White makes the interference to avoid a stalemate by allowing a fight to the opposite King, which is met by a discovered mate by the same white piece.
ECHESSPEDIA
Quotes of the Day
Some players lose ability to think independently and rely on computers completely.
Lajos Portisch 2012
First-class players lose to second-class players because second-class players sometimes play a first-class game
Siegbert Tarrasch
When I play well, I don’t win!
Maxime Vachier Lagrave 2017
Carlsen is paying far less attention to opening theory than his rivals, he is happy to go down paths that may offer no advantage yet have the benefit of dragging opponents out of their “openings book”. Once beyond the reaches of computer-aided openings, Carlsen starts to turn the screw.
Judith Polgar FT, 2014
The competition in the men’s tournament has grown massively over the past 20 years. Chess is becoming more and more popular, and there are no weak teams in the tournament any longer.
Andrey Filatov