Chess Digital, 2019.
In this Hedgehog Masterclass Ivan Sokolov explains (in an easy to understand structure) the most common plans for White and Black (and how to counter them). As seen on the diagram positions examined are with white pawn on e4 and bishop developed to e2. White plans involving queenside castle or a brutal kingside pawns roll (like in Sicilian) are also examined. PGN for download contain 15 illustrative examples. Hedgehog positions are (for the both sides) difficult to play. Knowing the plans is important, but (implementing them) timing is everything! This video should help viewers improve their knowledge of those complex positions.