OSP
From Speedsolving.com Wiki
OSP is a method for 2x2 speedsolving. The method OSP stands for:Orient 8 Corners , Seperation and Permutation, it starts off by Orient all 8 edges which contants about 200 algs then u seperate the corners to its color position using about 90-100 algs and you permute both layers using 6 PBL algorithms. It can also be used in 3x3 for corners as well.
