Search found 82 matches

by Angrim
Thu Jun 25, 2020 5:45 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Chess varinat engine questions
Replies: 6
Views: 274

Re: Chess varinat engine questions

2) And the risk of hash collisions should only be affected by speed and number of hash table entries, not number of piece types. At least if you do it right. Just have an array of random 64 bit numbers indexed by piece type and location on the board, so as you get more piece types your array gets bi...
by Angrim
Thu Jun 25, 2020 3:21 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Chess varinat engine questions
Replies: 6
Views: 274

Re: Chess varinat engine questions

One method to get an in-between strength is to do a shallow search with a wide window, then pick at random from the moves that score within that window. Like if your windows is 20 centpawns, and you search 4 ply deep and get a score of 50, then search all moves with a window of 30 to 50, and any mov...
by Angrim
Mon May 04, 2020 4:51 am
Forum: Computer Chess Club: General Topics
Topic: Komodo vs. GM Lenderman match; "Almost a knight"
Replies: 98
Views: 12344

Re: Komodo vs. GM Lenderman match; "Almost a knight"

It seems to me that an "obvious" way to handle these odds games would be to have the computer scale the value of it's pieces up until the initial position scores as 0.0. That way the further behind it starts, the less willing it will be to trade pieces.
by Angrim
Sun May 03, 2020 6:18 pm
Forum: Computer Chess Club: General Topics
Topic: Playing against your own engine
Replies: 14
Views: 1609

Re: Playing against your own engine

If I play my own engine, most of the games can be summarized as "total noob plays GM, who makes fun of them by avoiding all standard opening lines" :) Although in atomic variant, some of the standard opening lines were developed by computers, so my engine has duplicated standard lines a fair bit the...
by Angrim
Sun Apr 19, 2020 5:24 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: playing Talish (my program) as opposed to playing Leela
Replies: 4
Views: 827

Re: playing Talish (my program) as opposed to playing Leela

How about this, run a search with stockfish in parallel, using half the available cores(so that the leela search won't be hurt much at all, it should just need a few cores plus the gpu), and when the stockfish eval passes +8 it's time to hand it over?
by Angrim
Sun Apr 05, 2020 4:18 am
Forum: Computer Chess Club: General Topics
Topic: You can run your engine on lichess.org now
Replies: 23
Views: 6752

Re: You can run your engine on lichess.org now

Does this work on linux? I'm bored and tempted to set up one of my engines on lichess now, probably the atomic variant engine since I've been working on that some recently. And unrelated, but are the lichess forums locked for new players currently? I thought you just had to play enough to get a stab...
by Angrim
Sun Apr 05, 2020 1:14 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Using Freeware AI and Dynamically Generated Endgame Tablebases
Replies: 32
Views: 2953

Re: Using Freeware AI and Dynamically Generated Endgame Tablebases

The programmer, in consultation with a chess grandmaster, examines the game that the Chess-AI lost and spots the losing move . Then, the programmer and grandmaster examine the position and conclude that there was no rational way that the Chess-AI should have made that move (i.e. probability of winn...
by Angrim
Tue Dec 31, 2019 5:24 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: RMO - Randomized Move Order - yet another Lazy SMP derivate
Replies: 114
Views: 14929

Re: RMO - Randomized Move Order - yet another Lazy SMP derivate

If this gets better game results despite worse time to depth, then it must be searching moves that were incorrectly pruned normally. And it seems that this incorrect pruning has been happening often enough to have a measurable impact. So it seems like it would be worth researching what moves get sea...
by Angrim
Tue Dec 24, 2019 5:41 pm
Forum: Computer Chess Club: General Topics
Topic: Google has a political bias against Stockfish!
Replies: 18
Views: 2885

Re: Google has a political bias against Stockfish!

Just in case this wasn't some odd form of humor, I would like to point out that Stockfish doesn't use neural networks.
And the first actual search result is "Stockfish Wins Computer Chess Championship As Neural Networks Play Catch-Up"
by Angrim
Fri Dec 13, 2019 2:52 pm
Forum: Computer Chess Club: General Topics
Topic: Aprende Con Rey, new chess engine for kids
Replies: 7
Views: 1086

Re: Aprende Con Rey, new chess engine for kids

Somewhat challenging for a non Spanish speaker to navigate, but the play once you get to the game seems to work fine. I'm going to pass this site on to a kid in our chess club that I know is struggling in his Spanish class, maybe it will help motivate him :)