Starting with a piece sacrifice was inaccurate: 14.Ndxb5 axb5 15.e5 b4! leads to unclear consequences.

If 14...dxe5 15.Ndxb5 Qxd2+ 16.Rxd2, little changes – the queenside pawn armada decides the game.

15...axb5 16.Bxc5 Nc6 17.Bxd6 Bxd6 18.Qxd6 Qxd6 19.Rxd6 b4 20.axb4 also leads to a winning position for White, although it prolongs the game somewhat.

White has a safe king and an attack, everything he could want.

Black resigned.

White has already mobilised almost all of his forces, whilst Black is some way behind with his development. The sacrifice on d5, followed by play on the e-file, is tempting, but before playing it, White first prepares a target on the queenside, where the black king will soon end up.

If 10...bxa4, 11.Nd5 gains further in strength.

If Black declines the knight, then after 11...Nxd5 12.exd5 e5 13.a5, the pawn on b4 is cut off from its own camp and will be lost.

Playing in the centre with 18.Rad1 also looks good, retaining the possibility of transferring the rook to the queenside via d4.

21...Ra7 22.Rb7 Rxb7 23.cxb7+ and Qxa6.