A bstract We classify AdS 3 solutions preserving $$ \mathcal{N} N = (8 , 0) supersymmetry in ten and eleven dimensions find the local form of each them. These include ×S 6 solution [1] embeddings into 4 7 5 / ? k its IIA reduction within . More interestingly we superconformal algebras {\mathfrak{f}}_4,\mathfr...