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keith
Joined: 19 Sep 2005 Posts: 3355 Location: near Detroit, Michigan, USA
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Posted: Fri May 13, 2011 11:35 am Post subject: Free Press May 13, 2011 |
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Requires advanced moves.
Code: | Puzzle: FP051311
+-------+-------+-------+
| 8 2 . | . . 4 | . . . |
| . 9 . | . 8 . | . 1 6 |
| . . 5 | . . 7 | . . . |
+-------+-------+-------+
| . . . | . 5 . | . 3 . |
| 6 . . | 1 . 3 | . . 7 |
| . 1 . | . 9 . | . . . |
+-------+-------+-------+
| . . . | . . . | 6 . . |
| 4 5 . | . 3 . | . 2 . |
| 1 . . | . . . | . 5 8 |
+-------+-------+-------+
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Play this puzzle online at the Daily Sudoku site
Keith |
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keith
Joined: 19 Sep 2005 Posts: 3355 Location: near Detroit, Michigan, USA
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Posted: Fri May 13, 2011 12:56 pm Post subject: |
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After basics: Code: | +----------------+----------------+----------------+
| 8 2 1 | 39 6 4 | 379 79 5 |
| 7 9 4 | 23 8 5 | 23 1 6 |
| 3 6 5 | 29 1 7 | 2489 489 249 |
+----------------+----------------+----------------+
| 29 478 2789 | 468 5 268 | 1289 3 129 |
| 6 48 289 | 1 24 3 | 5 89 7 |
| 5 1 3 | 7 9 28 | 248 6 24 |
+----------------+----------------+----------------+
| 29 78 2789 | 5 247 1 | 6 479 3 |
| 4 5 679 | 68 3 689 | 179 2 19 |
| 1 3 2679 | 46 247 269 | 479 5 8 |
+----------------+----------------+----------------+ |
Quote: | A grouped skyscraper (finned X-wing) and an XY-wing did it for me. |
Keith |
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tlanglet
Joined: 17 Oct 2007 Posts: 2468 Location: Northern California Foothills
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Posted: Fri May 13, 2011 2:13 pm Post subject: |
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A fun puzzle with a one step solution............
Quote: | axy-wing (78-4) vertex (78)r7c2 with fin (2)r7c5; r5c5<>4
If fin is true: (2)r7c5-r9c56=r9c3-als(2=89)r5c38-(8=4)r5c2;
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Ted |
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peterj
Joined: 26 Mar 2010 Posts: 974 Location: London, UK
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Posted: Fri May 13, 2011 5:05 pm Post subject: |
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Here's an odd one!
[Edit] Duh! Forget all that - if you read it - it's just two finned-xwings that force an 8...
Last edited by peterj on Fri May 13, 2011 9:42 pm; edited 1 time in total |
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cgordon
Joined: 04 May 2007 Posts: 769 Location: ontario, canada
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Posted: Fri May 13, 2011 5:08 pm Post subject: |
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ERs remove the 9 from R7C8 and the 2 from R7C5 - and Bob's your uncle ! |
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Clement
Joined: 24 Apr 2006 Posts: 1111 Location: Dar es Salaam Tanzania
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Posted: Fri May 13, 2011 5:14 pm Post subject: |
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I used a kite in 2 originating in BOX 4; r7c5<>2 which opens an XY-Wing 47 78 48; r5c5<>4. |
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daj95376
Joined: 23 Aug 2008 Posts: 3854
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Posted: Fri May 13, 2011 5:35 pm Post subject: |
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Code: | r5c1 2-String Kite <> 2 r7c5
r5c1 2-String Kite <> 9 r7c8
exposes <47> Naked Pair ... and Singles follow
+--------------------------------------------------------------+
| 8 2 1 | 39 6 4 | 379 79 5 |
| 7 9 4 | 23 8 5 | 23 1 6 |
| 3 6 5 | 29 1 7 | 2489 489 249 |
|--------------------+--------------------+--------------------|
| 29 478 2789 | 468 5 268 | 1289 3 129 |
| 6 48 289 | 1 24 3 | 5 89 7 |
| 5 1 3 | 7 9 28 | 248 6 24 |
|--------------------+--------------------+--------------------|
| 29 78 2789 | 5 247 1 | 6 479 3 |
| 4 5 679 | 68 3 689 | 179 2 19 |
| 1 3 2679 | 46 247 269 | 479 5 8 |
+--------------------------------------------------------------+
# 65 eliminations remain
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Marty R.
Joined: 12 Feb 2006 Posts: 5770 Location: Rochester, NY, USA
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Posted: Fri May 13, 2011 7:20 pm Post subject: |
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I used Finned X-Wings on 9 and 2.
R89c3<>9
R9c3<>2 |
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