Tactic Toolbox Grunfeld - Michal KrasenkovTactic Toolbox Grunfeld by Michal Krasenkov If you want to know an opening, you should understand its typical positional ideas and plans. It is also good to remember variations. But this is not enough. You should also know the typical tactical motifs or your opening. This trio of strategy, variations, and tactics forms a conscious and subconscious image in the mind and helps you to find the right moves. The Grunfeld Defense is an active opening, which