Tactical search

[Cardoso]

Hi,
I'm thinking adding one or more threads dedicated to a tactical search.
Probably I will also add another thread for mate search but this is another issue.
What are the main ideas to take into consideration when implementing a tactical mode?

thanks,
Alvaro

[Dann Corbit]

Hi,
I'm thinking adding one or more threads dedicated to a tactical search.
Probably I will also add another thread for mate search but this is another issue.
What are the main ideas to take into consideration when implementing a tactical mode?

Houdini did something very much like your idea.
I suggest you might want to look at the repository found listed in the fishcooking forum.

[Rebel]

Hi,
I'm thinking adding one or more threads dedicated to a tactical search.
Probably I will also add another thread for mate search but this is another issue.
What are the main ideas to take into consideration when implementing a tactical mode?

thanks,
Alvaro

Out of pure curisoity I once at the end of eval replaced the score with the incremental PST value (thus counting wood mainly) and noticed the search came 1.5 - 2 ply deeper. Doing that at the beginning increased the NPS.

[Cardoso]

Hi,
I'm thinking adding one or more threads dedicated to a tactical search.
Probably I will also add another thread for mate search but this is another issue.
What are the main ideas to take into consideration when implementing a tactical mode?

thanks,
Alvaro

Out of pure curisoity I once at the end of eval replaced the score with the incremental PST value (thus counting wood mainly) and noticed the search came 1.5 - 2 ply deeper. Doing that at the beginning increased the NPS.

Aside the NPS increase, probably is a similar effect to the code below from Stockfish evaluation function that forces evaluation values being multiples of 16 (grain size).

Code: Select all

// Evaluation grain
    v = (v / 16) * 16;