Black to move. Can Black save this game? How should Black proceed?
This was an actual position between Carlsen and Cheparinov this morning. This is the position after 57.Kxa3
Chess Daily News from Susan Polgar
Susan Polgar
December 7, 2007
Chess Improvement, Chess Puzzles, General News, Major Tournaments
10 Comments
I think that e5 will win here for black.
According to Rogozenko, this is deep position, and after i read his analysis (or tablebases) i have a feeling this is very hard for human to crack during the game.
Basically, black has to hurry towards white pawn and protect his pawns from white King.
Of course, Black can only achieve a draw here.
http://www.k4it.de/index.php?topic=egtb&lang=en …
1.Kb3 e5
2.Kc2 {only winning option}
2. … Ke4 {forces an ‘only’ reply}
3.Kd2 {is the only reply}
3. … Kf4 {g3 too early}
4.Be2 {costing Blk 2 moves} Kf4
5.c4 {cuts Blk options} g3
6.Ke1 {best, look clear from here} Ke3
7.Kf1 {not Bf1} Kd4 {what else?}
8.Kg2 Kc5
9.Kxg3 Kd4
10.Kf3 Kc5 {not e4 yet}
11.Ke4 Kd6
12.Bf1 and the bP is gone
Interesting endgame
Good analysis, but it’s Black to move. A touch of the Kamsky’s!
It is black’s turn to play. May be 1…e5 2.Be8 e4 and it is white who is trying for the draw
In fact, this is position 57 with Black to move. Bleicher’s site tells us that Ke4, Kf4 or even e5 would have drawn.
In the game, 57…g3 (not the slowest way to lose) left 58.Bd5 as the route to win, but White played 58.Bf1.
Now Black had 58…Ke4 or Kf4 to draw but played 58…e5
This position does not qualify as literally a Chess Study (with a capital S) as it does not meet the technical requirements for one such, or have great aesthetic quality.
But it is worthy of study with a small ‘s’.
In the game, errors continue…
59.Kb3?? {should have been Bg2!!}
59…Kf4?? {should have been Ke4!!}
60.Bg2!! {ok} Ke3 {ok, best}
61.Kc4!! {ok} Kf2 {e4 was best}
62.Be4 {MC’s last 3 moves ok}
FYI
I checked with Toga II 1.3.4 (open source). That engine
declares the position a draw and the PV is the same as what you get from the tablebase.
Carlsen,Magnus (2714) – Cheparinov,Ivan (2670) [A48]
FIDE World Cup 2007 Khanty-Mansiysk (5.1), 06.12.2007
[Vohaul]
57… g3?
[57…Ke4! 58.Be6 g3 59.c4 g2 60.Bd5+ Kd4=;
57…e5 58.Bf1 Ke4= e.g. 59.Kb4 Kf3 60.c4 g3 61.c5 Kf2 62.c6 (62.Bh3 e4 63.c6 e3 64.c7 e2 65.c8Q e1Q+ 66.Qc3=) 62…Kxf1 63.c7 g2 64.c8Q g1Q=]
58.Bf1?
[58.Bd5! Kf4 59.Kb3 e6 60.Bh1+-]
58…e5?
[58…Ke4! 59.c4 Kd4 60.Kb4 e5 61.c5 Kd5 62.Bg2+ e4 63.Kb5 Kd4 64.c6 e3 65.Bh3 (65.c7 e2 66.c8Q e1Q=) 65…e2 66.c7 e1Q 67.c8Q Qb1+ =]
59.Kb3? …
[59. Bg2 Kf4 60.c4 Ke3 61.c5 e4 62.c6 +-]
59…Kf4?
[59…Ke4! 60.Bg2+ Kd3 61.c4 e4 62.c5 e3 63.Bf1+ e2 64.Bxe2+ Kxe2 65.c6=]
60.Bg2 Ke3
61.Kc4 Kf2
62.Be4 1–0
greetings
(btw – it is not that difficult, to find 1… Ke4 in the given position …)
just my two pence