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keith
Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
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 Posted: Fri Sep 16, 2011 2:49 pm Post subject: Free Press September 16, 2011 |
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Not yet done. Seems to be on the long side, many steps. | Code: | Puzzle: FP091611
+-------+-------+-------+
| 6 . 3 | . 1 7 | . . . |
| . 2 1 | . . . | . 6 . |
| . 7 . | . . . | . . . |
+-------+-------+-------+
| 5 . . | 3 . . | . . . |
| . 8 . | . . . | 6 5 . |
| 4 . . | 2 . 5 | . . 9 |
+-------+-------+-------+
| . . . | . . . | . 7 . |
| . 1 . | . . . | 8 9 . |
| . . . | 8 7 . | 4 . 2 |
+-------+-------+-------+
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Play this puzzle online at the Daily Sudoku site
Keith |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Fri Sep 16, 2011 5:51 pm Post subject: |
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| I used a UR, XY-Wing, three W-Wings and a Skyscraper. |
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keith
Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
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| Posted: Fri Sep 16, 2011 6:00 pm Post subject: |
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| Marty R. wrote: | | I used a UR, XY-Wing, three W-Wings and a Skyscraper. |
I sort of had the same. After basics: | Code: | +-------------+-------------+-------------+
| 6 45 3 | 459 1 7 | 259 24 8 |
| 89 2 1 | 459 345 38 | 579 6 47 |
| 89 7 45 | 6 245 28 | 59 3 1 |
+-------------+-------------+-------------+
| 5 69 69 | 3 8 1 | 27 24 47 |
| 1 8 2 | 7 49 49 | 6 5 3 |
| 4 3 7 | 2 6 5 | 1 8 9 |
+-------------+-------------+-------------+
| 2 469 8 | 1 459 469 | 3 7 56 |
| 7 1 46 | 45 23 23 | 8 9 56 |
| 3 569 569 | 8 7 69 | 4 1 2 |
+-------------+-------------+-------------+
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Then I noticed the skyscraper on 4 in R38 is a one-stepper.
Keith |
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Clement
Joined: 24 Apr 2006
Posts: 1113
Location: Dar es Salaam Tanzania
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| Posted: Fri Sep 16, 2011 6:19 pm Post subject: Free Press September 16, 2011 |
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| I used the two hidden UR's 49 and 69 followed by W-wing 45 with SL 4 in row 8 setting r3c5<>5. After that, a Kite in 4 originating from BOX 1 setting r7c5<>4. |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Fri Sep 16, 2011 8:30 pm Post subject: |
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Here is a three step solution; a heavy hammer and two easy nudges...........
Almost Sue de Coq b2 & r2
abcde=(34589)r2c456
ab=(89)r1c2
cd=(45)r3c5
e=(3)r2c56
fin (2)r3c5
SdC(34589)b2&r2=(2)r3c5-(2=8=9=5=4)r3c6173-(4=5)r1c2; r1c4<>5
coloring (4); r1c4<>4
coloring (4); lots of deletions
Ted |
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keith
Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
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| Posted: Sat Sep 24, 2011 2:08 am Post subject: |
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SS said:
3 x Simple Forcing Chains
1 x XYZ-Wing
1 x XY-Wing
1 x Unique Rectangles and Loops
1 x Comprehensive Naked Sets
3 x Intersection Removal
1 x Simple Hidden Sets
2 x Simple Naked Sets
20 x Pinned Squares
Seems more complicated.
Keith |
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