Difference between revisions of "Finned Fish"

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== How it works ==
 
== How it works ==
 
Here is an example of a Finned X-Wing:
 
Here is an example of a Finned X-Wing:
[[File:Finnedxwing.pnh|300px]]
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[[File:Finnedxwing.png|300px]]
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The four cells marked '''X''' would be an [[X-Wing]] if the candidate in the cell marked '''F''' were not present. So either there is an X-Wing, or the candidate in '''F''' is true. In both cases, the starred cells cannot contain a candidate for this digit. We can eliminate those candidates.
 
The four cells marked '''X''' would be an [[X-Wing]] if the candidate in the cell marked '''F''' were not present. So either there is an X-Wing, or the candidate in '''F''' is true. In both cases, the starred cells cannot contain a candidate for this digit. We can eliminate those candidates.
  

Latest revision as of 03:56, 4 June 2020

Finned Fish is a variety of fish that has extra candidates in a single box. Like regular fish, it is a single-digit solving technique.

The same names are used for the different sizes:

Finned X-Wing
Size 2
Finned Swordfish
Size 3
Finned Jellyfish
Size 4

How it works

Here is an example of a Finned X-Wing:

Finnedxwing.png

The four cells marked X would be an X-Wing if the candidate in the cell marked F were not present. So either there is an X-Wing, or the candidate in F is true. In both cases, the starred cells cannot contain a candidate for this digit. We can eliminate those candidates.

The F cell is known as the fin. In this example, there could also be a candidate in r5c3. This would be called a big fin, but the effects are the same.

See also