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
Looks like I’m going to raise the average age of the field and lower the average rating!
Garry Kasparov 2017
I spend hours playing chess because I find it so much fun. The day it stops being fun is the day I give up.
Magnus Carlsen
” Chess is a sport. A violent sport.”
Marcel Duchamp
” Chess is most certainly not my life.”
Tony Miles
Some twenty years ago an English journalist complained that in sports, only chess and marbles were above suspicion. One wonders what has happened in the world of marbles.
Hans Ree