Search found 303 matches

by Roland Chastain
Tue Oct 20, 2020 12:15 pm
Forum: Computer Chess Club: General Topics
Topic: Cinnamon 2.3
Replies: 11
Views: 445

Re: Cinnamon 2.3

now can I do e8g8? is it a valid castle? Of course it isn't e8g8 but g8e8. Yes, I would say it is valid. For perft 1, Alouette says 38 but maybe it is wrong. :? Alouette 0.1.3 setoption name UCI_Chess960 value true position fen 2nnrbkr/p1qppppp/8/1ppb4/6PP/3PP3/PPP2P2/BQNNRBKR w HEhe - 0 1 moves f1...
by Roland Chastain
Tue Oct 20, 2020 9:06 am
Forum: Computer Chess Club: General Topics
Topic: A Book For a Vintage Program
Replies: 2
Views: 147

Re: A Book For a Vintage Program

Hello! I don't know exactly what kind of book you are looking for, but for me I was glad when I discovered that I could use pgn-extract to build books in what I called "TSCP format" (maybe the good format for a vintage program), from pgn files. So I downloaded collections of grandmasters games and, ...
by Roland Chastain
Tue Oct 20, 2020 5:31 am
Forum: Computer Chess Club: General Topics
Topic: Cinnamon 2.3
Replies: 11
Views: 445

Re: Cinnamon 2.3

I made another test, running CuteChess with -debug option. Here is a command on which Cinnamon disconnects: 25689 >Cinnamon 2.3(0): position fen qnrnbkrb/pppppppp/8/8/8/8/PPPPPPPP/QNRNBKRB w GCgc - 0 1 moves g2g3 f8g8 d1e3 e7e6 d2d4 f7f5 d4d5 b8a6 e1c3 c7c6 d5e6 d8e6 e3f5 f8f5 25689 >Cinnamon 2.3(0)...
by Roland Chastain
Tue Oct 20, 2020 2:38 am
Forum: Computer Chess Club: General Topics
Topic: Sam retouched for CuteChess
Replies: 2
Views: 199

Re: Sam retouched for CuteChess

SamChess is a fun little program, and despite being very compact, it's fairly easy to read and understand. It took very little effort for me to change it to play variants like Knightmate and Knightrider chess. Yes, the code is easy enough to understand. By the way, I have all your versions. I even ...
by Roland Chastain
Mon Oct 19, 2020 7:10 pm
Forum: Computer Chess Club: General Topics
Topic: Cinnamon 2.3
Replies: 11
Views: 445

Re: Cinnamon 2.3

Chess 960 Good new! Glad to know that there is one more engine playing FRC. I have made a quick test, a tournament with CuteChess. It seems that there are things to fix. When you switch to FRC, there are always things to fix. :) I didn't have time to investigate, just copied the games in a PGN file...
by Roland Chastain
Mon Oct 19, 2020 5:20 pm
Forum: Computer Chess Club: General Topics
Topic: Sam retouched for CuteChess
Replies: 2
Views: 199

Sam retouched for CuteChess

Hello! I retouched Sam to make it compatible with CuteChess. As you maybe know, CuteChess considers illegal a promotion move without the piece symbol. Some time ago, I had suggested to CuteChess developers to be less strict on that point, but they refused, which is their right. So when I have time I...
by Roland Chastain
Sun Oct 18, 2020 9:32 pm
Forum: Computer Chess Club: General Topics
Topic: Another XBoard engine derived from Minimax Basic
Replies: 1
Views: 188

Re: Another XBoard engine derived from Minimax Basic

I uploaded Windows binaries: minimax.zip I still have to find a name. Maybe Minimax II... Rank Name Elo + - games score oppo. draws 1 Needle 0.53.1 977 288 211 8 88% 647 0% 2 Winglet 916 244 205 8 81% 663 13% 3 Irina 0.15 770 189 172 16 75% 494 0% 4 Minnow 20150301 742 174 145 16 88% 421 25% 5 Quokk...
by Roland Chastain
Sun Oct 18, 2020 11:29 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Engine playing twice the same move in a CuteChess tournament
Replies: 8
Views: 310

Re: Engine playing twice the same move in a CuteChess tournament

That's why I maintain a validity flag after evaluating the "position" command (UCI). If the FEN or the move list is illegal, I write out the problem's cause with "info string error (problem description)" . A subsequent "go" command will be answered with "bestmove 0000" . Then it's easy to evaluate ...
by Roland Chastain
Sun Oct 18, 2020 11:24 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Engine playing twice the same move in a CuteChess tournament
Replies: 8
Views: 310

Re: Engine playing twice the same move in a CuteChess tournament

Your engine has a bug, which I pointed out in another thread (about c-chess-cli). When receiving "position fen ... moves ...", it discards the moves. Have you fixed it ? Yes, it's true, but I don't believe this be the same problem. For traditional chess, CuteChess uses "position startpos ..." synta...
by Roland Chastain
Sun Oct 18, 2020 10:49 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Engine playing twice the same move in a CuteChess tournament
Replies: 8
Views: 310

Re: Engine playing twice the same move in a CuteChess tournament

Terje wrote:
Sun Oct 18, 2020 10:28 am
Can also happen if the last moves before this were discarded for any reason (input buffer too small, incorrect validation of moves..), as the engine would think it was playing the same position again.
Ah, yes, there is also that possibility. I didn't think of it. Thank you.