ZZLL
From Speedsolving.com Wiki
The ZZ Last Layer is the subset of ZBLL in which two opposite LL edges are correctly permuted. It is used to solve the last layer in the ZZ-b variant of the ZZ Method. Compared with ZBLL, ZZLL has only 167 cases which can be completed with a minimum of 80 algorithms assuming mirrors and inverses are used. ZZLL also serves as a useful transition between COLL/EPLL and full ZBLL.
