Search found 1394 matches

by Ajedrecista
Sat Jul 23, 2011 8:09 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Perft(13) betting pool
Replies: 576
Views: 691964

Re: Perft(13) betting pool

Hello people: I have tried my idea with lower plies (n = 9, 11) for seeing if the numbers that I calculate are right or wrong. They are wrong (did anybody doubt it?), but they are wrong in less than 0.3%! First I start with Perft(9) and then Perft(11). Keep in mind that all is made by hand (with the...
by Ajedrecista
Fri Jul 22, 2011 3:22 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Perft(13) betting pool
Replies: 576
Views: 691964

Re: Perft(13) betting pool

Hi Daniel: There is not a real formula: I visited François Labelle's web, and when I saw one of his graphs (the one with logarithmic scale that data suit in a line) one kind of inspiration came to me (not joking) and I started to calculate some ratios. The one that I finally used was: {log[Perft(n)]...
by Ajedrecista
Fri Jul 22, 2011 11:15 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Perft(13) betting pool
Replies: 576
Views: 691964

Re: Perft(13) betting pool

Hi again: There is a typo in both PDF's I uploaded: 'alpha(n) > beta(n)' is wrong; right is: '|alpha(n)| > |beta(n)|' (with absolute values). This typo does not change my final estimate: Perft(13) ~ 1.980465e+18 ± 0.013% . I will not upload another PDF (two are enough, IMO). I include this correctio...
by Ajedrecista
Wed Jul 20, 2011 4:44 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Perft(13) betting pool
Replies: 576
Views: 691964

Re: Perft(13) betting pool

Hi everyone! I also made my own estimate on Perft(13) because it seems that everybody has made his/her own one! I am not so smart for thinking in methods like Muller, Blass/Schüle, Shawul or Österlund (for example), so my estimate is another Hocus-Pocus: my number is, more less: 1.980465·10^(18) ± 0...