Here is a recent game of GM Peter Acs played in the Austrian TCh. White gains a lead in development and manages to get a strong attack against black’s uncastled king.

Acs,Peter (2586) – Neubauer,M (2440)
3…Nd2 a6[C03]
TCh-AUT 2012–13 Graz AUT (6.4), 19.01.2013

Position 1
Black is still uncastled. How should white exploit this?

White to Play