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
If I’m thinking for more than 20 minutes about one move, it’s usually a waste. Sometimes you can come up with some amazing solution but most of the time you just end up looping: you consider a move, you reject it, then you’re desperate, you come back to the move, you don’t remember why you rejected it, you have to make a move so you make it – then your opponent replies and you remember why you rejected it. The longest wait I ever did between moves was one hour and five minutes – and the move was horrible.
Magnus Carlsen 2016
Good players actually use their long-term memory much more than inexperienced players, who use their short-term memory. Good players try to recall patterns.
Magnus Carlsen 2016 2016
Chess is a fairy tale of 1001 blunders.
Savielly Tartakower
In chess,honestly,nobody cares how beautiful you play,if Morphy would be 2710 today,he would not get a single invitation.
Teymur Rajabov 2017
People knew about 110 years of chess history. Nowadays, nobody is able to tell you the name of the world champion of 2000.
Anatoly Karpov 2005