Practicing calculation of variations

White to play and win (Bauer-Abergel 2008)


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.

Decisions in chess

Choosing between two continuations. Eternal dilemna. Three positions to test your instinct when it comes to avoid or spot tactical tricks...

Position 1: White to play















Choose between:
1Bf7+
or 1.Qe6+ followed by 2.Rf7


Position 2: White to play















Choose between
1.Qe7 or
1 Qf5+

(Krasenkow-Cvitan 1997)
















Choose between
1 h3 or
1 Qb7

(Korchnoi-Spassky 1977)