Various Static Patterns
The only purpose of this page is to provide a short index of a small number of patterns that are grouped on the solver under 'Various Static Patterns'. These are relatively rare and rather than extend the strategy list too much with too many rare (but interesting) strategies, I'm linking to this page. They are also very roughly in the same difficulty degree and are quite low cost (search-wise) so no harm in grouping them.
Fireworks Strategy
SK Loops
Twinned XY-Chains