dailysudoku.com :: View topic - AU Tough September 20, 2012(VH)

dailysudoku.com
Discussion of Daily Sudoku puzzles

FAQ

Memberlist

Usergroups

Profile

AU Tough September 20, 2012(VH)

dailysudoku.com Forum Index -> Other puzzles

View previous topic :: View next topic

Author

Message

arkietech

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

Posted: Fri Sep 21, 2012 5:21 am Post subject: AU Tough September 20, 2012(VH)

Code:

*-----------*
|..4|..2|...|
|...|..8|9.7|
|3..|.7.|.8.|
|---+---+---|
|6..|..1|...|
|.7.|...|.2.|
|...|5..|..1|
|---+---+---|
|.3.|.9.|..4|
|2.8|6..|...|
|...|3..|6..|
*-----------*

Play/Print this puzzle online

Clement

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

Posted: Fri Sep 21, 2012 9:01 am Post subject: AU Tough September 20, 2012(VH)

Code after Basics

Code:

+----------+-----------+------------+
| 7 8 4 | 9 5 2 | 1 #36 #36 |
| 5 6 2 | 1 3 8 | 9 4 7 |
| 3 1 9 | 4 7 6 | 2 8 5 |
+----------+-----------+------------+
| 6 249 5 | 7 24 1 | 34 *39 8 |
| 49 7 1 | 8 46 3 | 5 2 69 |
| 8 24 3 | 5 246 9 | 47 67 1 |
+----------+-----------+------------+
| 1 3 6 | 2 9 57 | 8 57 4 |
| 2 459 8 | 6 1 457 | 37 357-9 *39 |
| 49 459 7 | 3 8 45 | 6 1 2 |
+----------+-----------+------------+

W-Wing 39 in BOX 69 with SL 3 in row 1; r8c8<>9 solves it.
OR a two-step solution Hidden UR 57 in row 78; r8c6<>7 which opens a
Type 1 UR 45 in col 26; r9c2<>45.

Marty R.

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

Posted: Fri Sep 21, 2012 4:59 pm Post subject:

Code:

+-------------+-------------+--------------+
| 7 8 4 | 9 5 2 | 1 36 36 |
| 5 6 2 | 1 3 8 | 9 4 7 |
| 3 1 9 | 4 7 6 | 2 8 5 |
+-------------+-------------+--------------+
| 6 249 5 | 7 24 1 | 34 39 8 |
| F49 7 1 | 8 E46 3 | 5 2 D69 |
| 8 24 3 | 5 246 9 | 47 67 1 |
+-------------+-------------+--------------+
| 1 3 6 | 2 9 57 | 8 57 4 |
| 2 45 8 | 6 1 A457 | B37 3579 C39 |
| 4-9 G459 7 | 3 8 45 | 6 1 2 |
+-------------+-------------+--------------+

I love to monkey around with pincers on a DP. With the potential DP 45 in boxes 78, A=7 or G=9. A=7-->F=9 via ABCDEF; r9c1<>9.

Alternatively, XY-Wing 396 pivoted in r4c8.

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