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Jun 2 VH

 
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Clement



Joined: 24 Apr 2006
Posts: 684
Location: Dar es Salaam Tanzania

PostPosted: Fri Jun 01, 2012 10:49 pm    Post subject: Jun 2 VH Reply with quote

After the Basics
Code:

+---------+-------------+------------+
| 5  3 89 | 4  *68   7   | 1 *69   2   |
| 7  1 89 | 23 5    268 | 4 3-69  368 |
| 6  4 2  | 1  3-89  -89  | 5 7    38  |
+---------+-------------+------------+
| 9  5 6  | 8  7    3   | 2 1    4   |
| 2  7 34 | 6  1    45  | 9 8    35  |
| 1  8 34 | 9  2    45  | 6 35   7   |
+---------+-------------+------------+
| 34 6 5  | 7  349  29  | 8 24   1   |
| 34 9 1  | 23 34-68 268 | 7 245-6 56  |
| 8  2 7  | 5  *46   1   | 3 *46   9   |
+---------+-------------+------------+
X-Wing on 6 in row 19; r28c8<>6, r8c5<>6 followed by
XY-Wing 89 39 38 pivoted in r2c8 with pincer transport on 8 from r2c3 to r1c5; r3c56<>8 which solves it.
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Marty R.



Joined: 12 Feb 2006
Posts: 5165
Location: Rochester, NY, USA

PostPosted: Sat Jun 02, 2012 1:32 am    Post subject: Reply with quote

Quote:
XY-Wing 89 39 38 pivoted in r2c8 with pincer transport on 8 from r2c3 to r1c5; r3c56<>8 which solves it.


Clement, transport not needed; direct elimination r2c9<>8.
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arkietech



Joined: 31 Jul 2008
Posts: 1728
Location: Northwest Arkansas USA

PostPosted: Sat Jun 02, 2012 5:31 am    Post subject: Reply with quote

Code:

 *-----------*
 |5..|4.7|..2|
 |...|...|4..|
 |..2|...|57.|
 |---+---+---|
 |9.6|.73|.1.|
 |.7.|.1.|.8.|
 |.8.|92.|6.7|
 |---+---+---|
 |.65|...|8..|
 |..1|...|...|
 |8..|5.1|..9|
 *-----------*

 *-----------------------------------------------------------*
 | 5     3    a89    | 4     6-8   7     | 1    b69    2     |
 | 7     1     89    | 23    5     268   | 4     369   368   |
 | 6     4     2     | 1     389  c89    | 5     7     38    |
 |-------------------+-------------------+-------------------|
 | 9     5     6     | 8     7     3     | 2     1     4     |
 | 2     7     34    | 6     1     45    | 9     8     35    |
 | 1     8     34    | 9     2     45    | 6     35    7     |
 |-------------------+-------------------+-------------------|
 | 34    6     5     | 7     349  c29    | 8    b24    1     |
 | 34    9     1     | 23    3468  268   | 7     2456  56    |
 | 8     2     7     | 5     46    1     | 3    b46    9     |
 *-----------------------------------------------------------*
 xy-wing
 (8=9)r1c3-(469=2)r179c8-(29=8)r37c6 => r1c5<>8; stte


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