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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Tue Apr 27, 2010 6:32 am Post subject: Puzzle 10/04/27 (A) |
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| Code: | +-----------------------+
| 5 1 . | . . . | . 2 . |
| 7 9 . | 5 . 6 | . . . |
| . . . | . . 9 | . . . |
|-------+-------+-------|
| . 6 . | 2 . . | . . . |
| . . . | . . . | 6 4 . |
| . 5 1 | . . 4 | . . 3 |
|-------+-------+-------|
| . . . | . 1 2 | 3 9 . |
| . . . | . 4 . | 7 5 . |
| . . . | . . 7 | . . 4 |
+-----------------------+
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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: Tue Apr 27, 2010 10:50 am Post subject: |
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Box 3 was very busy in this one!
| Quote: | xy-wing(158); r3c9<>5, r4c7<>5
xy-wing(189); r45c9<>1
xyz-wing(678); r1c9<>6 |
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Mogulmeister
Joined: 03 May 2007
Posts: 1151
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| Posted: Tue Apr 27, 2010 2:54 pm Post subject: |
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| Quote: | <168> xy wing r2c8 <>1
<678> xyz wing r1c9 <> 6 |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Wed Apr 28, 2010 12:58 am Post subject: |
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I was still chasing ALSs, and ended up with five steps.
xy-wing 1-58 with vertex 18 in r2c9; r3c9|r4c7<>5
type 1 UR15 in r45c69; r4c9<>15
(6)r3c3 - r3c1 = r9c1 - r9c8 = r7c9 - r13c9 = (6)r3c8; r3c3<>6 (Found while looking at the UR 28 below.)
UR28 in r23c35 with strong link on 2 in row 2 & col5; r3c3<>8
ALS368[(8)r1c35 = (6)r1c3]r1c35 - r3c1 = r9c1 - (6=1)r9c8 - (1=8)r9c7; r1c<>8
Danny, your puzzles continue to offer a great deal of variety and FUN. Thanks as always!
Ted |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Wed Apr 28, 2010 5:03 am Post subject: |
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| Identical to MM's solution. |
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