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BBNB puzzle

 
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wapati



Joined: 10 Jun 2008
Posts: 472
Location: Brampton, Ontario, Canada.
PostPosted: Fri Apr 17, 2009 10:20 pm    Post subject: BBNB puzzle Reply with quote
I see a finned sword, and a big whack of other methods.

Chew on this?

Code:
. . .|4 . .|. 7 .
. . .|. 5 1|. . 3
. . .|2 9 .|5 . 8
-----+-----+-----
6 3 .|. . .|. . .
. 7 .|1 . 2|. 4 .
. . .|. . .|. 1 6
-----+-----+-----
7 . 5|. 1 4|. . .
1 . .|8 2 .|. . .
. 2 .|. . 7|. . .
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storm_norm



Joined: 18 Oct 2007
Posts: 1741
PostPosted: Sat Apr 18, 2009 4:55 am    Post subject: Reply with quote
w-wing {5,9} stong links on 5 in box 8 removes 9 from r4c8
finned x-wing {5} removes 5 from r9c9
xyz-wing {2,4,9} in box 4 removes 9 from r5c3

gets the grid to here...

Code:
.------------------.------------------.------------------.
| 3     5    A29   | 4     8     6    |B129   7    C129  |
|K28-9  689   269  | 7     5     1    | 4    D29    3    |
| 4     1     7    | 2     9     3    | 5     6     8    |
:------------------+------------------+------------------:
| 6     3     1    | 59    4     589  | 2789 E28    2579 |
|J59    7     8    | 1     6     2    | 3     4     59   |
|I259  H49   G249  | 3     7     589  |F89    1     6    |
:------------------+------------------+------------------:
| 7     689   5    | 69    1     4    | 2689  3     29   |
| 1     46    3    | 8     2     59   | 67    59    47   |
| 89    2     469  | 569   3     7    | 1689  589   149  |
'------------------'------------------'------------------'

(9=2)A - (2)BC = (2)D - (2=8}E - (8=9)F - (9)GHI = (9)J; K <> 9
this can be shortened to this: (9=2)D - (2=8}E - (8=9)F - (9)GHI = (9)J
FYI
-------

Code:
.------------------.------------------.------------------.
| 3     5     29   | 4     8     6    | 129   7     129  |
|A28    689   269  | 7     5     1    | 4    B29    3    |
| 4     1     7    | 2     9     3    | 5     6     8    |
:------------------+------------------+------------------:
| 6     3     1    | 59    4     589  | 2789 C28    2579 |
| 59    7     8    | 1     6     2    | 3     4     59   |
| 259   49    249  | 3     7     589  | 89    1     6    |
:------------------+------------------+------------------:
| 7     689   5    | 69    1     4    | 2689  3     29   |
| 1     46    3    | 8     2     59   | 67    59    47   |
|E-89   2     469  | 569   3     7    | 1689 D589   149  |
'------------------'------------------'------------------'

M-wing to finish...(8=2)A - (2)B = (2-8}C = (8}D; E is not 8
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