## Search found 1404 matches

Wed Jul 17, 2019 7:22 pm
Forum: Computer Chess Club: General Topics
Topic: Math question
Replies: 34
Views: 4606

### Re: Math question.

Hello Ed: I worked a little in an own method which could be unsound but gives some results that may suit your needs: For each i-th opening move: n_i = w_i + d_i + l_i µ_i = (w_i + 0.5*d_i)/(w_i + d_i + l_i) q_i = µ_i * (n_i)^a Weight_i = q_i / SUM(q_i) // SUM(Weight_i) = 100% Using your input values...
Tue Jul 16, 2019 7:55 pm
Forum: Computer Chess Club: General Topics
Topic: Math question
Replies: 34
Views: 4606

### Re: Math question.

Hello Ed: While this works reasonable well in practice the numbers of losses is not part of the calculation and actually it should. I think that the number of loses is hidden in (2*won+draw)*100 / (2*total_win+total_draw). Let me explain. Try the following: For each i-th opening move: n_i = w_i + d_...
Fri Jul 12, 2019 7:23 am
Forum: Computer Chess Club: General Topics
Topic: Winning endgame for black?
Replies: 4
Views: 949

### Re: Winning endgame for black?

Hello: I'm downloading KRBNPvKQ and KRBNvKQP table that might turn the tide of analysis. Good luck! Assuming that you have all sub-7 tablebases, don't forget the pawnless tablebases related to KRBNPvKQ and KRBNvKQP, that is, if the pawn promotes and is not captured. http://tablebase.lichess.ovh/tabl...
Mon Jul 08, 2019 6:11 pm
Forum: Computer Chess Club: General Topics
Topic: Evidence that the release of Houdini 7 is imminent?
Replies: 20
Views: 5459

### Re: Evidence that the release of Houdini 7 is imminent?

Hello Gary: https://lichess.org/@/Houdini_x64bit It's only been a member of Lichess since 30 June 2019. Who knows if that account is real or troll. Anyway, here is more material: https://lichess.org/forum/team-lichess-bots/how-to-make-your-bot-more-powerful#10 Use Houdini 7.01 [...] (Being released ...
Fri Jul 05, 2019 7:17 am
Forum: Computer Chess Club: General Topics
Topic: Fireworks for the Fourth
Replies: 17
Views: 2503

### Re: Fireworks for the fourth.

Hello: [...] [Event "50m/10m"] [Date "2019.06.11"] [Round "1"] [White "CyberNezh"] [Black "Amyan 1.72"] [Result "1-0"] [ECO "C06"] [BlackElo "2600"] [PlyCount "77"] [EventDate "2019.??.??"] 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4.e5 Nfd7 5. c3 c5 6. Bd3 cxd4 7. cxd4 Nc6 8. Ne2 f6 9. f4 fxe5 10. fxe5 Nxd4 11....
Sat Jun 22, 2019 10:54 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: which engine should win
Replies: 2
Views: 702

### Re: Which engine should win?

Hello: which engine should win in a ten game 5 minute blitz tournament: Komodo 13.02, Shashchess 8, Stockfish 10, or SugaR XPro 1.6.1? Every thing is pretty much default; threads = 4. All engines x64. There is a Round-Robin simulator that can simulate the outcome of a Round-Robin tournament with som...
Thu Jun 13, 2019 5:37 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: max number of pseudo legal move
Replies: 29
Views: 5785

### Re: Maximum number of pseudo legal moves.

Hello Roland: [...] By the way, the official JetChess web page no longer exists. Would you know another place where one can download it? The web is still reachable with the help of Wayback Machine: https://web.archive.org/web/20171119065123/zipproth.de/jetchess The direct link of the download works ...
Tue Jun 11, 2019 8:58 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: max number of pseudo legal move
Replies: 29
Views: 5785

### Re: Maximum number of pseudo legal moves.

Hello Mike: [...] Real world, from real games , not proof games, the record as far I know is 79 moves. I performed a search once , using a move generator on 1 million games and found a game with 78 possible moves . I posted the game here, years ago - maybe 10 to 13 years ago. The real game record: h...
Tue May 28, 2019 6:00 pm
Forum: Computer Chess Club: General Topics
Topic: Can't for the life of me find that solution
Replies: 11
Views: 2445

### Re: Can't for the life of me find that solution

Hello: don't you need depth 48 to find the mate #24 ? It depends on the unit of measure. Usual engines search X depths which means X plies (1 ply = 1 half move), but Chest mate solver has the option of 'SearchDepth n' which means n moves (understanding one move as two plies). In a problem of 'checkm...
Sat May 11, 2019 9:10 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: win-chance for each root move
Replies: 19
Views: 3145

### Re: win-chance for each root move

Hello: So 1.Na3 is the best move of all! :lol: I ran a script on 1.5M games and my results look like this: move # white draw black b1a3 72 48.611111% 5.555556% 45.833333% f2f3 162 46.913580% 6.172840% 46.913580% a2a4 160 46.875000% 10.000000% 43.125000% g2g4 1210 46.694215% 11.983471% 41.322314% b2b...