Search found 4808 matches

by lkaufman
Sun Jul 11, 2021 10:22 pm
Forum: Computer Chess Club: General Topics
Topic: How perform stockfish 14 in odd match?
Replies: 5
Views: 1183

Re: How perform stockfish 14 in odd match?

Quoting the description of stockfish 14: "the new network is not only larger, but more importantly, it deals better with large material imbalances". Has anyone done any tests versus other engines? What is expected of the outcome against humans? Is now a good competitor against Dragon 2 MCTS in odd ...
by lkaufman
Sun Jul 11, 2021 5:53 pm
Forum: Computer Chess Club: General Topics
Topic: Gary Kasparov 58 Years old is no longer 2812 use your engine
Replies: 29
Views: 4310

Re: Gary Kasparov 58 Years old is no longer 2812 use your engine

Today he scored 2 out of 9. His fide blitz rating dropped 157 Elo points to 2644. Aside from being rusty, it also shows just how much the level of chess has advanced, especially at blitz due to online play. Now i don’t feel so badly about my own fide dropping 200 points. It is another world now.
by lkaufman
Fri Jul 09, 2021 4:09 pm
Forum: Computer Chess Club: General Topics
Topic: Komodo Dragon 2 released.
Replies: 121
Views: 44839

Re: Komodo Dragon 2 released.

Here's a rather simple tactical position Dragon 2 in MCTS mode doesn't understand and I wonder what the problem is: 8/pp3p2/5p2/5p1P/1P1bk3/P5B1/2K5/8 w - - 0 1 It wants to play 1.h6. But this move is bad because the first two pawns of the triple pawn group can move forward, thus opening the diagon...
by lkaufman
Thu Jul 08, 2021 5:43 pm
Forum: Computer Chess Club: General Topics
Topic: Komodo Dragon 2 released.
Replies: 121
Views: 44839

Re: Komodo Dragon 2 released.

Larry Kaufman, have the Komodo team tried out Monte-Carlo Graph Search yet? This paper claims that it is an improvement over Monte-Carlo Tree Search: https://arxiv.org/abs/2012.11045 No, thanks for the idea. Our MCTS doesn't have much of a memory problem, so it might not be very helpful, but I don'...
by lkaufman
Wed Jul 07, 2021 1:55 am
Forum: Computer Chess Club: General Topics
Topic: Komodo should be the 1st with a strength function !
Replies: 7
Views: 1339

Re: Komodo should be the 1st with a strength function !

Is your point that we need skill levels for mcts, or that users are unable to divide their rating by 115 to choose the proper skill level?
by lkaufman
Tue Jul 06, 2021 6:23 pm
Forum: Computer Chess Club: General Topics
Topic: Komodo should be the 1st with a strength function !
Replies: 7
Views: 1339

Re: Komodo should be the 1st with a strength function !

Based on my latest findings, Komodo Dragon 2 on one thread playing Rapid (15' + 10") against human players using the Skill levels 1-24 should be roughly evenly matched if the human FIDE rating = 115 x Skill level. Are you saying that 115 elo points between levels is too wide, or just that we need to...
by lkaufman
Tue Jul 06, 2021 5:54 pm
Forum: Computer Chess Club: General Topics
Topic: Komodo Dragon 2 released.
Replies: 121
Views: 44839

Re: Komodo Dragon 2 released.

CMCanavessi wrote:
Tue Jul 06, 2021 4:25 pm
lkaufman wrote:
Tue May 04, 2021 3:53 pm
...
Larry, when you go to the Komodo website, the link to the free version (Komodo 12?) points to the website again, no download.
If you click on "dragon sale" and then "komodo 12 free" it works, but I agree, we should fix the website.
by lkaufman
Thu Jul 01, 2021 2:49 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: CCRL 40/15, 40/2 and FRC lists updated (26th June 2021)
Replies: 13
Views: 3257

Re: CCRL 40/15, 40/2 and FRC lists updated (26th June 2021)

Great success for SlowChess Blitz. If we don't consider NN chess engines and controversial chess engine Fat Fritz , SlowChess Blitz is now in third place. Actually ı mean gpu based engines like Lc0 and Stoofvlees not chess engines using nnue network. Houdini is the most powerful alpha-beta chess en...
by lkaufman
Wed Jun 30, 2021 5:21 pm
Forum: Computer Chess Club: General Topics
Topic: Dragon Human Personality
Replies: 2
Views: 958

Re: Dragon Human Personality

I was playing around with the Human personality of the Dragon engine (in MCTS mode). Why are the evaluations so exaggerated? For example for the Scandinavian 1. e4 d5 I get +1.6. And then when I take 2. exd5 the score drops to around 0. Is this normal? Also, how realistic is the Human personality a...
by lkaufman
Mon Jun 28, 2021 8:14 pm
Forum: Computer Chess Club: General Topics
Topic: Can the best Shogi engine give odds to the human shogi champion ?
Replies: 6
Views: 2214

Re: Can the best Shogi engine give odds to the human shogi champion ?

I just got word from a Japanese shogi friend that some shogi pros (grandmasters in chess parlance) have admitted to losing to top shogi software in unofficial games despite receiving bishop handicap, just as I suspected. But I don't know if they were top pros or how fast or slow the games were played.