Computer Chess Club Archives


Search

Terms

Messages

Subject: correction

Author: James Swafford

Date: 10:02:42 07/18/02

Go up one level in this thread


On July 18, 2002 at 13:01:36, James Swafford wrote:

>On July 17, 2002 at 17:29:49, Dann Corbit wrote:
>
>>On July 17, 2002 at 16:30:24, Patrik wrote:
>>
>>>Hello, Dr Hyatt.
>>>
>>>  if (do_null && !tree->in_check[ply] && pieces && (pieces>5 || depth<421)) {
>>>
>>>Where does the depth 421 come from?
>>
>>It appears to be about 7 plies, since INCPLY is 60.
>
>So does null move break if you set INCPLY to something else?
>Seems  ... || depth < INCPLY*7)) {

depth < (INCPLY * 7 + 1))


>would be better.
>
>--
>James
>
>
>>
>>Therefore if:
>>1.  You are allowed to do null moves
>>and
>>2.  You are not in check
>>and
>>3.  You have some pieces
>>and
>>{
>>EITHER
>>4a.  You have at least 5 pieces on the board
>>OR
>>4b.  You are less than 7 plies deep
>>}
>>then go ahead with the null move



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.