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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Fri Jul 29, 2011 11:43 pm Post subject: Puzzle 11/07/29: C XY |
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| Code: | +-----------------------+
| . 4 1 | 3 . . | . 6 . |
| 2 . . | . . . | 1 . . |
| 6 . . | . 2 . | 3 . 8 |
|-------+-------+-------|
| 9 . . | 1 . . | 4 . . |
| . . 7 | . . 4 | . . 9 |
| . . . | . 7 9 | . . . |
|-------+-------+-------|
| . 2 4 | 5 . . | 7 . 1 |
| 1 . . | . . . | . 5 . |
| . . 3 | . 1 . | 2 . . |
+-----------------------+
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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: Sun Jul 31, 2011 2:44 pm Post subject: |
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I definitely worked hard on this puzzle; just couldn't find a move that provided major damage.
skyscraper (9)r17c5; r2c8, r8c7<>9
xy-wing (68-9)b9q48+r8c3; r9c2<>9
(9)r2c4=(9)r9c4-(9=8=7)r9c86-(7=6)r2c6; r2c4<>6
Type 1 UR(47)r23c48; r2c4=9
Ted |
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daj95376
Joined: 23 Aug 2008
Posts: 3854
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| Posted: Sun Jul 31, 2011 4:09 pm Post subject: |
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| Another puzzle that seems to have a "tight" sequence of steps. Sorry! |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Sun Jul 31, 2011 7:37 pm Post subject: |
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| daj95376 wrote: | | Another puzzle that seems to have a "tight" sequence of steps. Sorry! |
Danny, you have absolutely nothing to be sorry about; everything within the classification is fair game 
Besides, I firmly believe that we do not want to find ourselves in the same situation as the Daily Sudoku VH puzzles where all are solved with a xy-wing. Variety is the spice of life....
Ted |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sun Jul 31, 2011 9:10 pm Post subject: |
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A very enjoyable puzzle with a satisfying solution, even if I needed one more step than Ted.
Finned X-Wing; r1c5<>9
XY-Loop from r2c6 to r7c6; r8c6<>7, r9c4<>8, r7c5<>3, r4c6<>6
Type 1 UR (47); r2c4<>47
W-Wing (69), SL 6 in c6; r2c5, r89c4<>9
XY-Wing (689); r9c2<>9 |
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