Castling on opposite sides creates attacking possibilities for both players.
Initiate an attack with a pawn storm.

r1bq1rk1/1pn2pbp/p2ppnp1/2pP4/2P1P3/2N1B3/PPQNBPPP/2KR3R w - - 0 1
Castling on opposite sides creates attacking possibilities for both players.
Initiate an attack with a pawn storm.
r1bq1rk1/1pn2pbp/p2ppnp1/2pP4/2P1P3/2N1B3/PPQNBPPP/2KR3R w - - 0 1