Search found 62 matches

by RubiChess
Sun Feb 17, 2019 8:30 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Top Engines without Piece-Square Tables?
Replies: 4
Views: 451

Re: Top Engines without Piece-Square Tables?

I have full 8x8 psqt for every piece (well, 8x6 for pawn). Most times when I introduce a new evaluation feature, the psqt of the corresponding piece(s) needs to be retuned to make the new feature work. So there seems a lot of "value" in the psqt.

./Andreas
by RubiChess
Sun Feb 17, 2019 1:09 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: LCZero starts with an opening disadvantage..................
Replies: 30
Views: 1328

Re: LCZero starts with an opening disadvantage..................

Check out the last game that Lc0 beat SF in at TCEC ... incredible opening play. Totally destroyed SF by giving up a bishop and then going down 3 pawns so that it could keep the rook on h8 out of play for enough time to create a winning advantage. I have never ever seen an engine that can play the ...
by RubiChess
Fri Feb 15, 2019 5:38 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: LCZero starts with an opening disadvantage..................
Replies: 30
Views: 1328

Re: LCZero starts with an opening disadvantage..................

I know that these are only words,but I have a question for you? If you ever see two strangers fighting with either knife, Machete or even guns, would you try to be the hero and get in the middle to stop them from fighting? If your answer is NO, then why do you interfere with two strangers to you ha...
by RubiChess
Thu Feb 14, 2019 5:07 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: LCZero starts with an opening disadvantage..................
Replies: 30
Views: 1328

Re: LCZero starts with an opening disadvantage..................

You as a moderator can't you kick him just out of this forum? Annoying to read this childish bullshit. ./Andreas the only person that talksd insulting when answering any question or post when he has more information about the subject is HG Muller. My statement based on your first post in this threa...
by RubiChess
Wed Feb 13, 2019 4:41 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: LCZero starts with an opening disadvantage..................
Replies: 30
Views: 1328

Re: LCZero starts with an opening disadvantage..................

You as a moderator can't you kick him just out of this forum? Annoying to read this childish bullshit.
./Andreas
by RubiChess
Mon Feb 11, 2019 6:19 am
Forum: Computer Chess Club: General Topics
Topic: RubiChess 1.3
Replies: 2
Views: 299

RubiChess 1.3

… is out and finally has some (lazy) SMP support.

https://github.com/Matthies/RubiChess/releases/latest

./Andreas
by RubiChess
Sun Feb 10, 2019 10:53 am
Forum: Computer Chess Club: General Topics
Topic: What happened for Stockfish at Move 47...?
Replies: 3
Views: 377

Re: What happened for Stockfish at Move 47...?

Isn't it just a case that that was a forced move, i.e. the king move was the only legal move so SF played instantly w/out searching? Yes. So called "instamove". Maybe it would be a good idea to output the score of the evaluation of the previous position again instead of the useless eval at depth 1....
by RubiChess
Sat Feb 09, 2019 3:02 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Killers and forward pruning test searches
Replies: 16
Views: 1161

Re: Killers and forward pruning test searches

cdani wrote:
Sat Feb 09, 2019 6:25 am
What I do in Andscacs:

Code: Select all

if (king in (state - 1) is not in check) {
	(state + 2)->killers[0] = invalidmove;
	(state + 2)->killers[1] = invalidmove;
state is the current node, state +2 is two nodes ahead.
Thanks for the idea but... nope. Doesn't work here.
by RubiChess
Wed Feb 06, 2019 5:32 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Killers and forward pruning test searches
Replies: 16
Views: 1161

Re: Killers and forward pruning test searches

Hmm, Topple loses about 10 Elo if I implement this. It uses less nodes for the same depth on some positions, but more nodes on other positions. Strange. RubiChess also loses Elo when clearing killers of ply+1. Clearing at ply+2 is more promising but tests still running. ./Andreas Clearing at ply+2 ...
by RubiChess
Tue Feb 05, 2019 6:01 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Killers and forward pruning test searches
Replies: 16
Views: 1161

Re: Killers and forward pruning test searches

Hmm, Topple loses about 10 Elo if I implement this. It uses less nodes for the same depth on some positions, but more nodes on other positions. Strange. RubiChess also loses Elo when clearing killers of ply+1. Clearing at ply+2 is more promising but tests still running. ./Andreas I guess this is ve...