Scott Tortorice
Senior Member
I thought this was apropos:Most of my games have been won or lost because of one side getting a piece or two up. But these three games have really been the first time i've seen very small advantages end up being huge in the end game.
At a lecture that he gave in 1990 at the first session of the Yusupov-Dvoretsky school for gifted young chess players, master Alexei Kosikov wisely remarked that "any exchange in a chess game is a kind of business deal. You offer your product, you're offered something else, and each side tries to extract some kind of benefit from that." This is worth repeating often in order to carry out the exchange in the most favorable way for you.