“Oh, what a difficult job it was, to drag out of the marsh the hippopotamus!“

“ I will never forget my game with GM Vasiukov on a USSR Championship. We reached a very complicated position where I was intending to sacrifice a knight. The sacrifice was not obvious; there was a large number of possible variations; but when I began to study hard and work through them, I found to my horror that nothing would come of it. Ideas piled up one after another. I would transport a subtle reply by my opponent, which worked in one case, to another situation where it would naturally prove to be quite useless. As a result my head became filled with a completely chaotic pile of all sorts of moves, and the infamous “tree of variations“, from which the chess trainers recommend that you cut off the small branches, in this case spread with unbelievable rapidity. And then suddenly, for some reason, I remembered the classic couplet by Korney Ivanović Chukovsky: “Oh, what a difficult job it was. To drag out of the marsh the hippopotamus“. I do not know from what associations the hippopotamus got into the chess