Author: Robert Hyatt
Date: 19:25:18 02/06/03
Go up one level in this thread
On February 06, 2003 at 16:57:29, Jon Dart wrote:
>Here's a position that occurred in a recent offline test game:
>
>{D] 8/6r1/p7/1p6/3kBn1P/P2p1P2/1P6/3R1K2 b - -
>
>Ke3 is winning here, but Arasan 6.3 doesn't get this, in fact it wants to play
>Rg8. It is apparently a null move issue. If I turn off null moves, or restrict
>the null move in the case where the opponent has an advanced passer, then it is
>solved quickly.
>
>--Jon
It takes my PIII/750 laptop 23 seconds to find Ke3:
Ne2 5. Kg2 Rxh6 6. Bf5 Rh5 7. Be4
12 12.89 -1.96 1. ... Rg3 2. a4 bxa4 3. h5 Rh3 4.
Kf2 Rxh5 5. Ra1 a3 6. bxa3 Nh3+ 7.
Ke1 Ke3
12 23.57 ++ 1. ... Ke3!!
12 35.34 -3.28 1. ... Ke3 2. h5 d2 3. h6 Rg3 4. Rxd2
Kxd2 5. Kf2 Rg2+ 6. Kf1 Rh2 7. h7 Ne2
8. b4 <HT>
12-> 35.48 -3.28 1. ... Ke3 2. h5 d2 3. h6 Rg3 4. Rxd2
Kxd2 5. Kf2 Rg2+ 6. Kf1 Rh2 7. h7 Ne2
8. b4 <HT>
13 44.73 ++ 1. ... Ke3!!
13 1:20 -4.77 1. ... Ke3 2. Bxd3 Nxd3 3. b3 Rg3 4.
a4 Rxf3+ 5. Kg2 bxa4 6. bxa4 Nf4+ 7.
Kg1 Rg3+ 8. Kf1 Rh3 9. Re1+ Kd2 10.
Kf2 Rxh4
13-> 1:23 -4.77 1. ... Ke3 2. Bxd3 Nxd3 3. b3 Rg3 4.
a4 Rxf3+ 5. Kg2 bxa4 6. bxa4 Nf4+ 7.
Kg1 Rg3+ 8. Kf1 Rh3 9. Re1+ Kd2 10.
Kf2 Rxh4
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.