Do you understand the reason for the following code in Toga

[Uri Blass]

code in Toge1.0 beta2:

if (op[colour] >= -22) // Thomas king safe?
op[colour] -= (attack_tot * KingAttackOpening * KingAttackWeight[piece_nb]) / 256;
else
op[colour] -= ((attack_tot * KingAttackOpening * KingAttackWeight[piece_nb]) / 256) * 1;


It seems to me that
op[colour] -= (attack_tot * KingAttackOpening * KingAttackWeight[piece_nb]) / 256; from fruit's code has the same effect and I do not understand the reason for the change from fruit's code.

Uri

[Roman Hartmann]

That looks really a bit odd. Seems to me that there is no need for the if/else statement ...

Roman

[Tord Romstad]

code in Toge1.0 beta2:

if (op[colour] >= -22) // Thomas king safe?
op[colour] -= (attack_tot * KingAttackOpening * KingAttackWeight[piece_nb]) / 256;
else
op[colour] -= ((attack_tot * KingAttackOpening * KingAttackWeight[piece_nb]) / 256) * 1;

I often have similar code in my engine (but usually only in private development versions, I try to remove it before a public release). Thomas is probably experimenting with various factors different from 1, but because of lack of testing or something similar he has decided to be conservative and use a factor of 1 in the public version.

Tord