Author: Robert Hyatt
Date: 14:54:52 06/13/99
Go up one level in this thread
On June 13, 1999 at 16:50:25, leonid wrote: >How game count number of positions that it see each second? > >As simple as this question can sound, it is tricky one. Problem rely >inside of ply zero. In the ply much higher (that lowest ply) number of positions >seen is the number of moves deposed on the board for evaluation. >But on the ply zero you don't need to do this at all! On the lowest ply >you can have around 4 moves [nodes] to evaluate but you do this without deposing >even single one on the board. Everything is done while >generating those three or four moves. When I tryed to find how many >positions in one second my game can see, I was all the time confused. >When not counting the 3 or 4 moves generated on the level zero [because no >official deposition of moves is done]I recieve very mederate, if not very >mediocre number. It was around 40 - 45k per second as a "big shot". When >I see this I am ready to drop my game because my chances to make it good >are simply not there. But when I artifically obligate my game to >see on the lowest ply all the moves, like everywhere (by deposing them >on the board for studying) my numbers goes up and I feel me happy. >On my Pentium 166 it can go as far as 250k per second, but generaly around >150K. With the last numbers, I can have some confidence to end well my >game. Never mind if some extra ticks will be eventually lost when the >game will become more complicated in the future. I will just arrrive to >the normal speed at the end of programming. > >Now You see why I want finally find what is the reality behind the >positions/second numbers. How calculation is done usually inside of >the chess game? Solve a mystery for me!!! > >Leonid. just count the number of times Search()/Quiesce() is called. Or count the number of times MakeMove() is called (should be the same roughly).
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.