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daj95376
Joined: 23 Aug 2008 Posts: 3854
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Posted: Tue Jan 12, 2010 6:29 pm Post subject: Puzzle 10/01/12 (A) |
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4-stepper VH+
Code: | +-----------------------+
| . . 6 | . 4 1 | . 7 3 |
| . 4 . | . . 8 | 6 . . |
| 1 . 7 | . 6 . | 4 . . |
|-------+-------+-------|
| . . . | 1 . . | . . 7 |
| 2 . 8 | . 7 . | . . . |
| 7 3 . | . . 6 | . . . |
|-------+-------+-------|
| . 5 1 | . . . | 7 . 2 |
| 9 . . | . . . | . 4 6 |
| 8 . . | 6 . . | 3 1 . |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site |
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arkietech
Joined: 31 Jul 2008 Posts: 1834 Location: Northwest Arkansas USA
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Posted: Tue Jan 12, 2010 11:20 pm Post subject: |
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I needed three steps: Quote: | w-wing 59
turbot 9
skyscraper 2 |
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tlanglet
Joined: 17 Oct 2007 Posts: 2468 Location: Northern California Foothills
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Posted: Wed Jan 13, 2010 1:27 am Post subject: |
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I used four steps.
Quote: | m-wing: (9=5)r2c5 - (5=9)r2c8 - (9)r7c8 = (9)r9c9; r9c5<>9,
xy-wing -259 with vertex in r2c5
UR27[(5)r89c6 = (9)r9c6]r89c26 - (9=4)r7c6 - (49=8)r7c4 - (8=5)r8c4; r9c5<>5,
kite on 2.
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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 Jan 13, 2010 5:38 am Post subject: |
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Type 4 UR on 27 and two ERs, both on 2. |
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