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daj95376
Joined: 23 Aug 2008 Posts: 3854
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Posted: Mon Mar 01, 2010 6:48 pm Post subject: Puzzle 10/03/01 (B) |
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Probably difficult as VH+.
Code: | +-----------------------+
| . . . | . . . | 1 . . |
| . 5 . | 1 . 3 | 4 . . |
| . . . | 6 4 7 | . . . |
|-------+-------+-------|
| . 9 7 | 2 . 1 | 5 4 . |
| . . 5 | . . . | . . . |
| . 3 4 | 9 . 5 | . 7 . |
|-------+-------+-------|
| 6 4 . | 7 . . | 2 . . |
| . . . | 5 . 6 | . . . |
| . . . | . . . | . . 1 |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site |
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Marty R.
Joined: 12 Feb 2006 Posts: 5770 Location: Rochester, NY, USA
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Posted: Tue Mar 02, 2010 5:28 am Post subject: |
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Two steps.
Quote: | W-Wing (89)
XY-Wing (389) |
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tlanglet
Joined: 17 Oct 2007 Posts: 2468 Location: Northern California Foothills
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Posted: Tue Mar 02, 2010 2:53 pm Post subject: |
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Three steps.
Quote: | xy-wing -279 with vertex in r2c1,
xyz-wing 389 in r3c7,
w-wing 89 in r2c8 and r5c7.
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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: Tue Mar 02, 2010 10:23 pm Post subject: |
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Thanks to Ted I redid it and found I needed three steps. I don't think I did it differently, I think the first time I failed to include in my notes that my 1st step was an XY-Wing (279). |
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daj95376
Joined: 23 Aug 2008 Posts: 3854
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Posted: Fri Mar 05, 2010 6:50 pm Post subject: |
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Code: | <27+9> XY-Wing r1c2/r1c6+r2c1 <> 9 r1c3,r2c5
<79+2> XY-Wing r2c1/r1c2+r2c5 <> 2 r1c6,r2c3
r1c1 2-String Kite <> 3 r8c8
c18\r28 finned X-Wing <> 9 r2c3
<38+9> XYZ-Wing r3c7/r2c8+r3c1 <> 9 r3c9
<58+9> XY-Wing r3c9/r2c8+r7c9 <> 9 r8c8
<59+8> XY-Wing r7c9/r3c9+r8c8 <> 8 r2c8
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I don't recall which steps were necessary. |
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