Search found 452 matches

by IanO
Sun Aug 16, 2020 12:55 pm
Forum: Computer Chess Club: General Topics
Topic: Larry Kaufman
Replies: 37
Views: 5956

Re: Larry Kaufman

I am also extremely grateful for all of Larry Kaufman's contributions to computer chess. His treatise on Handicap Shogi is also one of the only sources of deep shogi knowledge available to western students of shogi. In fact, wasn't Larry the one who urged the NNUE cross-pollination between computer ...
by IanO
Wed Jun 10, 2020 10:28 pm
Forum: Computer Chess Club: General Topics
Topic: Leela and the curse of not finishing a won match cleanly.
Replies: 11
Views: 2158

Re: Leela and the curse of not finishing a won match cleanly.

Another possibility is to use stricter endgame counts which subsume the 50-move rule when training. As an example, consider the Thai chess variant, Makruk. It has a host of different counts, which depend on the amount of material left.* Does anyone know if there is a project to apply the LC0 framewo...
by IanO
Thu May 28, 2020 11:31 pm
Forum: Computer Chess Club: General Topics
Topic: Is the Latvian losing?
Replies: 43
Views: 4258

Re: Is the Latvian losing?

Also, there's this historical gem: https://www.chessgames.com/perl/chessgame?gid=1044024 Fischer-Pupols is a rough gem, indeed. A teenage future master beats up the 12-year-old future world champ! There are many unpublished picturesque mates and faster attacks on the sidelines, well worth analyzing.
by IanO
Sat Jan 11, 2020 1:38 am
Forum: Computer Chess Club: General Topics
Topic: Funny contraption
Replies: 3
Views: 808

Re: Funny contraption

I'm even more impressed by this design for self-moving pieces: https://regiumchess.com/ Honestly, once I saw how it was implemented (a 3x3 grid of small, strong electromagnets under each square and captured piece area), I was amazed that nobody had tried it before. The mechanism is practically solid...
by IanO
Thu Dec 05, 2019 3:57 am
Forum: Computer Chess Club: General Topics
Topic: another hard position (mate in 18) from 1998, by Ed Shröder
Replies: 24
Views: 5600

Re: another hard position (mate in 18) from 1998, by Ed Shröder

Spark 1.0 gets it in a few seconds at depth 16. It is a better than average mate finder.
by IanO
Fri Nov 22, 2019 1:51 pm
Forum: Computer Chess Club: General Topics
Topic: New DeepMind paper
Replies: 18
Views: 3807

Re: New DeepMind paper [MuZero]

I can't believe the whole forum isn't a-buzz about this! The new algorithm MuZero is extending the zero knowledge concept by not even pre-programming the rules of the game! It is building the model from scratch based solely on board state transitions and expected rewards. All it is retaining is the ...
by IanO
Mon Sep 09, 2019 9:32 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Shogi Perft numbers
Replies: 28
Views: 6628

Re: Shogi Perft numbers

I've never concerned myself with perft in my game programs before, but is it supposed to detect checkmates in order to avoid playing past fools mates? I was wondering if perft 7 could be used to enumerate all the shortest mates in shogi. There are 29 mate positions at depth 7 : nodes = 15 086 269 6...
by IanO
Tue Sep 03, 2019 11:08 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Shogi Perft numbers
Replies: 28
Views: 6628

Re: Shogi Perft numbers

I've never concerned myself with perft in my game programs before, but is it supposed to detect checkmates in order to avoid playing past fools mates? I was wondering if

Code: Select all

perft 7
could be used to enumerate all the shortest mates in shogi.
by IanO
Tue Sep 03, 2019 7:20 pm
Forum: Computer Chess Club: General Topics
Topic: We lost our Pal
Replies: 7
Views: 2545

Re: We lost our Pal

I remember being impressed that an engine "discovered" the Benko Gambit in one of the bookless or 4-ply book TCEC sections, but I can't for the life of me remember which season and section that was. If anyone has the TCEC archives downloaded, I'd be grateful for a reminder.
by IanO
Thu Aug 29, 2019 5:23 pm
Forum: Computer Chess Club: General Topics
Topic: Komodo vs. Larry K on chess.com
Replies: 72
Views: 12465

Re: Komodo vs. Larry K on chess.com

I have some chances. Look for games of "playkomodo" vs " Hissha " (that's me). Thanks for your valiant effort! Your handle (Shogi rook) reminded me that you are also likely one of the more knowledgeable folks on the recent strength improvements in computer shogi. When do you think the shogi program...