dailysudoku.com :: View topic - Free Press April 13, 2012

dailysudoku.com
Discussion of Daily Sudoku puzzles

FAQ

Memberlist

Usergroups

Profile

Free Press April 13, 2012

dailysudoku.com Forum Index -> Other puzzles

View previous topic :: View next topic

Author

Message

keith

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

Posted: Mon Apr 23, 2012 8:37 pm Post subject: Free Press April 13, 2012

I'm back, for a while.

Code:

Puzzle: FP041312
+-------+-------+-------+
| . . . | . 8 . | . . . |
| . 1 . | 7 . . | . 4 . |
| . 2 6 | . . 4 | 8 1 . |
+-------+-------+-------+
| . . . | 6 4 . | 7 . . |
| 4 . . | . . . | . . 1 |
| . . 2 | . 3 1 | . . . |
+-------+-------+-------+
| . 8 9 | 2 . . | 1 3 . |
| . 3 . | . . 6 | . 8 . |
| . . . | . 1 . | 2 . . |
+-------+-------+-------+

Play this puzzle online at the Daily Sudoku site

Keith

arkietech

Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

Posted: Mon Apr 23, 2012 9:44 pm Post subject: Re: Free Press April 13, 2012

keith wrote:

I'm back, for a while.

Welcome back Very Happy

Code:

*--------------------------------------------------*
| 39 59 4 | 1 8 239 | 6 7 25 |
| 389 1 58 | 7 6 239 |c39 4 25 |
| 7 2 6 |e39 5 4 | 8 1 d39 |
|----------------+----------------+----------------|
| 1 59 358 | 6 4 89 | 7 2 389 |
| 4 6 a38 | 59-8 2 7 |b39 59 1 |
| 89 7 2 | 589 3 1 | 4 569 689 |
|----------------+----------------+----------------|
| 6 8 9 | 2 7 5 | 1 3 4 |
| 2 3 1 | 4 9 6 | 5 8 7 |
| 5 4 7 |f38 1 38 | 2 69 69 |
*--------------------------------------------------*
loooong xy chain of pairs
(8=3)r5c3-[(3=9)r5c7-(9=3)r2c7-(3=9)r3c9-(9=3)r3c4-](3=8)r9c4 => r5c4<>8;
stte

Play/Print

Marty R.

Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

Posted: Mon Apr 23, 2012 10:56 pm Post subject:

I had a hunch there was a one-stepper in there, but I used two. M-Wing on 38 in boxes 46 XY-Wing on 893 with pincer transport.

keith

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

Posted: Tue Apr 24, 2012 12:36 am Post subject:

I think this is kind of elegant. After basics:

Code:

+-------------+-------------+-------------+
| 39 59 4 | 1 8 239 | 6 7 25 |
| 389 1 58 | 7 6 239 |B39 4 25 |
| 7 2 6 |D39 5 4 | 8 1 C39 |
+-------------+-------------+-------------+
| 1 59 358 | 6 4 @89 | 7 2 389 |
| 4 6 38 |58-9 2 7 |A39 @59 1 |
| 89 7 2 | 589 3 1 | 4 569 689 |
+-------------+-------------+-------------+
| 6 8 9 | 2 7 5 | 1 3 4 |
| 2 3 1 | 4 9 6 | 5 8 7 |
| 5 4 7 | 38 1 38 | 2 69 69 |
+-------------+-------------+-------------+

Remote pair / skyscraper takes out 9 in R5C4.

Then, with no further simplifications, the cells @ have the same value (coloring on 9) and they are pincers on 9 via the flightless XY-wing 58-9 centered on R5C5. The cells @ must be 9.

Keith

Display posts from previous:

	dailysudoku.com Forum Index -> Other puzzles	All times are GMT
Page 1 of 1

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum