dailysudoku.com

[keith]

Today's Brain Bashers' has an interesting pattern of clues. A VH, about.

[Mogulmeister]

A nice puzzle - thanks Keith

[tlanglet]

First, a Type 3 UR58 in r19c23 forms subset 237 deleting 7 from r3c1. This results in the following code.

[Mogulmeister]

(wrong thread - oops)

[Luke451]

Ted, I've seen your "funny xyz-wing" called a "kraken cell," among other things.

[Mogulmeister]

What type of fish is a skyscraper ?

[daj95376]

[Luke451]

[daj95376]

IMHO, the Sudopedia article that mentions Skyscraper under the definition of turbot fish is incorrect. Only one variation of the Skyscraper pattern fits as a turbot fish pattern. The general Skyscraper pattern would need four turbot fish to account for the four possible eliminations.

Similarly, the 4-cell Sashimi X-Wing pattern would need two turbot fish to account for the two possible eliminations. There is no mention in the Sudopedia article of a link between a turbot fish and a Sashimi X-Wing.

Thus, 2x 4-cell Sashimi X-Wing patterns can account for all four eliminatons in the general Skyscraper pattern.

Finally, one 4-cell single-digit chain can account for all four elimination in the general Skyscraper pattern. If I recall correctly, this is how Havard presented the general Skyscraper pattern. However, he did acknowledge its similarity to the turbot fish pattern. A similarity that many people have taken to mean equivalent.

Rambling and Regards, Danny

[tlanglet]

[keith]