You read it here first (erm, almost):

While everyone is still talking about Cuil (the crappy new wannabe search engine with nice colours),   yesterday TechCrunch reported on the birth of a new search engine: Yuil. Now Yuil is dead.

Yuil (pronounced yule) was a short-lived Yahoo-powered mashup designed to look like Cuil.

Apparently the Yahoo Boss mashup — something of a search engine Frankenstein monster — was destroyed by its inventor.

Yuil was designed by Yahoo VP of Platforms, Sam Pullara. Yuil was a brilliant marketing move designed to show off the new Yahoo BOSS API. BOSS gives developers a high level of control over SERPs generated by Yahoo’s search engine.

The primary difference between the Yahoo Boss API, and the standard API-based engines is the ability to manipulate and reorder the results.

Just quit trying, Google is still raping every search engine around the interwebz.

Oh, and don’t forget: the ONLY thing Cool about Cuil.. is the image on THIS page.