300 Most Important Chess Positions - Thomas Engqvist300 Most Important Chess Positions by Thomas Engqvist Study five a week to be a better chess player An International Masters guide to the essential positions and strategies in chess. A great little book of understanding the most important chess positions in the opening of a game, the middle game and the endgame. It cuts to the chase on the most useful positions at all those stages. Perfect for players who want to reach a higher level but dont have