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rh110811

 
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
PostPosted: Tue Nov 08, 2011 7:17 am    Post subject: rh110811 Reply with quote
Code:
 *-----------*
 |...|.68|..3|
 |..5|..1|9.8|
 |..6|.2.|51.|
 |---+---+---|
 |...|..5|.2.|
 |..7|.9.|6..|
 |.3.|6..|...|
 |---+---+---|
 |.61|.8.|7..|
 |7.3|1..|8..|
 |5..|73.|...|
 *-----------*
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Tue Nov 08, 2011 5:30 pm    Post subject: Reply with quote
XY-Wing (234); r5c4<>4, + pincer transport; r5c6<>4
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
PostPosted: Tue Nov 08, 2011 5:42 pm    Post subject: Reply with quote
Code:
 *-----------------------------------------------------------*
 | 149   149   49    | 5     6     8     | 2     7     3     |
 | 23    27    5     | 34    47    1     | 9     6     8     |
 | 38    78    6     | 39    2     379   | 5     1     4     |
 |-------------------+-------------------+-------------------|
 | 6     149   49    | 8     147   5     | 3     2     79    |
 | 24    5     7     | 234   9     234   | 6     8     1     |
 | 1289  3     28    | 6     17    27    | 4     5     79    |
 |-------------------+-------------------+-------------------|
 | 249   6     1     | 249   8     249   | 7     3     5     |
 | 7     249   3     | 1     5     2469  | 8     49    26    |
 | 5     2489  28    | 7     3     2469  | 1     49    26    |
 *-----------------------------------------------------------*
Connected strong links on same digit to a single cell means set the digit!

(8)r9c2=(8-2)r9c3=(2)r6c3-(2=7)r6c6-(7)r3c6=(7-8)r3c2=(8)r9c2 => r9c2=8
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Tue Nov 08, 2011 8:44 pm    Post subject: Reply with quote
Quote:
Connected strong links on same digit to a single cell means set the digit!

(8)r9c2=(8-2)r9c3=(2)r6c3-(2=7)r6c6-(7)r3c6=(7-8)r3c2=(8)r9c2 => r9c2=8

I assume you mean the SL's on 8 in c2 and r9? Does that pattern generally mean that the common cell can be solved?

Just trying to follow along step by step, it seems to boil down to the apparent contradiction:

If r9c2<>8 then r9c2=8.
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
PostPosted: Tue Nov 08, 2011 9:24 pm    Post subject: Reply with quote
Marty R wrote:
Just trying to follow along step by step, it seems to boil down to the apparent contradiction:

If r9c2<>8 then r9c2=8.
It is a discontinous nice loop where the two strong links at r9c2 is to point of discontinuity. 8 cannot be false in r9c2,

I like this pattern because I can see where the strong links join easily. If I can connect them with an AIC I have solved the cell they are joined to. Breaks a lot of puzzles for me.
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