Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Static Eval Test

Author: Robert Hyatt

Date: 08:14:55 09/09/02

Go up one level in this thread


On September 08, 2002 at 20:39:42, Brian Richardson wrote:

>Tinker's static evaluation is -.24, which is good for black, despite
>being a pawn down.
>
>Tinker's eval is asymmetric, especially some king safety terms, so
>as it happens, the static eval if white is set on move is -1.31 (better for
>black).
>
>This is also one of those positions where the score bounces around a lot
>between odd and even plys:
>ply score
>6   0.21
>7   0.87
>8   0.50
>9   1.22
>10  0.60
>11  1.17
>(all favoring black).


Mine gets pretty solid by depth=9 and gets worse and worse for white as
the depth advances:


         (2)    8->   5.82  -0.49   1. ... Rd8 2. Qc2 Rxd1+ 3. Qxd1 Nc5
                                    4. Ne5 Qe4 5. Rg1 Nd3+ 6. Nxd3 Bxd3
                9     7.10  -0.45   1. ... Rd8 2. Qc2 Rxd1+ 3. Qxd1 Nc5
                                    4. Ne5 Qf5 5. b4 axb4 6. axb4 Nd3+
                                    7. Nxd3 Bxd3
                9    11.39  -0.78   1. ... Re8 2. Rd5 Rac8 3. Nh4 Qf6 4.
                                    Nf5 Bc4 5. Rxa5 Rcd8
                9->  11.67  -0.78   1. ... Re8 2. Rd5 Rac8 3. Nh4 Qf6 4.
                                    Nf5 Bc4 5. Rxa5 Rcd8
               10    17.89  -0.74   1. ... Re8 2. Rd4 Rac8 3. a4 Qf5 4.
                                    Bf4 Qg4 5. Rg1 Qf5 6. Qd1
               10->  20.66  -0.74   1. ... Re8 2. Rd4 Rac8 3. a4 Qf5 4.
                                    Bf4 Qg4 5. Rg1 Qf5 6. Qd1
               11    39.32  -0.91   1. ... Re8 2. Rd5 Rac8 3. Rg1 Qc6 4.
                                    Qd1 Bb5 5. Be5 f6 6. Bf4 b6
               11->  41.57  -0.91   1. ... Re8 2. Rd5 Rac8 3. Rg1 Qc6 4.
                                    Qd1 Bb5 5. Be5 f6 6. Bf4 b6
               12     1:36  -0.96   1. ... Re8 2. Rd4 Rac8 3. a4 b6 4.
                                    Rg1 Qf5 5. Bf4 f6 6. Nd2 Bb7 7. Qd3
               12->   1:43  -0.96   1. ... Re8 2. Rd4 Rac8 3. a4 b6 4.
                                    Rg1 Qf5 5. Bf4 f6 6. Nd2 Bb7 7. Qd3
               13     2:50  -1.02   1. ... Re8 2. Rd4 Rac8 3. a4 b6 4.
                                    Rg1 Qe6 5. Qd1 f6 6. Rd7 Bc4 7. Qd4
                                    Nxg3 8. hxg3
               13->   3:05  -1.02   1. ... Re8 2. Rd4 Rac8 3. a4 b6 4.
                                    Rg1 Qe6 5. Qd1 f6 6. Rd7 Bc4 7. Qd4
                                    Nxg3 8. hxg3

This doesn't show black winning any material, so there is roughly -2.0
positional compensation for black, according to Crafty...



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.