Before taking on c4, Black creates new weaknesses in the enemy camp.

Preparing a check on d3. Black is clearly better.

Softening up the black pawns on e4 and f5.

1...g6?! 2.gxf5 gxf5 3.Bh3 , followed by Kh1 and Rg1+, the black king faces big trouble.

Eliminating the most active of Black's minor pieces.

With a sound extra pawn, White went on to win.

Preparing ...Nc7 and ...b7-b5 with queenside activity.

7.cxb5? axb5 8.Nxb5 Nxb5 9.Bxb5 Rxa2 is very bad for White.

Closing the doors for White's kingside attack. From now on a knight on f5 can always be swapped off, whereas Black has interesting attacking prospects on the opposite flank. The game continued: