Author: Michel Langeveld
Date: 07:42:25 01/10/04
Just 2 improvements
put the history updating one line lower so from:
history[(int)gen_dat[i].m.b.from][(int)gen_dat[i].m.b.to] += depth;
if (x >= beta)
{
return beta;
}
into:
if (x >= beta)
{
history[(int)gen_dat[i].m.b.from][(int)gen_dat[i].m.b.to] += depth;
return beta;
}
----------------------------------
Also it helps to make the is_check that it doesn't have to search the king
anymore:
BOOL in_check(int s)
{
return attack(kings[s], s ^ 1);
}
and add into makemove:
//king has moved
if (piece[m.to] == KING)
{
kings[side] = m.to;
}
and into restoremove:
//change location of king
if (piece[m.to] == KING)
{
kings[side] = m.from;
}
Does someone knows other tricks?
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