9)r13c3; r5c3 <> 9
naked pair in col 3.
leads too...
(9=6)r5c7 - (6=8)r5c3 - (8)r8c3 = (8)r8c1 - (8=9)r2c1; r2c7 <> 9
singles. |
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wapati
Joined: 10 Jun 2008 Posts: 472 Location: Brampton, Ontario, Canada.
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Posted: Tue Feb 24, 2009 7:51 pm Post subject: |
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The first step is easier as an ER from box1 or as a finned x-wing in columns 1 and 7.
For the next big step I like a finned swordfish on 8s that eventually sets r2c7 to 6. |
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tlanglet
Joined: 17 Oct 2007 Posts: 2468 Location: Northern California Foothills
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Posted: Tue Feb 24, 2009 9:50 pm Post subject: |
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I started with a x-wing, then the ER hinged in box1, and then two xy-wings.
Definitely a fun puzzle.
Ted |
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Marty R.
Joined: 12 Feb 2006 Posts: 5770 Location: Rochester, NY, USA
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Posted: Thu Feb 26, 2009 12:31 am Post subject: |
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I had a couple of ERs, a UR, X-Wing and finished up with an XY-Wing with pincer transport. |
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