Back-rank weaknesses

How could White win?

Solution

26.Bxb6 Qxb6 27.c7! and Black is lost: 27...Na6 28.Rc6 and White wins a piece or 27...Rxc7 28.Qxd5! and White wins even more because of the back-rank mate threat.

The game, however, continued 26.Be5 and White had only a slight advantage (0-1 in 44, Ari Ranta, Meri-Ratsut – Petr Veselý, LauttSK 2, JSM 11.2.2012).