Search found 472 matches

by yurikvelo
Mon Jul 06, 2020 6:23 am
Forum: Computer Chess Club: General Topics
Topic: How many CPU cores does ChessDBCN have?
Replies: 8
Views: 315

Re: How many CPU cores does ChessDBCN have?

ChessDBCN is a set of independent Linux machines 8 core (97 machines) and 16 core (39 machines)

https://www.chessdb.cn/cloudbookc_info_en.html

viewtopic.php?t=71764
by yurikvelo
Fri Jul 03, 2020 1:13 pm
Forum: Computer Chess Club: General Topics
Topic: BIOS question
Replies: 4
Views: 263

Re: BIOS question

BIOS updates are mostly compatibility issues with new CPU, DRAM vendors, PCI-E extension cards, boot options etc. If your system was up and running - BIOS upgrade won't change anything in 99% cases. At download section of your motherboard vendor site you can always find BIOS manual downloads and cha...
by yurikvelo
Thu Jul 02, 2020 4:20 pm
Forum: Computer Chess Club: General Topics
Topic: Leela outplays Spike from what should be a drawn endgame
Replies: 5
Views: 314

Re: Leela outplays Spike from what should be a drawn endgame

Enabled, but taking into account Spike's search depth - it will never reach 6-man position from move #31
Maybe from move #60 it can reach TB Hits
by yurikvelo
Thu Jul 02, 2020 7:03 am
Forum: Computer Chess Club: General Topics
Topic: Leela outplays Spike from what should be a drawn endgame
Replies: 5
Views: 314

Re: Leela outplays Spike from what should be a drawn endgame

Spike had Tablebases installed I figured the game would be a draw I doubt Spike had at least 1 TB hit ever D=35, 798 MN -0,21 34.Kf2 a4 35.Ke3 Rc8 36.Rf1 b4 (-0.08 @ D=45) -0,51 34.a4 b4 35.Kf2 Be5 36.Ke2 bxc3 -0,57 34.g4 Kd6 35.Kf2 Rf8+ 36.Ke3 Ke5 -0,60 34.Rf1 b4 35.Kf2 Rc8 36.Rb1 Be5 -0,70 34.Kg2...
by yurikvelo
Wed Jun 24, 2020 7:29 am
Forum: Computer Chess Club: General Topics
Topic: LC0 uses positional skills to "Lock Down" Gull 3
Replies: 4
Views: 434

Re: LC0 uses positional skills to "Lock Down" Gull 3

I analyzed this game again, there is no big nor any obvious blunder committed by Stockfish 11 here. Excellent light square domination on K side of SF which proves fatal. just SF blunder, no domination +4,04 32.Re3 Kg7 33.Qb2 Kg6 34.Ra1 Rg8 +3,48 32.Qb2 Qf5 33.Qd2 Bg4 34.Re3 Kh7 +3,33 32.Ree1 Kf5 33...
by yurikvelo
Mon Jun 22, 2020 9:40 am
Forum: Computer Chess Club: General Topics
Topic: What is the best way to obtain the 7-piece tablebases?
Replies: 44
Views: 2203

Re: What is the best way to obtain the 7-piece tablebases?

Supercomputers provide transparent (via kernel related special software) access to all memory as a globally adressable block, though it is not fastest possible approach (penalty can be 10-20x times, in some cases 100-1000x times). Specially written algo can be faster, but any cluster-unaware program...
by yurikvelo
Sun Jun 21, 2020 9:19 pm
Forum: Computer Chess Club: General Topics
Topic: How to automate 4 runs of Monte-Carlo (AB + NN)
Replies: 1
Views: 197

Re: How to automate 4 runs of Monte-Carlo (AB + NN)

Another question about Ponder=On To run engine matches I've used only Arena and Chessbase GUI With Ponder=On (PermanentBrain in Chessbase) only side-to-start is allowed to compute after game is started. Opposite side get run command only after first side has made move. Then it goes fine. Is this lim...
by yurikvelo
Sun Jun 21, 2020 12:49 pm
Forum: Computer Chess Club: General Topics
Topic: How to automate 4 runs of Monte-Carlo (AB + NN)
Replies: 1
Views: 197

How to automate 4 runs of Monte-Carlo (AB + NN)

For a given position (FEN or PGN) I want to run 4 different engine games and store 4 outcomes (TCEC-style early adjudication is favorable): 1) AB-engine vs itselft (e.g. Stockfish) 2) NN vs itselft (e.g. Lc0) 3) AB engine [as white] vs NN engine 4) AB engine [as black] vs NN engine Is there any tool...
by yurikvelo
Sun Jun 21, 2020 11:53 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish Handicap Matches
Replies: 180
Views: 3634

Re: Stockfish Handicap Matches

What is definition of "able to win"?
Win match or a single game?
by yurikvelo
Sun Jun 21, 2020 10:31 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: For how long will Stockfish be competitive versus the best NN ?
Replies: 78
Views: 11309

Re: For how long will Stockfish be competitive versus the best NN ?

500 Games Book = 8moves_v3.pgn Time = 10' + 3" Ponder = On (game duration 20-35 minutes) Sygyzy = 6-man SSD Stockfish = 2020/06/06/16 @ 4 CPU (5200 MN/sec @ startpos) Lc0 = weights_run1_63702.pb.gz (320x24) @ GTX-1650 (3095 nps @ startpos) +30 -40 =430 Leela: 23 white wins, 7 black wins SF: 27 whit...