cro777: The decisive moments of the game came in the endgame. GM Parimarjan Negi thoroughly analyzed this endgame in the Tournament Bulletin (World Chess): "The turning point was probably when Bela Khotenashivili overlooked a beautiful pawn sacrifice by her opponent, Jan Jodilyn Fronda, in a king-and-pawn endgame." Position after 31.Kxf4
 click for larger view31…Ke6? This was the decisive mistake. (The correct move was 31…Kd6 and with best mutual play the game would have ended in a draw). Why did Khotenashvili commit this error? What was the idea behind this move? "In the diagram position, Black's plan is based on infiltrating White's kingside with her king, while White isn't able to do anything on the queenside. For this to work, Black must not play d4 because then White's king can be perfectly placed on e4 to prevent the Black king's entry. The only way to stop White forcing Black to play d4 with either Ke5 or Kf5 was to play 31...Ke6. It makes perfect sense but she missed the pawn sacrifice 32.b4!" Khotenashvili probably only calculated 32.Ke3 thinking she was winning. "32.Ke3 c5 33.Kd3 Kf5 34.Ke3 Kg5 and Black should win, although she still needs to perform some gymnastics with the king:
 click for larger view35.h3 Kf6 36.h4 h5 37.Kd3 Kf5 38.Ke3 Ke5 39.f4+ Kf5 40.f3 d4+ etc" http://worldchess.com/2016/09/04/to... |