Search found 311 matches

by Karlo Bala
Wed Jan 06, 2021 3:03 pm
Forum: Computer Chess Club: General Topics
Topic: Evaluation of moves from World Championship Games
Replies: 24
Views: 1417

Re: Evaluation of moves from World Championship Games

By today's standards at move 12, we are still in the middle of the opening book. I suspect the results are biased. Try the same but start for example at move 20 to see if there is a difference between the results. In their matches, Kasparov & Karpov played the same opening over and over until beate...
by Karlo Bala
Tue Jan 05, 2021 7:14 pm
Forum: Computer Chess Club: General Topics
Topic: Evaluation of moves from World Championship Games
Replies: 24
Views: 1417

Re: Evaluation of moves from World Championship Games

By today's standards at move 12, we are still in the middle of the opening book. I suspect the results are biased. Try the same but start for example at move 20 to see if there is a difference between the results. In their matches, Kasparov & Karpov played the same opening over and over until beaten...
by Karlo Bala
Wed Dec 30, 2020 9:23 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Are Aspiration Windows Worthless?
Replies: 40
Views: 3067

Re: Are Aspiration Windows Worthless?

It all depends very much upon the quality of the evaluation-function and the quiescence-search. When you play a game against an engine with aproximately the same strength the root-score will deviate only a few centipawns during the whole game and you can set a very narrow window without having to r...
by Karlo Bala
Sat Dec 26, 2020 1:33 am
Forum: Computer Chess Club: General Topics
Topic: Reset-Mobility Chess
Replies: 5
Views: 496

Re: Reset-Mobility Chess

One of the administrators at TCEC, Aloril, has recently developed a variant of chess called Reset-Mobility chess, or R-Mobility chess, which is a generalisation of Lasker chess (where stalemate = 0.75 points) to every chess game that ends in a draw. The goal of Reset-Mobility chess is to force your...
by Karlo Bala
Mon Dec 21, 2020 8:18 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Are Aspiration Windows Worthless?
Replies: 40
Views: 3067

Re: Are Aspiration Windows Worthless?

They are for MadChess. I posted a detailed explanation on my blog at MadChess 3.0 Beta 4b7963b (Remove Aspiration Windows) . Long story short: problems with search instability... fail high, fail low, fail high again, etc. In the following position, MadChess, when using aspiration windows, struggles...
by Karlo Bala
Fri Dec 18, 2020 10:33 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Recommendation for C++ Programming Forums?
Replies: 9
Views: 1213

Re: Recommendation for C++ Programming Forums?

More than 20 years ago I used comp.lang.c & comp.lang.c++ news groups from the Netscape mail :)
I don't know if they are still alive, but I liked those groups a lot.
by Karlo Bala
Sat Dec 12, 2020 2:19 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: tensorflow c++ model from keras model doesnt have "init" operation
Replies: 1
Views: 748

Re: tensorflow c++ model from keras model doesnt have "init" operation

hi, I dont know if this is good for this forum, but I ran into a problem when programming the network in my chess engine. I use the cppflow c_api wrapper and I converted my model to a pb file with https://medium.com/@sebastingarcaacosta/how-to-export-a-tensorflow-2-x-keras-model-to-a-frozen-and-opt...
by Karlo Bala
Thu Dec 10, 2020 7:00 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: How to make engine more tactical and less positional
Replies: 11
Views: 1596

Re: How to make engine more tactical and less positional

Hi guys I know this topic has been discussed before in some threads and I remember someone was mentioning LMR adjustments, but I can't find that post. So could someone please kindly explain the general principals of which parts of a search actually influence the tactical vs positional playing style...
by Karlo Bala
Fri Dec 04, 2020 12:43 am
Forum: Computer Chess Club: General Topics
Topic: *** General user warnings ***
Replies: 80
Views: 6279

Re: *** General user warnings ***

Ras wrote:
Fri Dec 04, 2020 12:19 am
Karlo Bala wrote:
Fri Dec 04, 2020 12:09 am
Could someone explain to me in 3 simple sentences?
This forum is hosted for free by ChessUSA. Since we are not paying hosting customers, we cannot demand any serious hosting support. That's only two sentences, but now it's three. 8-)
Thanks ;)

What exactly does "serious hosting support" mean?
by Karlo Bala
Fri Dec 04, 2020 12:09 am
Forum: Computer Chess Club: General Topics
Topic: *** General user warnings ***
Replies: 80
Views: 6279

Re: *** General user warnings ***

I'm sorry, but I don't understand what the problem is at all. Could someone explain to me in 3 simple sentences?