Which pattern is described as tiger-striped and is hard to find in Chihuahuahuas compared to larger breeds?

Answer

Brindle

Brindle is often described as a tiger-striped pattern that is quite hard to find in Chihuahuahuas, although it is common in larger breeds.

Which pattern is described as tiger-striped and is hard to find in Chihuahuahuas compared to larger breeds?
rareDogtypebreedChihuahua