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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Thu May 14, 2009 3:35 pm Post subject: Puzzle NR_018 |
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| Code: | +-----------------------+
| . . . | 7 . 5 | 3 6 . |
| . 2 . | 3 9 . | 4 1 . |
| . . . | . . 4 | 8 . . |
|-------+-------+-------|
| 1 4 . | . . . | 6 . . |
| . 3 . | . . . | . . 1 |
| 9 . 7 | . . . | . . . |
|-------+-------+-------|
| 4 9 3 | 1 . . | . 2 . |
| 7 8 . | . . . | 1 . . |
| . . . | . 3 . | . . 6 |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site |
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Thu May 14, 2009 4:13 pm Post subject: |
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Needed 3 steps: | Quote: | xyz-wing 348
w-wing 58
xy-486 |
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storm_norm
Joined: 18 Oct 2007
Posts: 1741
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| Posted: Fri May 15, 2009 2:10 am Post subject: |
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| Code: | .------------------.------------------.------------------.
| 8 1 4 | 7 2 5 | 3 6 9 |
| 6 2 5 | 3 9 8 | 4 1 7 |
| 3 7 9 | 6 1 4 | 8 5 2 |
:------------------+------------------+------------------:
| 1 4 28 | 2589 578 3 | 6 789 *58 |
| 5 3 28 | 2489 4678 2679 | 29 4789 1 |
| 9 6 7 | 2458 458 1 |*25 U348 U34 |
:------------------+------------------+------------------:
| 4 9 3 | 1 678 67 |*57 2 58 |
| 7 8 6 | 2459 45 29 | 1 U349 U34 |
| 2 5 1 | 48 3 79 |*7-9 48 6 |
'------------------'------------------'------------------' |
UR {3,4} r68c89 says the 9 in r8c8 and the 8 in r6c8 are strongly linked...
UR34[(9)r8c8 = (8)r6c8] - (8=5)r4c9 - (5)r6c7 = (5-7)r7c7 = (7)r9c7; r9c7 <> 9 |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sun May 17, 2009 11:20 pm Post subject: |
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The XYZ-Wing (348) and W-Wing (5 did it for me. |
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