The Piano Sonata No. 2 in B minor, Op. 61 by Dmitri Shostakovich, the last of his piano sonatas, was composed in early 1943. It was his first piano composition since the 24 Preludes, Op. 34 from 1933 and his second attempt at composing a piano sonata in the key of B-minor. John Jonas Gruen said that there was "nothing obscure or technically impenetrable" about this sonata, but that "something disquieting—something faintly obsessive—emerges from its deceptively simple structure."