Killer Moves

[Bill Rogers]

Thanks Robert
I had a feeling that was what the fact at least temporarily.
Bill

[Colin]

Hi, I haven't been on in a while been doing other things like 3D chess gui (in java), including shading/reflections/perspective, will show pics when done.

I still haven't got round to applying killer moves, but I'd like to get them done, so with some more advice, I should be able to.

Assuming I store 1 killer move per ply, then I need a single array

Code: Select all

int[] killers;

to store them.

Currently I have:
Hash Move,
Captures (Ordered by MVV/LVA)
Non-Captures.

So I guess if killers are non-captures, I would play the killer move after Captures, and before non-captures? Is that right?

To set a killer at a particular ply, is this done only when we have a cut off?

Eg

Code: Select all

if(value >= beta)
{
     killers[ply] = current_move;
     return beta;
}

Also, if 2 killers were used at each ply, I guess you would have the top one as the one that had the larger value to make the cut off?

Thanks for any help

[Ron Murawski]

Also, if 2 killers were used at each ply, I guess you would have the top one as the one that had the larger value to make the cut off?

Thanks for any help

The most recent killer is the best one.

Ron