Challenging the main defender of the e4-square.

After 5.Bxf5 Nhxf5 , followed by ...Ne4+, White also has a hard time.

After seizing the centre Black starts a flank attack.

A tactical oversight. White should have accepted long-term inferiority after 7.fxg5 fxg5 8.hxg5 Nxg5.

Black wins material, and soon the game as well.

Preparing Nd2-b3 in order to seize the protected square on c5. This is the best way to do it, since the temporary attack on the c6-pawn limits Black's replies.

By recapturing this way White keeps the c5-square under control and facilitates the attack on the c6-pawn.

Thanks to his superior pawn structure, White keeps a slight edge.

Preparing Rae1 to seize the open file.