Petrosian: Move by Move - Engqvist "Live Edge Hardwood Boards" Various grades by difficulty level

Various grades by difficulty level (ELO 1800-2400)

a weapon which can be used against virtually every opening White can play

There is also a special training section with more than 1000 exercises for a user to solve as well as 400 training positions to be played against the built-in chess playing program Crafty

It makes pairings for Swiss system (and round robin) tournaments

There are discussions of all the key ideas and opening themes

Petrosian: Move by Move - Engqvist "Live Edge Hardwood Boards" Various grades by difficulty levelTigran Petrosian was a World Chess Champion and a true legend of the game. He was nicknamed "Iron Tigran" because of his incredible defensive skills that made him a formidable opponent who was virtually impossible to defeat. Petrosian was the master of restraint, prophylaxis and prevention. He could spot and defuse threats well before they were created, suck the life out an opponent's position and then seize a vice like grip on the game. In this book,