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by Dann Corbit
Mon Mar 18, 2019 7:19 pm
Forum: Computer Chess Club: General Topics
Topic: Hard engine puzzles
Replies: 7
Views: 371

Re: Hard engine puzzles

My database had this: k1q5/2P3PP/p5p1/P5p1/PP4P1/1QK1n3/3p4/r3r2N w - - acd 50; acs 31200; bm g8=Q; c3 "g8=Q"; c6 Arves.15709; ce 218; pm g8=Q; pv g8=Q Ka7; 6K1/3p1pPN/r7/1p3kP1/8/1P4b1/2P1P3/8 w - - acd 36; acs 60; bm e4+; c3 "e4+"; c6 Arves.06602; ce 179; pm e4+; pv e4+ Ke6 Nf8+ Ke7 Kh7 Ra8 g6 Be5...
by Dann Corbit
Mon Mar 18, 2019 7:09 pm
Forum: Computer Chess Club: General Topics
Topic: PCI express 4
Replies: 5
Views: 328

Re: PCI express 4

PCI Express 4 affects everything that uses that interface.
The new AMD 7nm stuff is specifically designed to support it.
by Dann Corbit
Mon Mar 18, 2019 7:05 pm
Forum: Computer Chess Club: General Topics
Topic: Humorous study claimed to be winning for white
Replies: 3
Views: 345

Re: Humorous study claimed to be winning for white

I only have a shallow search for this one. 1r2bb1k/4p3/2pn1p2/pp2p3/1Pr5/N2BPP1n/RBPPNP2/4K1R1 w - - acd 38; acs 581; bm Rh1; c3 "Rh1"; c6 Arves.01179; ce 98; pm Rh1; pv Rh1 Rh4 Ng1 Bf7 Ra1 axb4 Nb1 Be6 Bf1 c5 Bxh3 Bf5 d3 c4 e4 Be6 dxc4 bxc4 c3 b3 Ra7 Nb7 Ba3 Nd6 Bb4 Nc8 Ra6 Nd6 Bg2 Rxh1 Bxh1 Rd8 Ra...
by Dann Corbit
Fri Mar 15, 2019 7:28 pm
Forum: Computer Chess Club: General Topics
Topic: SF mates Leela in 25 moves at CCC
Replies: 10
Views: 559

Re: SF mates Leela in 25 moves at CCC

Game as EPD: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - bm e4; c0 "Stockfish"; c3 "1-0"; rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - bm Nf6; c0 "Lc0"; c3 "1-0"; rnbqkb1r/pppppppp/5n2/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - bm e5; c0 "Stockfish"; c3 "1-0"; rnbqkb1r/pppppppp/5n2/4P3/8/...
by Dann Corbit
Thu Mar 14, 2019 7:46 pm
Forum: Computer Chess Club: General Topics
Topic: statistics about mates from tablebases
Replies: 3
Views: 224

Re: statistics about mates from tablebases

This is how I found them:

Code: Select all

select * from Epd a, Epd b 
where  a.Epd LIKE '% w %' 
AND b.Epd LIKE '% b %' 
AND LEFT(a.Epd, CHARINDEX(' w ', a.Epd) - 1) = LEFT(b.Epd, CHARINDEX(' b ', b.Epd) - 1) 
and a.dm = b.dm
by Dann Corbit
Thu Mar 14, 2019 7:40 pm
Forum: Computer Chess Club: General Topics
Topic: statistics about mates from tablebases
Replies: 3
Views: 224

Re: statistics about mates from tablebases

17,633 exactly reversible mates (IOW, if the side to move changes, it is mate for the other side in the exact same number of moves): https://drive.google.com/open?id=1FIEo2b8OVx6CyxnOZcXUQl9W6bV4suk- I was going to attach it, but the forum software said it was too big. Most of these are not tablebas...
by Dann Corbit
Thu Mar 14, 2019 6:06 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: How to cut these pgn games.
Replies: 39
Views: 533

Re: How to cut these pgn games.

You need a trailing asterisk in the PGN body text after trimming.
Seems like you are simply looking for a named opening db.

Maybe you want something like this:
https://drive.google.com/open?id=1LZsVP ... U_-jZvxINR
by Dann Corbit
Wed Mar 13, 2019 3:48 am
Forum: Computer Chess Club: General Topics
Topic: Test set, quick.epd
Replies: 2
Views: 116

Re: Test set, quick.epd

These have bad scores:
r1b1Rbk1/pp3p2/2npN2p/2qp2p1/8/1QPB3P/PP3PPB/6K1 b - -
rnbq1b1r/ppp1p1pp/1n1p2k1/4P1N1/8/5Q2/PPPP1PPP/RNB1K2R b KQ -
2kr3r/ppp3pp/2pbbn2/4N3/3Pp3/2P3Pq/PP1NQP1P/R1B2RK1 w - -
r2q1rk1/p1p3pp/b2bp3/2pp4/6p1/2NPPN2/PPP2PP1/R1BQR1K1 w - -
by Dann Corbit
Mon Mar 11, 2019 10:38 pm
Forum: Computer Chess Club: General Topics
Topic: A tribute to chess programming community
Replies: 2
Views: 220

Re: A tribute to chess programming community

I would skip the unicode output and just print a text representation. bmcp-commented.c(136) : warning C4566: character represented by universal-character-name '\u265F' cannot be represented in the current code page (1252) bmcp-commented.c(136) : warning C4566: character represented by universal-char...
by Dann Corbit
Mon Mar 11, 2019 10:33 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Creating a spoon of TSCP181
Replies: 13
Views: 547

Re: Creating a spoon of TSCP181

I'm too old to start a chess engine from scratch. And my own engines are not a simple enough starting point for a spoon. So I have started a spoon of TSCP181 by Tom Kerrigan. What is spooning? I think that I just made it up. Anyway, spooning is starting with someone else's source code and over time...

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