Search found 25 matches

by Tord
Sat Jul 03, 2021 6:04 am
Forum: Computer Chess Club: General Topics
Topic: Drawmaster Stockfish
Replies: 2
Views: 518

Re: Drawmaster Stockfish

You don't need a custom engine for that. Just use any UCI engine, put it in MultiPV mode, and pick the move with evaluation closest to 0 rather than the best move.
by Tord
Fri Jul 02, 2021 8:08 am
Forum: Computer Chess Club: General Topics
Topic: A Stockfish that tries to lose every game of chess
Replies: 14
Views: 1865

Re: A Stockfish that tries to lose every game of chess

towforce wrote:
Fri Jul 02, 2021 8:04 am
Here's a starter challenge: find a position in which you can force the opponent to beat you!
That's actually a somewhat common problem type in the world of chess problems. Here are a few examples:

https://www.ozproblems.com/problem-world/selfmates
by Tord
Wed Jun 30, 2021 7:42 am
Forum: Computer Chess Club: General Topics
Topic: I declare that HCE is dead...
Replies: 54
Views: 7478

Re: I declare that HCE is dead...

Pointless only when trying to get the highest Elo overall. Others may prefer to have the ability to create specific playing personalities, whether human-like, anti-human, or Tal-like play-to-win attacking styles that the HCE could allow by means of tunable parameters. I see no reason to believe tha...
by Tord
Sat Jun 19, 2021 10:29 am
Forum: Computer Chess Club: General Topics
Topic: PieceList in older versions of Glaurung Chess Engine.
Replies: 3
Views: 994

Re: PieceList in older versions of Glaurung Chess Engine.

I wrote a long reply to this, but unfortunately, the board ate it. I don't have time to retype everything, but I hope a shorter version will be comprehensible. You're looking at a very old Glaurung version. Any particular reason you are interested in it? I find it embarrassing to look at that old co...
by Tord
Mon May 03, 2021 7:54 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Chess.jl – new version
Replies: 4
Views: 3038

Re: Chess.jl – new version

That's an impressive first program! Two little details: You do things like bd = g.node.board to extract the current board position of the game. This works, but depends on the internal representation of the `Game` data type, which is not recommended. I would do just bd = board(g) instead. This has th...
by Tord
Fri Apr 30, 2021 3:14 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Chess.jl – new version
Replies: 4
Views: 3038

Chess.jl – new version

I just released a version 0.7 of the Chess.jl library.

The main new features this time are better support for Pluto notebooks, a built-in opening book, and much better documentation. The tutorial is now also available as a downloadable Pluto notebook.
by Tord
Thu Mar 25, 2021 3:13 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: FEN compression
Replies: 21
Views: 9226

Re: FEN compression

I use this one, which (if I understand his code correctly) is quite similar to Andrew's: """ compress(b::Board) Compresses a board into a byte array of maximum 26 bytes. Use the inverse function `decompress` to recover a compressed board. """ function compress(b::Board)::Vector{UInt8} io = IOBuffer(...
by Tord
Tue Feb 16, 2021 10:58 am
Forum: Computer Chess Club: General Topics
Topic: Havoc - New Gothic chess engine
Replies: 22
Views: 5141

Re: Havoc - New Gothic chess engine

I am not sure the extra ranks really make the board less crowded, as the battle is still concentrated in the central 10x8 area, due to the initial setup placing the pieces on rank 2 and 3. And promotion is even closer than in Capablanca/Gothic, due to the deeper zone. But you could be right. Anyway...
by Tord
Tue Feb 16, 2021 10:08 am
Forum: Computer Chess Club: General Topics
Topic: Havoc - New Gothic chess engine
Replies: 22
Views: 5141

Re: Havoc - New Gothic chess engine

How about 10x10 chess? I'm tempted to give Grand Chess (https://en.wikipedia.org/wiki/Grand_chess) a try later this year. I haven't tried playing any of these large-board variants for more than a handful of games, but Grand Chess always looked like the most attractive of them to me. I never have re...
by Tord
Mon Feb 15, 2021 2:21 pm
Forum: Computer Chess Club: General Topics
Topic: Havoc - New Gothic chess engine
Replies: 22
Views: 5141

Re: Havoc - New Gothic chess engine

Great job! And yes, once you have watched a few games of 10x8 chess, the orthodox FIDE version suddenly seems exceptionally dull... How about 10x10 chess? I'm tempted to give Grand Chess (https://en.wikipedia.org/wiki/Grand_chess) a try later this year. I haven't tried playing any of these large-bo...