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Vanhegan fiendish 5/1/12

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arkietech

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

Posted: Tue May 01, 2012 5:38 am Post subject: Vanhegan fiendish 5/1/12

Code:

*-----------*
|8..|9..|1..|
|..2|...|43.|
|.1.|.6.|...|
|---+---+---|
|.9.|.47|..5|
|.5.|.9.|.6.|
|7..|65.|.4.|
|---+---+---|
|...|.7.|.1.|
|.84|...|3..|
|..5|..3|..2|
*-----------*

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Marty R.

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

Posted: Tue May 01, 2012 4:32 pm Post subject:

Potential DP 38-18-13 boxes 456. Either r56c3=1 or r5c6=2. Several common outcomes, such as r1c6=5, solve the puzzle.

Code:

+-----------+-------------+------------+
| 8 4 7 | 9 3 25 | 1 25 6 |
| 59 6 2 | 178 18 158 | 4 3 789 |
| 359 1 39 | 278 6 4 | 25 79 789 |
+-----------+-------------+------------+
| 36 9 136 | 13 4 7 | 28 28 5 |
| 4 5 138 | 1238 9 128 | 7 6 13 |
| 7 2 138 | 6 5 18 | 9 4 13 |
+-----------+-------------+------------+
| 2 3 69 | 58 7 69 | 58 1 4 |
| 169 8 4 | 15 2 69 | 3 579 79 |
| 19 7 5 | 4 18 3 | 6 89 2 |
+-----------+-------------+------------+

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arkietech

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

Posted: Tue May 01, 2012 5:32 pm Post subject:

Code:

*-----------------------------------------------------------*
| 8 4 7 | 9 3 25 | 1 25 6 |
| 59 6 2 | 178 18 158 | 4 3 789 |
| 359 1 39 | 278 6 4 | 25 79 789 |
|-------------------+-------------------+-------------------|
|d6-3 9 136 |a13 4 7 | 28 28 5 |
| 4 5 138 | 1238 9 128 | 7 6 13 |
| 7 2 138 | 6 5 18 | 9 4 13 |
|-------------------+-------------------+-------------------|
| 2 3 69 | 58 7 69 | 58 1 4 |
|c169 8 4 |b15 2 69 | 3 579 79 |
| 19 7 5 | 4 18 3 | 6 89 2 |
*-----------------------------------------------------------*
h-wing (3-SIS using bivalue(XY), bilocation(Y), and bilocation(Z)).
(3=1)r4c4-r8c4=(1-6)r8c1=(6)r4c1 => r4c1<>3; stte

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