Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Test Position; Shredder 8, 2-best moves

Author: Bryan Hofmann

Date: 05:14:54 04/24/04

Go up one level in this thread


On April 23, 2004 at 20:38:25, Vincent Lejeune wrote:

>On April 23, 2004 at 16:37:30, Rex wrote:
>
>>Not sure how others see this position but Rxf7 is the move to have.
>>
>>[D]1r2kb1r/2qb1pp1/p7/3Q2Pn/8/4B2P/PPP3B1/R4RK1 w k - 0 18
>
>Shredder8, AMD 2800+, 384 MB hash
>
>after 3 min, Rad1 become better than Rxf7, and after 20 min here are the eval
>for the 2-best moves :
>
>depth 15/44
>
>1. +- (4.34): 1.Tad1 Txb2 2.Dxf7+ Rd8 3.De6 Fc5 4.Tf7 Fxe3+ 5.Dxe3 Rc8 6.Tfxd7
>Db6 7.T1d4 Txc2 8.Fb7+ Rb8 9.De5+ Tc7 10.Fxa6 Dc5
>2. +- (2.21): 1.Txf7 Tb5 2.Txd7 Dxd7 3.De4+ Fe7 4.Da8+ Dd8 5.Dxa6 Tf5 6.Dg6+ Tf7
>7.Tf1 0-0 8.Txf7 Txf7 9.Dxh5 Da5 10.Dh7+ Rxh7 11.g6+ Rxg6 12.Fe4+ Rf6 13.Fg5+
>Rxg5 14.h4+


Tao 5.6 also finds Rad1 to be a better move;

 1   00:00  0.57   Rxf7 Rxb2
 1+  00:00  0.57   Qxf7+
 1   00:00  1.13   Qxf7+ Kd8
 2   00:00  0.42   Qxf7+ Kd8 Rad1 Rxb2
 2+  00:00  0.42   Rxf7
 2   00:00  0.57   Rxf7 Rxb2
 3   00:00 -0.44   Rxf7 Rb5 Qf3 Rxb2
 3+  00:00 -0.44   Qxf7+
 3   00:00  0.42   Qxf7+ Kd8 Rad1 Rxb2
 4   00:00  0.36   Qxf7+ Kd8 Rf2 Rxb2 Rd1
 5   00:00  0.31   Qxf7+ Kd8 b3 Bc5 Bf2 Nf4
 6   00:00  0.02   Qxf7+ Kd8 Rfd1 Rxb2 Rab1 Rxb1 Rxb1
 6+  00:01  0.02   Rxf7
 6   00:01  0.29   Rxf7 Rb5 Rxd7 Qxd7 Qa8+ Kf7 Rf1+ Ke7
 7   00:02  0.66   Rxf7 Rb5 Rxd7 Qxd7 Qa8+ Ke7 Qxa6 Ng3
 8   00:04  0.87   Rxf7 Rb5 Rxd7 Qxd7 Qa8+ Ke7 Qxa6 Ng3 Kh2
 9   00:09  0.65   Rxf7 Rb5 Rxd7 Qxd7 Qa8+ Ke7 Qxa6 Ng3 Kh2 Ne4
 9+  00:17  0.65   Qxf7+
 9   00:21  0.98   Qxf7+ Kd8 Rad1 Bd6 Rf2 Bh2+ Kh1 Bd6 Rfd2 Ng3+ Kg1 Nf5
10   00:29  0.87   Qxf7+ Kd8 Rad1 Bd6 Rf2 Bh2+ Kh1 Bd6 Qg6 Be7 Rfd2 Ng3+ Kh2
10+  00:37  0.87   Rxf7
10   00:49  1.45   Rxf7 Rb5 Rxd7 Qxd7 Qa8+ Ke7 Bc6 Rb8 Qxb8 Qxc6 Rc1
11   01:16  1.15   Rxf7 Rb5 Rxd7 Qxd7 Qa8+ Ke7 Bc6 Rb8 Qxb8 Qxc6 Qe5+ Kf7 Rc1
11+  02:04  1.15   Rad1
11   03:05  1.45   Rad1 f5 Rxf5 Bxf5 Qxf5 Bb4 Qe6+ Qe7 Qc6+ Kf8 Rf1+ Nf6 Bd4 Qd8
Bxf6 gxf6 Rxf6+ Kg7 Qxa6
12   04:51  1.85   Rad1 f5 Rxf5 Bxf5 Qxf5 Bb4 c3 Ng3 Qg6+ Kf8 cxb4 Ne2+ Kh1 Rxb4






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.