127.0.0.1: Created page with "A '''Sashimi Swordfish''' is a Finned Swordfish that has no candidate for the underlying Swordfish in the box containing the fin. This is only one member..."

2021-10-24T19:40:19Z

Created page with "A '''Sashimi Swordfish''' is a Finned Swordfish that has no candidate for the underlying Swordfish in the box containing the fin. This is only one member..."

New page

A '''Sashimi Swordfish''' is a [[Finned Swordfish]] that has no [[candidate]] for the underlying [[Swordfish]] in the [[box]] containing the [[fin]].

This is only one member of the large family of [[fish]] patterns. The Sashimi Swordfish uses 3 [[row]]s, 3 [[column]]s and a box. Other sizes of [[Sashimi Fish]] are [[Sashimi X-Wing]] and [[Sashimi Jellyfish]].

== Sashimi Swordfish in the Rows ==

: Consider the candidates for a single digit. When all candidates in 3 rows are located in 3 columns and a box which contains at least one of these columns, you may remove all candidates from this box which are located on one of the 3 columns. A Sashimi Swordfish does not have any candidates in the extra box which are located on the intersection of a defining row and a covered column.

[[image:sashimi swordfish rc.png]]

Either one of the '''X''' candidates in box 8 can be present. If there were a candidate in '''r8c5''', this would be a Finned Swordfish.

=== Example ===

[[image:sashimi swordfish rcx.png]]

Sashimi Swordfish for digit '''3''' in rows 3,5,7 and columns 1,6,9 with a [[fin]] in box 8.

== Sashimi Swordfish in the Columns ==

: Consider the candidates for a single digit. When all candidates in 3 columns are located in 3 rows and a box which contains at least one of these rows, you may remove all candidates from this box which are located on one of the 3 rows. A Sashimi Swordfish does not have any candidates in the extra box which are located on the intersection of a defining column and a covered row.

[[image:sashimi swordfish cr.png]]

This diagram shows that each defining column can have 2 or 3 candidates, and the defining columns that intersect the extra box can have only a single candidate that belongs to the underlying Swordfish.

=== Example ===

[[image:sashimi swordfish crx.png]]

Sashimi Swordfish for digit '''4''' in columns 3,5,7 and rows 2,8,9 with the fin in box 2.

== Cascading Locked Candidates ==

When there are 2 secondary lines present in the box with the fin, up to 4 candidates can be eliminated. As a result, all remaining candidates in this box will be located on a single row or column (row 1 in the diagram). This triggers a [[Locked Candidates]] move that causes additional eliminations on this line.

[[image:sashimi swordfish lc.png]]

== See Also ==
* [[Fish]]
* [[Sashimi Fish]]
* [[Sashimi X-Wing]]
* [[Sashimi Jellyfish]]
* [[Swordfish]]
* [[Finned Swordfish]]

[[Category:Solving Techniques]]
[[Category:Single-Digit]]

Sashimi Swordfish - Revision history

127.0.0.1: Created page with "A '''Sashimi Swordfish''' is a Finned Swordfish that has no candidate for the underlying Swordfish in the box containing the fin. This is only one member..."