Search found 3705 matches

by jdart
Mon Nov 18, 2019 4:42 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: E8400 CHESS ENGINE PERMANENT LADDER
Replies: 3
Views: 478

Re: E8400 CHESS ENGINE PERMANENT LADDER

Best used of this game? It is probably for "bookmaking" I tend not to use engine tournament games with small to medium fixed books for book creation, because even strong engines like Stockfish still often play quite poorly when exiting the book. But I do use engine games with less limited books fro...
by jdart
Mon Nov 11, 2019 12:32 am
Forum: Computer Chess Club: General Topics
Topic: Arasan's dubious (?!) move.
Replies: 4
Views: 564

Re: Arasan's dubious (?!) move.

Arasan evaluates a Queen as worth about 3 minors plus a pawn. It has special case adjustments for many material configurations but not for Queen vs. 3 minors, which is fairly rare.

--Jon
by jdart
Fri Nov 01, 2019 5:14 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: some questions about singular search in Stockfish
Replies: 3
Views: 673

some questions about singular search in Stockfish

I am looking again at how Stockfish does this but there are a couple of things that puzzle me. One is that there's some code at search.cpp, line 651 to modify the hash key if a singular search is being done. But it looks like nothing is ever stored in the hash table after a singular search, due to t...
by jdart
Tue Oct 29, 2019 5:15 pm
Forum: Computer Chess Club: General Topics
Topic: Tactics cannot be very important for chess
Replies: 90
Views: 4399

Re: Tactics cannot be very important for chess

Many, many chess games are won with a gradually increasing eval for the winning side. So there really is no tactical moment where the game is won, there is just increasing pressure and eventually conversion into a mate. Carlsen is this type of player, generally: he is just really good at squeezing a...
by jdart
Sat Oct 26, 2019 4:56 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Another take on DTS?
Replies: 20
Views: 1570

Re: Another take on DTS?

I realize a lot of end users don't have large multicore systems but I think many chess programmers do. I have 160 cores total, including four computers with 32 cores each. There is also TCEC, which is running on very big x86 hardware, 256 threads I think in the current edition. I don't get to do tes...
by jdart
Sat Oct 26, 2019 12:52 am
Forum: Computer Chess Club: General Topics
Topic: Fritz 17
Replies: 264
Views: 20012

Re: Fritz 17

dkappe wrote:
Fri Oct 25, 2019 7:06 pm

Of course the network weights are not covered by the GPL but by whatever license ChessBase applies to it.
I don't think this would fly under the GPL. You can't release GPL code that is not functional without some additional data file that is not GPL.
by jdart
Sat Oct 26, 2019 12:49 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: The Battle
Replies: 13
Views: 1223

Re: The Battle

Lc0 is on what hardware? Is it CPU or GPU?

--Jon
by jdart
Tue Oct 22, 2019 1:35 pm
Forum: Computer Chess Club: General Topics
Topic: interesting TCEC game/test position
Replies: 4
Views: 357

interesting TCEC game/test position

ScorpioNN played an amazing game in the current TCEC Cup tournament: [Event "TCEC Cup 4 Round16"] [Site "https://tcec-chess.com"] [Date "2019.10.22"] [Round "1.13"] [White "ScorpioNN v3.0.3-n_maddex_INT"] [Black "Ethereal 11.63"] [Result "1-0"] [ECO "E60"] [WhiteElo "3707"] [BlackElo "3746"] [PlyCou...
by jdart
Tue Oct 15, 2019 1:33 am
Forum: Computer Chess Club: General Topics
Topic: game showing some blindness by Lc0
Replies: 7
Views: 1239

Re: game showing some blindness by Lc0

This was a rapid game so White may not have had 30 seconds to make the right move, and would have required even more than that if running on lesser hardware. Stockfish will find Qxd3 right away.