Ask about similar eval function

[Catherine]

Hi all,

I thought since a week about a theory:

If an engine B use the same eval function than an other A.
If the win margin of A against engine C is almost 15%
and win margin of B against C is almost 40%

Please, Is it possible to have the same eval function and don't have the same strenght? Thank

Catherine.

[Rein Halbersma]

Hi all,

I thought since a week about a theory:

If an engine B use the same eval function than an other A.
If the win margin of A against engine C is almost 15%
and win margin of B against C is almost 40%

Please, Is it possible to have the same eval function and don't have the same strenght? Thank

Catherine.

Of course, because strength = search + eval. If search of A is worse than B, then B would be stronger.

[Catherine]

Hi all,

I thought since a week about a theory:

If an engine B use the same eval function than an other A.
If the win margin of A against engine C is almost 15%
and win margin of B against C is almost 40%

Please, Is it possible to have the same eval function and don't have the same strenght? Thank

Catherine.

Of course, because strength = search + eval. If search of A is worse than B, then B would be stronger.

Hi,

Thank, this is clear now.
So the search speed it's an important factor in the strenght of an engine.
I asked this because if i take into account the BMI2 of Joost that apparently increase search speech, Argus 1.0A6x64 is very fast some tests are been done on core i5 with 8Go of Ram Windows 8.1

PS: this it's just to have answer to my question about the relationship between search speed and stregnht.

Blitz game beetween Scan 2.0 , Kingsrow 1.58, Argus 1.0A6 and Argus 10A7
1min/90 moves
hash size 512
no endgame database
no pondering
no opening book

1rst 20 test games: Kingsrow 1.58 versus Argus 1.0A7 that seem have same strenght than Scan 2.0

KVA7_1-3_nobookegdb_1min[1].pdn

(21.77 KiB) Downloaded 760 times

2nd 20 test games: Kingsrow 1.58 versus Argus 1.0A6 that seem to be very fast

KVA6_0-15_nobookegdb_1min[1].pdn

(22.08 KiB) Downloaded 775 times

3rd 20 test games: Kingsrow 1.58 versus Scan 2.0

KVS_1-3_nobookegdb_1min[1].pdn

(21.77 KiB) Downloaded 764 times

4th 20 test games: Scan 2.0 versus Argus 1.0A6

SVA6_0-9_nobookegdb_1min[1].pdn

(21.48 KiB) Downloaded 773 times

158 dxpgames 2 ballots game beetween Scan 2.0 , Kingsrow 1.58, Argus 1.0A6
10min/90 moves
hash size 512
no endgame database
no pondering
no opening book

1rst 158 dxpgame: Kingsrow 1.58 versus Argus 1.0A6

KVA_5-24_nobookegdb_10min[1].pdn

(183.83 KiB) Downloaded 771 times

[Catherine]

2nd 158 dxpgame: Kingsrow 1.58 versus Scan 2.0

KVS_3-9_nobookegdb_10min[1].pdn

(175.81 KiB) Downloaded 866 times

--Catherine

[Krzysztof Grzelak]

Specify what are the results of matches between programs and improve the configuration of some programs.