Author: Dieter Buerssner
Date: 02:16:19 03/04/01
Go up one level in this thread
On March 03, 2001 at 16:37:42, Sune Larsson wrote:
>
> [D]4kr2/5p1K/3p1Q2/1p4P1/4P3/1PP5/7b/8 w - - 0 1
>
> Reti, 1928
[..]
> Test: This is a win for white. The solution is further down.
> Warning: This one might be difficult for your program...
Yace, nullmove disabled:
20473459 2:03.2 0.17 12. 1.Kh6 Be5 2.Kg7 Bh2 3.c4 bxc4 4.e5 Bxe5 5.bxc4
Bxf6+ 6.gxf6 Kd7 7.Kxf8 Ke6 8.Kg7 {0}
38225483 3:48.3 0.00 13t 1.Kh6 Be5 2.Kg7 Bh2 3.c4 bxc4 4.e5 Bxe5 5.bxc4
Bh2 6.Kh6 Be5 7.Kg7 {151}
69118281 6:55.0 0.01 13t+ 1.g6 Be5 2.Qxe5+ dxe5 3.g7 Ke7 4.gxf8=Q+ Kxf8
5.c4 Ke8 6.cxb5 Kd8 7.Kh6 Kc7 8.b6+ Kxb6 9.b4
Kc7 10.Kh7 Kd6 11.Kh6 {HT} {0}
74352394 7:27.1 0.02 13t 1.g6 Be5 2.Qxe5+ dxe5 3.g7 Ke7 4.gxf8=Q+ Kxf8
5.c4 bxc4 6.bxc4 f5 7.exf5 e4 8.c5 e3 9.c6 Ke7
10.Kg6 e2 11.f6+ Kd6 12.c7 Kxc7 13.f7H {HT} {0}
77972416 7:49.4 0.02 13. 1.g6 Be5 2.Qxe5+ dxe5 3.g7 Ke7 4.gxf8=Q+ Kxf8
5.c4 bxc4 6.bxc4 f5 7.exf5 e4 8.c5 e3 9.c6 Ke7
10.Kg6 e2 11.f6+ Kd6 12.c7 Kxc7 13.f7 {HT} {0}
177895699 17:42.1 0.00 14t 1.g6 Be5 2.Qxe5+ dxe5 3.g7 Ke7 4.gxf8=Q+ Kxf8
5.c4 bxc4 6.bxc4 f5 7.exf5 {EGTB} 7...e4! 8.c5!
e3 9.c6! Ke8 10.f6 e2 11.c7 {Not all positions
found in TB} {80}
250054842 24:22.4 0.01 14t+ 1.Kh6 Be5 2.Kg7 Bh2 3.c4 bxc4 4.e5 cxb3 5.exd6
Bf4 6.Qxf4 f5 7.gxf6 Rf7+ 8.Kg8 Rg7+ 9.fxg7 b2
10.d7+ Kxd7 11.Qd6+ Kxd6 {0}
314642651 30:34.1 0.42 14++ 1.Kh6 Be5 2.Kg7 Bh2 3.c4 bxc4 4.e5 cxb3 5.exd6
Kd7 6.g6 Ra8 7.gxf7 Be5 8.f8=Q Rxf8 {151}
381274632 37:06.5 1.30 14t 1.Kh6 Be5 2.Kg7 Bh2 3.c4 bxc4 4.e5 Bxe5 5.bxc4
Bxf6+ 6.gxf6 Rh8 7.Kxh8 Kd7 8.Kg8 d5 9.cxd5 Kd6
10.Kxf7 {160}
414719880 40:22.1 1.30 14. 1.Kh6 Be5 2.Kg7 Bh2 3.c4 bxc4 4.e5 Bxe5 5.bxc4
Bxf6+ 6.gxf6 Rh8 7.Kxh8 Kd7 8.Kg8 d5 9.cxd5 Kd6
10.Kxf7 {160}
Doing the first moves on the board, I see a winning score soon. When undoing the
moves, Yace wants to play 1...Rg8, for which i did not get a very high score.
The mate threat is gone, but the material balance keeps the same, even after
doing some of the moves. So I cannot find a forced win here.
after 1. Kh6 Rg8:
6709352 45.173 2.61 11t 2.Kh5 Be5 3.Qf1 Bxc3 4.Qxb5+ Ke7H 5.Qb7+H Ke6H
6.b4H Be5H 7.Qd5+H Ke7H 8.b5H Rh8+H {HT} {231}
7963343 53.785 2.61 11. 2.Kh5 Be5 3.Qf1 Bxc3 4.Qxb5+ Ke7 5.Qb7+ Ke6
6.b4 Be5 7.Qd5+ Ke7 8.b5 Rh8+ {HT} {231}
34276722 3:44.7 2.50 12t 2.Kh5 Be5 3.Qf1 Bxc3 4.Qxb5+ Ke7 5.b4 Be5 6.Qf1
Rh8+ 7.Kg4 Rh2 8.b5H {HT} {231}
36941812 4:03.8 2.50 12. 2.Kh5 Be5 3.Qf1 Bxc3 4.Qxb5+ Ke7 5.b4 Be5 6.Qf1
Rh8+ 7.Kg4 Rh2 8.b5 {HT} {231}
-- Dieter
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