In his books and videos – Garry Kasparov has often emphasized the skill of splitting the board into two halves. After that - an attack on the side where you have a numerical advantage is very likely to succeed, even if you are temporarily down in terms of overall material on the board. Once I was taught a good lesson in a blitz game, that illustrated this thesis.
aggro-Garryncha, ICC, 2003
White to move. Black just played 18…Nb4. The White pawn on e5 prevents Black’s Queen knight and Rook from taking any part in the action on the kingside. White quickly took advantage of this situation.
19. Bxh7!! Kxh7 20. Re4 (20. Bf6!! forces mate even faster) 20... Qxc2 21. Bf6!