Author: Robert Hyatt
Date: 05:51:19 07/31/01
Go up one level in this thread
On July 30, 2001 at 11:01:44, Ferdinand S. Mosca wrote:
>Hi,
>
>A position from Chess Informant vol. 80 in the Ending section has caught my
>attention.
>7k/4pq2/1p5p/p1p1P2P/P2p4/1P1P1Q2/2P3K1/8 b - - 0 1
>
>GM Glek of Germany in his analysis of his game recommended the following line.
>1...Qxf3+! 2.Kxf3 Kg7 3.Ke4 e6 4.Kf3 Kf7 5.Ke2 Ke7 6.Kd2 Kd7 7.c4 dxc3+ 8.Kxc3
>Kc7 9.d4 Kc6 10.Kc4 cxd4 11.Kxd4 b5 wins.
>
>In the actual game he played 1...Qg7 which could only draw.
>
>Perhaps he missed the better move at diagram 2, (3. e6 instead of 3. Ke4)
>diagram 2
>8/4p1k1/1p5p/p1p1P2P/P2p4/1P1P1K2/2P5/8 w - - 0 2
>[3.e6!! Kf6 4.Kf4 Kxe6 5.Ke4=],
>
>I made some modification for the program to solve, diagram 3.
>diagram 3
>6k1/4p3/1p5p/p1p1P2P/P2p4/1P1P1K2/2P5/8 b - - 0 1
>Is there any program that likes to play 1.. e6 with score favoring the black
>side. There seemed to be only two logical choices for black here, Kf7 and e6.
>
>Here is my main line:
>1...e6 [1...Kf7 2.e6+ Kxe6 3.Ke4=] 2.Ke2 Kf7 3.Kd2 Ke7 4.c3 dxc3+ 5.Kxc3 Kd7
>6.d4 Kc6 7.Kc4 cxd4 8.Kxd4 b5 wins
>
>Regards,
>Dinan
Here is crafty's output. Kf7 seems like a draw. e6 is slowly getting
better for black:...
18-> 19.41 0.00 1. ... Kf7 2. Ke4 e6 3. Kf3 Ke8 4.
Ke2 Kd7 5. Kf3 Kc6 6. Ke4 Kd7 7. Kf4
Kc6 8. Ke4
19 29.01 0.00 1. ... Kf7 2. Ke4 e6 3. Kf3 Ke8 4.
Ke2 Kd7 5. Kf2 Kc6 6. Kf3 b5 7. axb5+
Kxb5 8. Ke2 Kb6 9. Kf2 Kc6 10. Kf3
Kb5
19-> 29.89 0.00 1. ... Kf7 2. Ke4 e6 3. Kf3 Ke8 4.
Ke2 Kd7 5. Kf2 Kc6 6. Kf3 b5 7. axb5+
Kxb5 8. Ke2 Kb6 9. Kf2 Kc6 10. Kf3
Kb5
20 1:02 0.00 1. ... Kf7 2. e6+ Kxe6 3. Ke4 Kd6 4.
Kf5 e6+ 5. Kg6 Ke5 6. Kxh6 Kf6 7. Kh7
Kf7 8. Kh8 Kf8 9. Kh7 Kf7
20 1:08 -0.06 1. ... e6 2. Ke4 Kf7 3. Kf3 Ke8 4.
Ke2 Kd7 5. Kf2 Kc6 6. Kf3 <HT>
(2) 20-> 1:08 -0.06 1. ... e6 2. Ke4 Kf7 3. Kf3 Ke8 4.
Ke2 Kd7 5. Kf2 Kc6 6. Kf3 <HT>
21 1:15 -0.24 1. ... e6 2. Ke4 Kf7 3. Kf3 Ke8 4.
Ke2 Kd7 5. Kf2 Kc6 6. Kf3 b5 7. axb5+
Kxb5 8. Ke2 a4 9. bxa4+ Kxa4 10. Kd2
Ka3 11. c3 Kb3 12. cxd4 cxd4 13. Ke2
Kc3
(2) 21-> 1:46 -0.24 1. ... e6 2. Ke4 Kf7 3. Kf3 Ke8 4.
Ke2 Kd7 5. Kf2 Kc6 6. Kf3 b5 7. axb5+
Kxb5 8. Ke2 a4 9. bxa4+ Kxa4 10. Kd2
Ka3 11. c3 Kb3 12. cxd4 cxd4 13. Ke2
Kc3
22 2:08 -0.24 1. ... e6 2. Ke4 Kf7 3. Kf3 Ke8 4.
Ke2 Kd7 5. Kf2 Kc6 6. Kf3 b5 7. axb5+
Kxb5 8. Ke2 a4 9. bxa4+ Kxa4 10. Kd2
Ka3 11. c3 Kb3 12. cxd4 cxd4 13. Ke1
Kc3 14. Ke2
(2) 22-> 2:51 -0.24 1. ... e6 2. Ke4 Kf7 3. Kf3 Ke8 4.
Ke2 Kd7 5. Kf2 Kc6 6. Kf3 b5 7. axb5+
Kxb5 8. Ke2 a4 9. bxa4+ Kxa4 10. Kd2
Ka3 11. c3 Kb3 12. cxd4 cxd4 13. Ke1
Kc3 14. Ke2
23 3:42 -0.48 1. ... e6 2. Kf2 Kf7 3. Ke2 Ke8 4.
Kd2 Kd7 5. c4 dxc3+ 6. Kxc3 Kc7 7.
d4 Kc6 8. Kc4 cxd4 9. Kxd4 <HT>
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