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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Mon Mar 07, 2011 9:51 pm Post subject: Puzzle 11/03/07: ~ Difficult |
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This batch of puzzles seems to be mostly Moderate puzzles. I'll see what I can do to turn some of them into Difficult puzzles.
| Code: | +-----------------------+
| 2 . 4 | . . . | . . . |
| . 1 . | . . . | . 9 . |
| 9 . 6 | . . . | 2 1 5 |
|-------+-------+-------|
| . . . | 1 . . | . 4 . |
| . . . | . 9 7 | . . . |
| . . . | . 2 . | . 3 9 |
|-------+-------+-------|
| . . 1 | . . . | . . 4 |
| . 7 2 | 9 . 4 | . 5 8 |
| . . 8 | . . 1 | 3 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: Thu Mar 10, 2011 2:48 am Post subject: |
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I am falling behind completing puzzles, but I finally had time for this one..........
#1: (3=6)r2c9-als(68=7)r1c78-r7c8=r9c9-als(7=56)r9c45-(6=3)r8c5-r4c5=(3)r4c6*-r3c6=(3)r3c2; r2c6*,r2c13<>3
#2: Flightless xy-wing (-356) vertex (56)r7c2; r7c1,r8c5<>3
(3)r1c2-r3c2=r3c6-r12c4=(3)r7c4
Ted |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Thu Mar 10, 2011 5:49 am Post subject: |
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I gave up on this after seven moves, but picked it up again and found an XY-Chain which opened up a puzzle-ending XY-Wing.
I'd be a rich man if I could get paid by the move.  |
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peterj
Joined: 26 Mar 2010
Posts: 974
Location: London, UK
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| Posted: Fri Mar 11, 2011 8:39 am Post subject: |
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w-wing-like - at a stretch!
| Code: | | anp(6=53)r71c2 - r3c2=r3c6 - r4c6=r4c5 - (3=6)r8c5 ; r8c1<>6, r7c456<>6 |
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