Lev Polugaevsky said of him: I am convinced that any player, even the very strongest, can and should learn from his games (especially the Sicilians!). As regards his depth of penetration into the mysteries of the Sicilian Defence, for both sides moreover, it is doubtful if anyone could compare with Boleslavsky. He had a virtuoso feeling for the dynamics of the opening, and always aimed for a complicated and double-edged struggle, although by nature he was one of the most modest grandmasters with whom I have had the pleasure of rubbing shoulders.