Strategic mistake, Koons-Jiganchine, 2006

By playing 10..Bf2? I made a strategic mistake and decided to win material instead of finishing my development. I rather naively missed the fact that my remaining pieces would be hard to develop, and White king will be in no danger at all. It was much better to simply exchange the queens.

11. Kxf2 Qh4+ 12. g3 Qxc4 13. Qd6



compensation for the pawn is terrific. I was later extremely lucky to save the game.