6...0-0? 7.Bc5! Re8 8.Bb6 White wins material.

With a winning endgame.

Attacking White at his most vulnerable point, g2.

2.0-0? Bh3 Black wins material.

The rook couldn't move, e.g. 4.Rfe1 Rxf2! 5.Kxf2 Qe3#

A strong sacrifice that will leave the enemy king in trouble on the light squares.

Seizing the long diagonal in order to enhance the attack.

Preparing a decisive discovered check.

White resigned.