Search found 205 matches

by Kotlov
Tue Sep 08, 2020 11:02 am
Forum: Computer Chess Club: General Topics
Topic: Official Release of Ethereal 12.50
Replies: 23
Views: 3232

Re: Official Release of Ethereal 12.50

AndrewGrant wrote:
Tue Sep 08, 2020 10:05 am
Hello all. Today we are officially releasing Ethereal 12.50.
Great work!
by Kotlov
Tue Sep 08, 2020 9:08 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: I don't want to give up
Replies: 70
Views: 13419

Re: I don't want to give up

When did "giving up" become an option? :wink: I'm tired of explaining this but for those that have not heard it before. I was born with a learning disability. I guess more accurately a memory disability. I can't remember from one minute to the next what I am doing especially when I lose focus. And ...
by Kotlov
Tue Sep 08, 2020 6:20 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Is cloning a hobby?
Replies: 79
Views: 9956

Re: Is cloning a hobby?

"Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning. But sharing ideas is an even greater virtue. We have another word for this. It is called teaching." But sometimes it’s different. You make your own code, find some ideas on your own, think to yourself...
by Kotlov
Fri Aug 21, 2020 8:43 pm
Forum: Computer Chess Club: General Topics
Topic: Chess programming on YouTube: NOBODY CARES?
Replies: 44
Views: 6920

Re: Chess programming on YouTube: NOBODY CARES?

Главное что бы самому нравилось.
by Kotlov
Mon Aug 17, 2020 7:23 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Data structure choice for TT
Replies: 35
Views: 12707

Re: Data structure choice for TT

OliverBr wrote:
Mon Aug 17, 2020 12:21 am
Nevertheless I would guess that a better random generator yold in a better distribution over the slots.
Not better, just different.
by Kotlov
Tue Aug 11, 2020 9:12 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Using piece-square table score for move ordering
Replies: 1
Views: 1031

Re: Using piece-square table score for move ordering

Я в свое время пробовал по-разному, но лучшие результаты все равно были у обычной эвристики истории. Дело в том, что наибольшее значение в альфа-бета поиске имеет не сколько порядок силы ходов по убыванию, а вероятность как можно раньше найти самый сильный ход который вызовет отсечку по бете. Эврист...
by Kotlov
Tue Aug 11, 2020 7:40 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Data structure choice for TT
Replies: 35
Views: 12707

Re: Data structure choice for TT

PS: The 64 bit random generator: typedef unsigned long long u64; typedef unsigned long u32; typedef int Move; #define LOW16(x) ((x) & 0xFFFF) #define LOW32(x) ((x) & 0xFFFFFFFF) static u32 r_x = 30903, r_y = 30903, r_z = 30903, r_w = 30903, r_carry = 0; u32 _rand_32() { r_x = LOW32(r_x * 69069 + 1)...
by Kotlov
Wed Jul 01, 2020 3:35 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: knodes/s halved after improving eval
Replies: 6
Views: 982

Re: knodes/s halved after improving eval

brianr wrote:
Tue Jun 30, 2020 11:10 pm
Caution: Computer chess can become addicting.
confirm
by Kotlov
Tue Jun 09, 2020 10:18 am
Forum: Computer Chess Club: General Topics
Topic: Hedgehog
Replies: 52
Views: 14449

Re: Hedgehog

Eugene Kotlov Hedgehog 2.0 64-bit coming soon... Isn't it out? http://ccrl.chessdom.com/ccrl/4040/cgi/engine_details.cgi?match_length=30&each_game=1&print=Details&each_game=1&eng=Hedgehog%202.0%2064-bit#Hedgehog_2_0_64-bit Better late than never. :) I work on it. Complete refactoring, multithread, ...