Aronian-Karjakin reloaded
A spectacular variation from the first round of the Final Masters in São Paulo. White (to play) is a rook up, but Black threatens to demask his queen-bishop battery. Which evaluation holds true?
A) White checkmates by force;
B) there will be a perpetual check;
C) Black's king escapes, whereupon the clearing of the long diagonal decides for him.
Solution