Originally posted by TimmyBx
10...Qxa5!! is a brilliant Queen sacrifice deflecting the White Queen from her protection of the c2 square, threatening 11. Nc2#. There are no safe squares for the White Queen, and she will be lost or White will be checkmated.
Even very strong players have missed this type of tactic, such as in the game GM Alexander Yermolinsky (2654) -. IM Emory Tate (2 ...[text shortened]... d4 c5 2. d5 e6 3. Nc3 exd5 4. Nxd5 Ne7 5. Bg5 h6 6. Bh4 Qa5+ 7. c3 Nf5 8. Qa4 Qxa4 9. Nc7# 1-0,