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playr.co.uk extreme 7/25/10

 
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storm_norm



Joined: 18 Oct 2007
Posts: 1741
PostPosted: Sun Jul 25, 2010 7:48 pm    Post subject: playr.co.uk extreme 7/25/10 Reply with quote
Code:
. . .|7 . 4|. . .
8 . .|6 2 5|. . 1
. . 5|9 1 3|2 . .
-----+-----+-----
1 . 4|3 7 8|6 . 9
. . .|. . .|. . .
3 . 6|1 5 9|4 . 7
-----+-----+-----
. . 3|4 9 1|8 . .
6 . .|8 3 2|. . 4
. . .|5 . 7|. . .


there is a kite on 5 then this grid.

Code:
+---------------------+---------+-----------------+
| (29)  1369   19(2)  | 7  8  4 | 359   3569  356 |
| 8     349-7  (79)   | 6  2  5 | 379   3479  1   |
| 47    46-7   5      | 9  1  3 | 2     4678  68  |
+---------------------+---------+-----------------+
| 1     (25)   4      | 3  7  8 | 6     25    9   |
| 579   5789   9-7(8) | 2  4  6 | 135   1358  358 |
| 3     (28)   6      | 1  5  9 | 4     28    7   |
+---------------------+---------+-----------------+
| 257   (57)   3      | 4  9  1 | 8     67    256 |
| 6     1579   19-7   | 8  3  2 | 1579  1579  4   |
| 249   1489   19(28) | 5  6  7 | 139   139   23  |
+---------------------+---------+-----------------+

(7=5)r7c2 - (5=2)r4c2 - (2=8)r6c2 - (8)r5c3 = (8-2)r9c3 = (2)r1c3 - (2=9)r1c1 - (9=7)r2c3; r2c2, r5c3, r8c3 <> 7




Last edited by storm_norm on Mon Jul 26, 2010 1:31 am; edited 1 time in total
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Mon Jul 26, 2010 1:20 am    Post subject: Re: playr.co.uk extreme 7/25/10 Reply with quote
storm_norm wrote:
(5=7)r7c2 - (7=2)r4c2 - (2=8)r6c2 - (8)r5c3 = (8-2)r9c3 = (2)r1c3 - (2=9)r1c1 - (9=7)r2c3; r2c2, r5c3, r8c3 <> 7

Hmmm!!! I can't get past this part of your chain.
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Mon Jul 26, 2010 12:59 pm    Post subject: Reply with quote
Danny: It appears that you have re-arranged the digits of the first two bivalue cells in the chain.

Norm: I am confused about the chain deletions: you list three but the graph shows four and I don't see how r5c3<>7.

Ted
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Mon Jul 26, 2010 1:17 pm    Post subject: Reply with quote
Two steps.........

ANP(75=2)r7c12-(2=9)r1c1-(9=7)r2c3; r8c3<>7 which opens up a
xyz-wing (129)r1c3; r2c3<>9

Ted
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Tue Jul 27, 2010 12:35 am    Post subject: Reply with quote
Code:
 +--------------------------------------------------------------+
 |  29    1369  129   |  7     8     4     |  359   3569  356   |
 |  8     3479  79    |  6     2     5     |  379   3479  1     |
 |  47    467   5     |  9     1     3     |  2     4678  68    |
 |--------------------+--------------------+--------------------|
 |  1     25    4     |  3     7     8     |  6     25    9     |
 |  579   5789  789   |  2     4     6     |  135   1358  358   |
 |  3     28    6     |  1     5     9     |  4     28    7     |
 |--------------------+--------------------+--------------------|
 |  257   57    3     |  4     9     1     |  8     567   256   |
 |  6     1579  17+9  |  8     3     2     |  1579  1579  4     |
 |  249   1489  1289  |  5     6     7     |  139   139   23    |
 +--------------------------------------------------------------+
 # 78 eliminations remain

Almost discontinuous loop:

(9)r8c3                                                     - (9)r2c3   -or-
(9)r2c3 - (92=1)r1c13 - (1=7)r8c3 - (75=2)r7c21 - (2=9)r1c1 - (9)r2c3
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Tue Jul 27, 2010 12:45 am    Post subject: Reply with quote
daj95376 wrote:
Code:
 +--------------------------------------------------------------+
 |  29    1369  129   |  7     8     4     |  359   3569  356   |
 |  8     3479  79    |  6     2     5     |  379   3479  1     |
 |  47    467   5     |  9     1     3     |  2     4678  68    |
 |--------------------+--------------------+--------------------|
 |  1     25    4     |  3     7     8     |  6     25    9     |
 |  579   5789  789   |  2     4     6     |  135   1358  358   |
 |  3     28    6     |  1     5     9     |  4     28    7     |
 |--------------------+--------------------+--------------------|
 |  257   57    3     |  4     9     1     |  8     567   256   |
 |  6     1579  17+9  |  8     3     2     |  1579  1579  4     |
 |  249   1489  1289  |  5     6     7     |  139   139   23    |
 +--------------------------------------------------------------+
 # 78 eliminations remain

Almost discontinuous loop:

(9)r8c3                                                     - (9)r2c3   -or-
(9)r2c3 - (92=1)r1c13 - (1=7)r8c3 - (75=2)r7c21 - (2=9)r1c1 - (9)r2c3


Nifty ............

Ted
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