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Finned / Sashimi X - Wings:

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Finned / Sashimi X - Wings:

Postby strmckr on Sun May 10, 2009 3:32 am

Sashimi:

Code: Select all
/  /  N | / / / | / / N
.  .  . | . . . | . . .
.  .  . | . . . | . . .
--------+-------+-------
#  #  / | / / / | / / N
.  .  x | . . . | . . .
.  .  x | . . . | . . .
--------+-------+-------
.  .  . | . . . | . . .
.  .  . | . . . | . . .
.  .  . | . . . | . . .


Finned:
Code: Select all
/ / / N | / / / | / / N
.  .  . | . . . | . . .
.  .  . | . . . | . . .
--------+-------+-------
#  #  # | / / / | / / N
.  .  x | . . . | . . .
.  .  x | . . . | . . .
--------+-------+-------
.  .  . | . . . | . . .
.  .  . | . . . | . . .
.  .  . | . . . | . . .



KEY: '/' <=> cells void of candidate 'N'
'N' <=> cells with candidate 'N'; all are required
'#' <=> cells with candidate 'n'; where at least one N must be true.
"-X" <=> potential eliminations of candidate 'N'
Last edited by strmckr on Fri Jul 10, 2009 4:12 pm, edited 6 times in total.
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Re: Finned/ Sashimi X - Wings:

Postby strmckr on Sun May 10, 2009 3:36 am

Example: Sashimi on Columns:
Code: Select all
.---------------.------------.----------------.
| 4   1     5   | 7    39  2 | 8    369  36   |
| 29@  2369  369 | 8    1   4 | 279@  5  237  |
| 7   239   8   | 5    39  6 | 1    239  4    |
:---------------+------------+----------------:
| 1   8     2   | 6    4   3 | 5    7    9    |
| 5   39    39  | 1    8   7 | 26   4    26   |
| 6   4     7   | 2    5   9 | 3    8    1    |
:---------------+------------+----------------:
| 29@  7     1   | 39   6   5 | 4    23-9  8 |
| 8   569   469 | 349  2   1 | 679# 369  3567 |
| 3   2569  469 | 49   7   8 | 269# 1    256  |
'---------------'------------'----------------'


9 c17 r27 fr8c7 fr9c7 => r7c8<>9

example: Finned x-wing on rows
Code: Select all
.----------------------.---------------------.----------------------.
| 12379#   12379# 5    | 6     12347@   1279  | 147   8     1479    |
| 126789-3 12379  1289 | 2349  123478  12789 | 147   14679  145679  |
| 16789    4      189  | 9     178     5     | 2     3      1679    |
:----------------------+---------------------+----------------------:
| 1249     5      7    | 8     124     12    | 6     14     134     |
| 1248     12     6    | 7     9       3     | 5     14     148     |
| 148      1      3    | 45    145     6     | 9     2      1478    |
:----------------------+---------------------+----------------------:
| 2379@    8      4    | 1     2367@   279   | 7     5      2679    |
| 123579   12379  129  | 2359  235678  2789  | 1478  14679  1246789 |
| 12579    6      129  | 259   2578    4     | 3     179    12789   |
'----------------------'---------------------'----------------------'


3 r17 c15 fr1c2 => r2c1<>3
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Re: Finned / Sashimi X - Wings:

Postby lancehoch on Sun May 10, 2009 4:11 pm

In your first post there is no difference between what you have under finned and what you have under sashimi. Also, you have 4 symbols in the first box, top row.
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Re: Finned / Sashimi X - Wings:

Postby strmckr on Sun May 10, 2009 5:26 pm

{thanks for pointing out the typos}

there is a diffrence

a x wing has 4 corners.

Code: Select all
/ / / N | / / / | / / N
.  .  x | . . . | . . x
.  .  x | . . . | . . x
--------+-------+-------
/  /  N | / / / | / / N
.  .  x | . . . | . . x
.  .  x | . . . | . . x
--------+-------+-------
.  .  x | . . . | . . x
.  .  x | . . . | . . x
.  .  x | . . . | . . x


if a corner is missing but there is 2/1 candidae in a box on the same row/column you have a sashimi x-wing.

Code: Select all
/ / / N | / / / | / / N
.  .  . | . . . | . . .
.  .  . | . . . | . . .
--------+-------+-------
#  #  / | / / / | / / N
.  .  x | . . . | . . .
.  .  x | . . . | . . .
--------+-------+-------
.  .  . | . . . | . . .
.  .  . | . . . | . . .
.  .  . | . . . | . . .


if a corner is NOT missing but you have 2/1 extra digits in the same box one the row/column it is a finned x-wing

Code: Select all
/ / / N | / / / | / / N
.  .  . | . . . | . . .
.  .  . | . . . | . . .
--------+-------+-------
#  #  N | / / / | / / N
.  .  x | . . . | . . .
.  .  x | . . . | . . .
--------+-------+-------
.  .  . | . . . | . . .
.  .  . | . . . | . . .
.  .  . | . . . | . . .


they are similar and diffrent.
the elimination only occurs in the box that has the extra candidates.
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