Search found 3803 matches

by jdart
Wed Apr 29, 2020 1:42 pm
Forum: Computer Chess Club: General Topics
Topic: Mega database 2020 updates
Replies: 2
Views: 749

Re: Mega database 2020 updates

You didn't say what error message you got.

Importing games works for me. Worst case, you may need to reinstall the Meta database.

--Jon
by jdart
Mon Apr 27, 2020 9:27 pm
Forum: Computer Chess Club: General Topics
Topic: Syzygy Tablebases Bug
Replies: 14
Views: 2063

Re: Syzygy Tablebases Bug

You can report the issue to ChessBase: info@chessbase.com.
by jdart
Mon Apr 27, 2020 7:12 pm
Forum: Computer Chess Club: General Topics
Topic: Arasan-Stooflees, TCEC Cup 5 2020
Replies: 2
Views: 624

Arasan-Stooflees, TCEC Cup 5 2020

Arasan lost this game in the endgame after being even for a long time. Some analysis with Houdini 6 indicated to me that Ne1 might possibly draw here: 6k1/6p1/p4r2/1p1Pp2P/1P2P2P/P3QNK1/8/q7 w - - But Stockfish 11 did not find this in half an hour of search: 6k1/6p1/p4r2/1p1Pp2P/1P2P2P/P3QNK1/8/q7 w...
by jdart
Mon Apr 27, 2020 5:36 pm
Forum: Computer Chess Club: General Topics
Topic: Test Position: Rook Sac from WCRCC 2013
Replies: 33
Views: 5666

Re: Test Position: Rook Sac from WCRCC 2013

In the c4+ position, Rd1+ is just as good (transposes): 2r2b2/5Q2/1pq1p1p1/1p1k4/1P6/2P4P/P5P1/4R2K w - - bm c4+; c0 "Nightmare-Arasan, WCRCC 2013 (analysis)"; depth 60 seldepth 98 multipv 1 score +461 nodes 99570341402 nps 55316825 hashfull 944 tbhits 0 time 1800.001 pv c4+ bxc4 Rd1+ Ke5 Qxg6 Qe4 Q...
by jdart
Sat Apr 25, 2020 2:43 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Introduction and new rookie engine in progress
Replies: 6
Views: 1073

Re: Introduction and new rookie engine in progress

Code: Select all

Lastly, what chess gui would you recommend I support initially 
Most engines now support the UCI protocol (http://wbec-ridderkerk.nl/html/UCIProtocol.html), which works with multiple GUIs (Fritz, Chessbase, Shredder, Arena, Winboard, etc.).

--Jon
by jdart
Fri Apr 24, 2020 2:21 am
Forum: Computer Chess Club: General Topics
Topic: New release: rofChade 2.3
Replies: 14
Views: 1881

Re: New release: rofChade 2.3

I don't like that dynamically linked stuff at all, it's a remnant of the past, at that time storage and memory were so small that it sounded like a good idea. I agree. I always link statically on Windows. A lot of my users are not technical and don't know what a .dll is or how to download the MSVC ...
by jdart
Tue Apr 21, 2020 12:50 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Allowing null move pruning in the endgame.
Replies: 5
Views: 573

Re: Allowing null move pruning in the endgame.

> Have you tried allowing null moves as long as the side to move has 1 or more non-pawn pieces?

That is usually safe. But I have had to reduce null pruning also for the case where there is one minor on board.

--Jon
by jdart
Tue Apr 21, 2020 12:47 am
Forum: Computer Chess Club: General Topics
Topic: Carlsen is leading the Online Invitation LIVE
Replies: 32
Views: 4690

Re: Carlsen is leading the Online Invitation LIVE

Firouzja is impressive. He played in the Master's group at Wijk aan Zee earlier this year, and only came in the middle of the standings, but that was against a group of super-grandmasters.
by jdart
Sat Apr 18, 2020 2:13 pm
Forum: Computer Chess Club: General Topics
Topic: italien opening
Replies: 28
Views: 4751

Re: italien opening

Is it really meaningful to have this discussion about an opening that a zillion sublines? If you want to talk about a specific line, that is another thing.
by jdart
Sat Apr 18, 2020 12:29 am
Forum: Computer Chess Club: General Topics
Topic: test for pruning
Replies: 8
Views: 911

test for pruning

I have been looking recently at this position from an offline game: 4r3/5pk1/1q1r1p1p/1p1Pn2Q/1Pp4P/6P1/5PB1/R3R1K1 b - - Black played f5! and won. Arasan did not anticipate this move. It looks like excessive pruning is making it "blind" in this position. I have recently pushed a fix that scales bac...