1.?
White has a decisive advantange but there's still room for errors.Here, instead of letting you guess the best move, I will providethe candidate moves and the analytical work consists in going through eachvariation and deciding which one works and which one doesn't.
I identified 4 candidate moves :
A) 1 Qg7+
B) 1 Rh8+
C) 1 Nh7+
D) 1 Nd7+
Analyze each of them in the order you like and determine the validity of each one.Good Luck !
This game was declared the best one of that tournament.
