Continued from Part 5. This game is a good example of a practical endgame that goes through several exchanges, but White’s pawn weaknesses persist throughout the transitions and eventually lead to a loss. On move 32 White missed what was probably her best chance to build a fortress. Again, sacrificing a pawn for strategic purpose is a good idea in these endings. As it happened, the position on move 39 reminds us of the principle of two weaknesses.
(8) Umanskaya Irina (2300) - Lesiege Alexandre (2580)
Cappelle-la-Grande op (2), 20.02.2000
22.Rhd1 c5 [The greedy 22...Rxc4 ? loses a piece after 23.Re1 ! 23...Kf7 24.Bd2 Ra4 25.Ree8] 23.h4 h6 24.R1d3 g5 25.hxg5 hxg5 26.Bd2 b6 27.Re3 Rxe3 28.Bxe3 Diagram
With only one pair of rooks left, the pin is not so dangerous. The 'c4' pawn is weak, however, and later it can be a good target for Black's bishop. 28...Kg6 29.Kd2 Bb7 30.Rxa8 Bxa8 31.f4 g4 Diagram
32.Bf2 [32.f5+ ! ? 32...Kxf5 33.Bf4 deserved attention, then the bishop would be able to protect g3 from the whole 'b8-h2' diagonal. 33...Ke4 (33...Bb7 34.Kd3 Be4+ 35.Ke3 Bb1 36.Bb8 a6 37.Ba7 Bxa2 38.Bxb6 Bxc4 39.Bxc5 0.00) 34.Ke2 Bb7 35.Bb8 Ba6 (35...a5 36.Bc7 Ba6 37.Bxb6 Bxc4+ 38.Kf2) 36.Bxa7 Bxc4+ 37.Kf2 Bxa2 38.Bxb6 0.00] 32...Kf5 33.Ke3 Bg2 34.a3 Bf1 35.Be1 Bxc4 Now White is down a pawn and the White pawns on g3 and a3 are very weak. 36.Bf2 Ke6 37.Ke4 f5+ 38.Ke3 Kd5 39.Kd2 Diagram
39...Bf1 The black king threatens to penetrate both to a3 and to g3. The white king cannot keep the opposition because the black bishop controls crucial squares. Thus White's fortress collapses before it was built. 40.Ke3 [40.Kc2 Ke4 41.Kd2 Kf3 42.Be1 c4 43.Kd1 (43.a4 a5) 43...Bd3 44.Kd2 Be2 45.Kc2 Ke3 46.Kc1 Bf3 47.Kc2 Ke2-+] 40...Kc4 41.Kd2 Kb3 42.Be3 Kxa3 Diagram
43.Kc2 Bc4 44.Bd2 Ka4 45.Kb2 Kb5 46.Be3 Kc6 47.Kc2 Kd5 48.Bd2 Ke4 49.Kc1 Kf3 50.Be1 Ke2 0-1
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