HEDGEHOG
A resilient structure, normally for Black, in which most of the pawns are placed on his third rank and the bishops are usually fianchettoed. The defence has been adopted by the likes of Mikhail Tal, Bent Larsen, Michael Adams, Garry Kasparov, Gata Kamsky, and Anatoly Karpov. In the 2009 Sergei Shipov has published a first volume on the defence, his book was highly recommended by Garry Kasparov. In the following example Black reaches the typical position after its 12th move. Similar positions can be reached in the Sicilian Defence or in the English Opening.