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Free Press Oct 15, 2010

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Clement

Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania

Posted: Fri Oct 15, 2010 6:24 pm Post subject: Free Press Oct 15, 2010

A kite in 7 originating from BOX 5 eliminating 7 in r8c9 leads to BUG 1 which solves it.

tlanglet

Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

Posted: Sat Oct 16, 2010 1:36 pm Post subject: Re: Free Press Oct 15, 2010

Clement wrote:

A kite in 7 originating from BOX 5 eliminating 7 in r8c9 leads to BUG 1 which solves it.

Clement,

Please post your puzzle so others may work it also.

Ted

keith

Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA

Posted: Sat Oct 16, 2010 2:09 pm Post subject:

Here is the puzzle:

Code:

Puzzle: FP101510
+-------+-------+-------+
| . . 6 | . . . | . . 2 |
| . . . | . 1 . | 3 7 4 |
| 2 . . | . . 4 | . . 1 |
+-------+-------+-------+
| . . . | 9 . 1 | . . . |
| . 2 3 | . . . | 6 . . |
| . . . | 6 2 3 | . . . |
+-------+-------+-------+
| 8 . . | 5 . . | . . 3 |
| 5 9 1 | . 6 . | . . . |
| . . . | . . . | 9 . . |
+-------+-------+-------+

Play this puzzle online at the Daily Sudoku site
Keith

keith

Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA

Posted: Sat Oct 16, 2010 2:58 pm Post subject:

After basics:

Code:

+-------------+-------------+-------------+
| 4 1 6 | 7 3 5 | 8 9 2 |
| 9 58 58 | 2 1 6 | 3 7 4 |
| 2 3 7 | 8 9 4 | 5 6 1 |
+-------------+-------------+-------------+
| 6 4 58 | 9 78d 1 | 2 3 578 |
|1-7 2 3 | 4 5 78e | 6 18 9 |
| 17a 58 9 | 6 2 3 | 147 148 578 |
+-------------+-------------+-------------+
| 8 6 24 | 5 47c 9 | 17b 12 3 |
| 5 9 1 | 3 6 27 | 47 248 78 |
| 3 7 24 | 1 48 28 | 9 5 6 |
+-------------+-------------+-------------+

Quote:

M-wing: 1 in a forces 1 in b. ac are pincers in 7. Extend pincer c to e, removing 7 in R5C1.

Keith

tlanglet

Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

Posted: Sat Oct 16, 2010 3:03 pm Post subject:

The code after basics:

Code:

*--------------------------------------------------*
| 4 1 6 | 7 3 5 | 8 9 2 |
| 9 *58 *58 | 2 1 6 | 3 7 4 |
| 2 3 7 | 8 9 4 | 5 6 1 |
|----------------+----------------+----------------|
| 6 4 *58 | 9 78 1 | 2 3 *578 |
| 17 2 3 | 4 5 78 | 6 18 9 |
| 17 *58 9 | 6 2 3 | 14-7 148 *578 |
|----------------+----------------+----------------|
| 8 6 24 | 5 47 9 | 17 12 3 |
| 5 9 1 | 3 6 27 | 47 248 -78 |
| 3 7 24 | 1 48 28 | 9 5 6 |
*--------------------------------------------------*

Notice the 6-cell Type 2 UR(58)r246c239 marked *; r6c7,r8c9<>7
This was a fun, unusual more but it did not solve the puzzle, so we need a

BUG+1; r6c8=1

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