  We introduce a type $B$ analogue of the nil Temperley-Lieb algebra in terms
of generators and relations, that we call the (extended) nil-blob algebra. We
show that this algebra is isomorphic to the endomorphism algebra of a
Bott-Samelson bimodule in type $\tilde{A}_1$. We also prove that it is
isomorphic to an idempotent truncation of the classical blob algebra.Thus we
provide strong evidence in favor of the recent Blob vs. Soergel conjecture.
