Vasily Smyslov once said: "I will make 40 good moves and if you are able to do the same, the game will end in a draw."
His autobiography is titled A Sense of Harmony. He explains what he means by this when speaking on the work he did in those early days with his father:
"He instilled in me a love for so-called 'simple' positions, with the participation of only a few pieces, I was able to gain a deep feeling for what each piece is capable of, to sense their peculiarities, their strength and impotence in various different situations on the board, the limits of their capabilities, what they 'like' and what they 'don't like' and how they behave.
Such a 'mutual understanding' with the pieces enables a player to see that which often remains concealed to purely logical analysis. It is then that the innate ability of a player, which I call a sense of harmony, manifests itself."