Frag Rattmann, Rattmann hat ...

Encyclopaedia of Chess Openings chain is made up of innumerable chains - games. Each game has the precisely defined place in this chain, which depends on estimation of a new move in opening, while the complete value of the book depends on the correctness of these estimations.

• without 1. d4, 1. e4
• 1. d4 without 1... d5, 1... Nf6
• 1. d4 Nf6 without 2. c4
• 1. d4 Nf6 2. c4 without 2... e6, 2... g6

The basis of ECO are the games from Chess Informant annotated by the best players of today and the estimations given by them. They are guarantee and filter through which all the openings comprised by the volume A - 4th edition, have passed through: English Openings, Dutch Defence, Benoni, Reti, Volga Gambit…