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Puzzle 10/03/05 A

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daj95376

Joined: 23 Aug 2008
Posts: 3854

Posted: Sat Mar 06, 2010 4:11 am Post subject: Puzzle 10/03/05 A

Code:

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

Play this puzzle online at the Daily Sudoku site

Marty R.

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

Posted: Sat Mar 06, 2010 5:26 am Post subject:

Two steps.

Quote:

XY-Wing (371)
Type 1 UR (17)

arkietech

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

Posted: Sat Mar 06, 2010 8:25 am Post subject:

It is long and hairy but it is one step: Rolling Eyes

Code:

*-----------------------------------------------------------------------------*
| 2 157 17 | 457 3 8 | 6 149 149 |
| 359 8 69 | 456 46 1 | 234 234 7 |
| 37 167 4 | 67 9 2 | 13 8 5 |
|-------------------------+-------------------------+-------------------------|
| 4 17 17 | 3 25 6 | 8 259 29 |
| 6 3 5 | 249 8 49 | 124 7 124 |
| 8 9 2 | 1 45 7 | 345 3456 346 |
|-------------------------+-------------------------+-------------------------|
| 1 256 69 | 8 246 3459 | 7 23456 2346 |
| 579 2567 8 | 2469 17 3459 | 123459 123456 12346 |
| 579 4 3 | 269 17 59 | 1259 1256 8 |
*-----------------------------------------------------------------------------*
(2)r4c5 = (2-6)r7c5 = r2c5 - (6-9)r2c3 - r7c3 = r7c6 - r5c6 = (9-2)r5c4 = (2)r4c5;
r4c5=2

tlanglet

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

Posted: Sat Mar 06, 2010 11:48 am Post subject:

Same solution as Marty................... Ted

Wendy W

Joined: 04 Feb 2008
Posts: 144

Posted: Tue Mar 09, 2010 1:20 am Post subject:

I used another xy-wing (249) in between Marty's 2 steps.

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