Search found 74 matches

by MOBMAT
Mon Aug 26, 2019 8:19 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: Computer Olympiad Rules
Replies: 1
Views: 523

Computer Olympiad Rules

I see that the 2019 CO has completed. Congrats the HGM for his 2nd and 3rd in the Shogi events.

Can someone please provide a URL that has the official rules for different games played in the Computer Olympiad? I can't seem to locate them.
by MOBMAT
Wed Aug 21, 2019 1:38 pm
Forum: Computer Chess Club: General Topics
Topic: FEN's for other games
Replies: 7
Views: 560

Re: FEN's for other games

Thanks, Harm, now we are getting somewhere. I appreciate your input. I think the FEN standard can work. * You indicate empty squares separately, instead of combining a contiguous range and write their number I had corrected my post to change the "--" to a 2. It appears the main decision is to what t...
by MOBMAT
Tue Aug 20, 2019 6:19 pm
Forum: Computer Chess Club: General Topics
Topic: FEN's for other games
Replies: 7
Views: 560

Re: FEN's for other games

I did say (not yet Chess), so pick one. checkers, othello, clobber, breakthrough, GO. anything BUT chess. FEN was designed to provide a solution for chess. I am proposing a similar solution for other games. I never want to believe I'm the first person to think of something, so hence the question. I'...
by MOBMAT
Tue Aug 20, 2019 2:24 pm
Forum: Computer Chess Club: General Topics
Topic: FEN's for other games
Replies: 7
Views: 560

FEN's for other games

I've implemented a number of game engines using MCTS (not yet chess) and I have the need to set up test positions from time to time. Having FEN-like capabilities would be nice, and easy to implement, but I didn't want to reinvent the wheel or create yet another format that might not be in use by oth...
by MOBMAT
Mon Aug 12, 2019 12:58 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Bitboard logic: identifying 4 squares in a block
Replies: 8
Views: 1062

Re: Bitboard logic: identifying 4 squares in a block

Let me elaborate. - - - - - - - - x x - - - - - x x - - - - - - - - - - - - - - - - - - The diagram above shows 4 'on' bits adjacent to each other in the shape of a square. There might be additional bits "touching" these four, the test is, is there ANY 4 bits in this pattern. A square of four can oc...
by MOBMAT
Sun Aug 11, 2019 9:56 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Bitboard logic: identifying 4 squares in a block
Replies: 8
Views: 1062

Bitboard logic: identifying 4 squares in a block

I want to be able to identify a pattern of 4 pieces forming a square anywhere on a board, such as: - - - - - - - - x x - - - - - x x - - - - - - - - - - - - - - - - - - The board could be any size. The pattern can occur anywhere on the board, so, depending on the size of the board, there are a lot o...
by MOBMAT
Sun Feb 24, 2019 2:06 am
Forum: Chess Players Forum
Topic: Has to be a mistake
Replies: 5
Views: 3305

Re: Has to be a mistake

[Event "Villarrobledo op"] [Site "Villarrobledo"] [Date "1997.08.23"] [Round "5"] [White "Shirov, Alexei"] [Black "Ljubojevic, Ljubomir"] [Result "1/2-1/2"] [BlackElo "2565"] [ECO "B81"] [Opening "Sicilian"] [Variation "Scheveningen, Keres, Perenyi Attack, 7...h6 8.f4"] [WhiteElo "2700"] [TimeContro...
by MOBMAT
Fri Feb 22, 2019 8:45 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: MCTS implementation question
Replies: 2
Views: 950

MCTS implementation question

I'm working the code for an MCTS implementation. I'm coding Tic-Tac-Toe as an easy GAME to work out the bugs. I'm running into a situation where either: 1. The code is working fine and i'm just not sure what to do 2. I haven't implemented something correctly (usually this one! LOL) The question has ...
by MOBMAT
Wed Feb 06, 2019 6:17 am
Forum: Computer Chess Club: General Topics
Topic: start your engines...
Replies: 14
Views: 2028

Re: start your engines...

Houdini 1.5a finds it. FEN: q4bk1/pb4p1/1p2pp2/3n3p/2NP4/1P3BP1/PB3P1P/R1R3K1 b - - 0 1 + Houdini 15a: 4 00:00 3k 0 +0.18 1. ... h4 2.Ne3 Nxe3 3.Bxb7 Qxb7 4.fxe3 hxg3 5.hxg3 5 00:00 5k 0 +0.22 1. ... h4 2.Be4 b5 3.Ne3 Nxe3 4.Bxb7 Qxb7 5.fxe3 hxg3 6.hxg3 6 00:00 13k 0 +0.35 1. ... h4 2.Be4 Nb4 3.Bb1 ...
by MOBMAT
Wed Feb 06, 2019 4:15 am
Forum: Computer Chess Club: General Topics
Topic: start your engines...
Replies: 14
Views: 2028

Re: start your engines...

Equinox 3.30 finds it! FEN: q4bk1/pb4p1/1p2pp2/3n3p/2NP4/1P3BP1/PB3P1P/R1R3K1 w - - 0 1 + Equinox 3.30: 10 00:00 53k 1,722k +0.36 0. ... Nb4 1.Bxh5 Nd3 2.Bg4 f5 3.Be2 Nxc1 4.Rxc1 Bf3 5.Bxf3 Qxf3 6.Ne5 Qe2 11 00:00 69k 1,461k +0.32 0. ... Nb4 1.Be2 Bf3 2.Bf1 Nc6 3.Nd2 Bd5 4.Bd3 Qc8 5.Ne4 Bb4 12 00:00...