How much book do you need to know?

"The bare minimum is", said GM Andrew Soltis, "you need to know the traps that come up in your openings."

222 Opening Traps after 1.d4 is the title of a new book we just received, an up-to-date and thorough piece of work by two German GM's: Karsten M?ɬºller and Rainer Knaak.

M?ɬºller and Knaak have expanded the concept of a trap just a bit, and also include typical mistakes that are not the result of a line deliberately chosen by the one who sets the trap.

An important part of their book is devoted to "normal" looking moves which are met by unusual tactical blows.

This is a follow-up of their highly successful 222 Traps after 1.e4.