The Hedgehog is not just an opening, it is a system. A system that can be used against 1 c4, against 1 e4 and also 1 d4. Some players, such as the Swedish Grandmaster Ulf Andersson, appear to play very little else with the black pieces.
Black’s pieces curl up behind a row of pawns on the third rank and invite White to attack – at which point they spring out from behind the barricades to give the aggressor a nasty shock. The Hedgehog can easily transform into a tiger... This is modern chess.
Minimum: Dual Core, 2 GB RAM, Windows 7 or 8.1, DirectX11, graphics card with 256 MB RAM, DVD-ROM drive, Windows Media Player 9, ChessBase 14/Fritz 16 or included Reader and internet access for program activation. Recommended: PC Intel i5 (Quadcore), 4 GB RAM, Windows 10, DirectX11, graphics card with 512 MB RAM or more, 100% DirectX10-compatible sound card, Windows Media Player 11, DVD-ROM drive and internet access for program activation.