Black to Play 21. ...? Can you play like the 12th Women's World Chess Champion Alexandra Kosteniuk?

Friday-night chess puzzle is all about converting a positional advantage into a material one Chess Queen Alexandra Kosteniuk style. The 12th World Chess Champion was up against a fine player in the 2001 Women’s World Chess Championship. Figure out a winning plan for Black in the position and the 21st move for Black. Replay the game with Chess King for the full game and answer.

Hoang Thanh Trang (HUN) (2439) – Kosteniuk Alexandra (RUS) (2455)

Result: 0-1
Site: Moscow (Russia)
Date: 2001
[…] 1.d4 d5 2.c4 e6 3.¤f3 c6 4.e3 ¤f6 5.¤c3 ¤bd7 6.¥d3 dxc4 7.¥xc4 b5 8.¥e2 a6 9.O-O c5 10.d5 ¤b6 11.dxe6 ¥xe6 12.£c2 £c7 13.e4 ¥e7 14.¥g5 O-O 15.e5 ¤fd5 16.¥xe7 £xe7 17.¥d3 h6 18.¥e4 ¦ad8 19.¤xd5 ¥xd5 20.¦fd1 ¥xe4 21.£xe4 £e6 22.b3 ¤d5 23.¦dc1 ¦c8 24.¦c2 ¦fd8 25.¦d1 ¤b4 26.¦cd2 ¦xd2 27.¦xd2 c4 28.bxc4 £xc4 29.£xc4 bxc4 30.¤e1 c3 31.¦d1 c2 32.¦c1 ¦d8 33.¤xc2 ¤xc2 34.¢f1 ¦d2 35.¦b1 a5 36.g3 ¤d4 37.¦b8+ ¢h7 38.¦d8 ¢g6 39.a4 ¤f3 40.¦a8 ¦d5 41.¦a6+ ¢f5 42.¢e2 ¤xe5 43.f4 ¤c4 44.¦c6 ¦d2+ 45.¢f3 ¦d3+ 46.¢e2 ¦e3+ 47.¢f2 ¦c3 48.¦c7 ¤d6 49.¦a7 ¢e4 50.¦xa5 ¦c2+ 51.¢e1 ¦xh2 52.¦e5+ ¢f3 53.¦d5 ¤e4 54.¦d3+ ¢g4 55.¦a3 ¤xg3 56.a5 ¦e2+ 57.¢d1 ¦e7 58.a6 ¦a7