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
In one game it is too difficult to play both for win and draw simultaneously.
Mihail Tal 1969
There was a moment at the beginning when the machines were a positive, but lately we’ve being passing to the other extreme. Now it seems that a move isn’t good unless the machine says so.
Veselin Topalov 2016
First-class players lose to second-class players because second-class players sometimes play a first-class game
Siegbert Tarrasch
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
“Chess is the struggle against the error.”
Johannes Zukertort