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Free Press February 10, 2012

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keith

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

Posted: Sat Feb 11, 2012 2:06 am Post subject: Free Press February 10, 2012

Not yet completed.

Code:

Puzzle: FP021012
+-------+-------+-------+
| 9 7 . | 5 . 2 | 1 . 3 |
| 2 1 . | . . 6 | . . . |
| . . . | . . . | . . . |
+-------+-------+-------+
| 3 . . | 6 . 9 | 2 . . |
| . . 5 | . . . | 6 . . |
| . . . | 3 . 1 | . . 8 |
+-------+-------+-------+
| . . . | . . . | . . . |
| . . . | 8 . . | . 5 9 |
| 5 . 4 | . . 7 | . 8 2 |
+-------+-------+-------+

Play this puzzle online at the Daily Sudoku site

Keith

arkietech

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

Posted: Sat Feb 11, 2012 2:29 am Post subject:

Code:

*--------------------------------------------------------------------*
| 9 7 68 | 5 48 2 | 1 46 3 |
| 2 1 38 | 479 34789 6 | 589 479 457 |
| 4 5 368 |*17-9 *1378-9 38 | 89 2 67 |
|----------------------+----------------------+----------------------|
| 3 48 17 | 6 4578 9 | 2 147 1457 |
| 178 9 5 | 247 2478 48 | 6 3 147 |
| 6 24 27 | 3 457 1 | 59 479 8 |
|----------------------+----------------------+----------------------|
| 78 38 9 | 24 234 5 | 47 16 16 |
| 17 23 127 | 8 6 34 | 47 5 9 |
| 5 6 4 |*19 *19 7 | 3 8 2 |
*--------------------------------------------------------------------*
ur 19 => r3c45=1 => r3c45<>9

Marty R.

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

Posted: Sat Feb 11, 2012 5:33 am Post subject:

Same.

tlanglet

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

Posted: Sat Feb 11, 2012 2:40 pm Post subject:

I also found the AUR(19) so I looked for another solution and found this anp(17=8)r4c3+r5c1-(8=4)r5c6-(4=3)r8c6-(3=2)r8c2-r8c3=r6c3; r6c3<>7 Ted

Marty R.

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

Posted: Sat Feb 11, 2012 4:40 pm Post subject:

Quote:

I also found the AUR(19) so I looked for another solution and found this

Ted, I must be in an overly technical mood this morning, but the 19 is a UR (Type 4), not an AUR. But I would say that it's an ADP. Laughing

keith

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

Posted: Sat Feb 11, 2012 6:26 pm Post subject:

After basics:

Code:

+-------------------+-------------------+-------------------+
| 9 7 68 | 5 48 2 | 1 46 3 |
| 2 1 38 | 479 34789 6 | 589 479 457 |
| 4 5 368 | 179 13789 a38 | 89 2 67 |
+-------------------+-------------------+-------------------+
| 3 48 17 | 6 4578 9 | 2 147 1457 |
|f178 9 5 | 247 2478 4-8 | 6 3 147 |
| 6 24 27 | 3 457 1 | 59 479 8 |
+-------------------+-------------------+-------------------+
|e78 d38 9 | 24 234 5 | 47 16 16 |
| 17 c23 127 | 8 6 b34 | 47 5 9 |
| 5 6 4 | 19 19 7 | 3 8 2 |
+-------------------+-------------------+-------------------+

ad are a W-wing 3-8, with transport af are pincers on 8.

Keith

tlanglet

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

Posted: Sat Feb 11, 2012 9:38 pm Post subject:

Marty R. wrote:

Quote:

I also found the AUR(19) so I looked for another solution and found this

Ted, I must be in an overly technical mood this morning, but the 19 is a UR (Type 4), not an AUR. But I would say that it's an ADP. Laughing

Marty,

In hindsight, I agree that it is a Type 4. However I initially view all such patterns as UARs. In this case, I looked at the external strong inferences and found only one: r3c7=9. Thus I solved the puzzle as an AUR and posted that solution. Cool

Ted

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