Mal abgesehen davon, daß Weiß bestimmt selbst den Gewinn irgendwo in der Eröffnung
ausgelassen hat, hätte HR nach den weißen Endspielfehlern noch einen Sieg rausquetschen
können? Er frug das USENET, und das orakelte wie folgt (ich lasse das Englisch mal
unübersetzt, es dürfte alles auch so verständlich sein):
Bonus: Hier klicken für deutsche Version
From: Claus-Jürgen Heigl / Newsgroups: rec.games.chess.analysis / Subject: Re: Fiendish
Pawn Endgame / Date: Wed, 18 Jun 2003 17:11:37 +0200 / Message-ID:
<3EF08129.E99C90DB@rz.uni-karlsruhe.de> (Header angegeben für die Google-Spezis)
Hauke Reddmann wrote:
> Thanks for your comments. Could anyone sum up the analysis (from the shown position) to
> make things clearer?
I´ll try. I assume the starting position is that with the black king on c7.
The short version is that this endgame involves a lot of calculation and the evaluation of
possible queen endgames.
In the long version I can only present the ideas in a hopefully better arranged way.
It´s obvious Black can´t make progress without getting the e-pawn going. White's counterplay
is based on his more active king position, and possible counterattacks on the queen- or
kingside, depending on what Black does. The winning idea is to queen the e-pawn while
letting White queen its a-pawn and win the queen ending. 44...Kd7 45.Kc5 Ke7 46.a4 f5
47.exf6+ Kxf6 48.a5 Ke5 49.a6 Kf4 50.Kc6 e5 51.Kb7 e4 52.Kxa7 e3 53.Kb6 e2 54.a7 e1Q
55.a8Q Qe3+ 56.Kb5 Qxh3. If the analysis Tobi and I did is correct, time is of the essence,
because otherwise the white king becomes too active. If Black takes the slow approach,
44...Kd7 45.Kc5 Ke8 46.a4 f5 47.exf6 Kf7 48.a5 Kxf6 White can prevent the Black king from
reaching e5. Black can't force White off d6 without giving White a favourable position on the
queenside. 49.Kd6! a6 50.Kc6 Ke7 (50...e5 51.Kd5) 51.Kb6 or 49...Kf7 50.a6 Kf6 51.Kc6 Ke7
52.Kb7. Black can sacrifice the e-pawn to get a superior king position but then White can
create enough counterplay even if his king position is inferior to Black's. This is one of the
really hard part to see, because it involves a clever counterattack by White on the kingside
(h4) quite a couple of moves ahead. 49...e5 50.Kd5 a6 51.Kc4 Ke6 52.Kc5 e4 53.Kd4 e3
54.Kxe3 Kd5 55.Kf3 Kc5 56.h4. If Black opts for speed (Kc7-d7-e7xf6) White has no choice:
if he doesn´t attack Black's queenside, he can't prevent the e-pawn from marching anyway and
Black will win by trading his advanced e-pawn against White's g and h pawns. White can
prevent the Black king from reaching e5 only for some time because Black has more waiting
moves with his a-pawn than White (if White doesn´t advance the a-pawn but instead moves
his king to d6 when Black captures f6). 45...Ke7 46.a4 (46.Kc6 f5 47.exf6 Kxf6 48.Kd6 a6) f5
47.exf6 Kxf6 48.Kd6 a5. So Black can force his king to e5. The good thing about this
endgame is that White has to play very carefully to not lose the endgame even if Black doesn't
play his best moves. So, after the Ke8-f7xf6 manouvre, the game was drawn if White did find
the best defense, which was blocking the black king from e5. Instead White chosed to
advance his a-pawn. 44...Kd7 45. Kc5 Ke8 46. a4 f5 47. exf6 Kf7 48. a5 Kxf6 49. a6 This
opened the possiblity of a race between the e-pawn and the a-pawn. Because both sides can
queen their pawns, calculation was necessary before if there is a forceful way to trade off
queens because with queens on board and equal material the game is likely a draw. There
was. 49...Ke7 50.Kc6 e5 51.Kb7 e4 52.Kxa7 e3 53.Kb6 e2 54.a7 e1Q 55.a8Q Qb4+ 56.Kc7
Qd6+ 57.Kc8 Qd8+ 58.Kb7 Qxa8+ White could also try to counterattack on the kingside
while giving up on his a-pawn but is one move too late. 51.Kd5 Kf6 52.Kc4 Ke6 53.Kc5 Kd7
54.Kd5 Kc7 55.Kxe5 Kb6 56.Kf6 Kxa6 57.Kg6 Kb6 58.Kxh6 a5 59.Kxg5 a4 60.Kh6 a3 61.g5
a2 62.g6 a1Q 63.g7 Qf6+ 64.Kh7 Qf5+
Fiendish is a good description of this endgame.
Claus-Juergen
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