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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Sun May 30, 2010 4:26 pm Post subject: Puzzle 10/05/30: (B) BBDB |
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numerous alternative steps
| Code: | +-----------------------+
| 7 6 . | . . . | . . . |
| 5 . 9 | . . . | 4 . 7 |
| . 2 4 | . . . | 8 . . |
|-------+-------+-------|
| . . . | 2 . . | 9 . . |
| . . . | . 4 6 | . . 3 |
| . . . | . 9 3 | 6 8 . |
|-------+-------+-------|
| . 7 5 | 4 . 9 | 2 . . |
| . . . | . . 5 | . . 4 |
| . . . | . 2 . | 3 9 . |
+-----------------------+
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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 31, 2010 8:39 am Post subject: |
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Four steps..
| Quote: | x-wing(8); r4c235<>8, r9c234<>8
xy-wing(7-16) r9c3; r6c4<>7
kite(1); r7c5<>1, r9c3<>1
xy-wing(1-38) r2c2; r1c7<>1 |
Explored various xy-chains but not helpful.. |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Mon May 31, 2010 9:34 pm Post subject: |
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Also a four step solution.........
| Quote: | w-wing 13 r2c8 & r3c1 and grouped SL1 in r7c158: (1)r7c5 - r123c5 = (1)r3c6 - (1=3)r3c1; r2c2, r3c8<>3
x-wing 8 r49c16; r4c235, r9c234<>8
xy-wing 16-7 with vertex 16 in r9c3; r6c4<>7
ANP(18=3)r1c3|r2c2 - r1c45 = (3-7)r3c5 = r3c6 - (7=8)r4c6 - (8=6)r4c1 - (6=3)r4c3; r1c3<>3 |
Ted |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Tue Jun 01, 2010 4:37 am Post subject: |
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| This was a long slog, seven-stepper for me. Started with an extremely rare (for me) Jellyfish on 8, followed by five more common moves and ending with a 68 UR which set up a pincer situation. |
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