Trainers recommend to beginners to be careful with their own king and to castle as soon as possible. But at higher levels grandmasters can sense the danger of having the king in the centre much more precisely and in many cases the king in the centre is safe, which allows them to conduct fast flank attacks or to create a powerful centre. A big fan of such a strategy was Mikhail Botvinnik - he called it 'the delayed castling strategy'.
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.