Search found 17074 matches

by bob
Mon Jul 23, 2007 6:04 pm
Forum: Computer Chess Club: General Topics
Topic: Checkers Solved - Chess around year 2060-2070!
Replies: 100
Views: 38283

Re: Checkers Solved - Chess around year 2060-2070!

Sorry, but you can't _prove_ until you do search all pathways. That's the very definition of proof. "we think" does not mean "it is". Funny Jonathan found a better way! What other way? He pruned out the BS, concentrated on wins and draws etc. He reduced the problem by a huge number of useless posit...
by bob
Mon Jul 23, 2007 6:00 pm
Forum: Computer Chess Club: General Topics
Topic: Checkers Solved - Chess around year 2060-2070!
Replies: 100
Views: 38283

Re: Checkers Solved - Chess around year 2060-2070!

I don't follow your math. 10^50 bits requires at least 10^50 atoms, although in your case this appears to average 12.5 atoms per bit if I understand your measure correctly. You are way beyond the number of atoms in planet earth at that number. The issue would become one of size. No way to run at su...
by bob
Mon Jul 23, 2007 4:34 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: LMR other conditions
Replies: 17
Views: 9693

Re: LMR other conditions

I did not reduce Pawn moves in microMax purely for technical reasons, but it turned out to work quite well. Thus I tried the same think in Joker, but I got mixed results. Most of the LMR testing I do in Joker seems to give very mixed results, what seems better at one time control is often worse at ...
by bob
Mon Jul 23, 2007 4:31 pm
Forum: Computer Chess Club: General Topics
Topic: Checkers Solved - Chess around year 2060-2070!
Replies: 100
Views: 38283

Re: Checkers Solved - Chess around year 2060-2070!

Sorry, but you can't _prove_ until you do search all pathways. That's the very definition of proof. "we think" does not mean "it is". Funny Jonathan found a better way! What other way? He pruned out the BS, concentrated on wins and draws etc. He reduced the problem by a huge number of useless posit...
by bob
Mon Jul 23, 2007 4:28 pm
Forum: Computer Chess Club: General Topics
Topic: Checkers Solved - Chess around year 2060-2070!
Replies: 100
Views: 38283

Re: Checkers Solved - Chess around year 2060-2070!

Sorry, but you can't _prove_ until you do search all pathways. That's the very definition of proof. "we think" does not mean "it is". Funny Jonathan found a better way! What other way? He pruned out the BS, concentrated on wins and draws etc. He reduced the problem by a huge number of useless posit...
by bob
Mon Jul 23, 2007 4:24 pm
Forum: Computer Chess Club: General Topics
Topic: Checkers Solved - Chess around year 2060-2070!
Replies: 100
Views: 38283

Re: Checkers Solved - Chess around year 2060-2070!

I don't follow your math. 10^50 bits requires at least 10^50 atoms, although in your case this appears to average 12.5 atoms per bit if I understand your measure correctly. You are way beyond the number of atoms in planet earth at that number. The issue would become one of size. No way to run at su...
by bob
Mon Jul 23, 2007 5:34 am
Forum: Computer Chess Club: General Topics
Topic: Checkers Solved - Chess around year 2060-2070!
Replies: 100
Views: 38283

Re: Checkers Solved - Chess around year 2060-2070!

I just solved chess, on the back of my hand, cool!! But seriously, I read somewhere there were 10^125 possible games, and that a quantum computer could do it in a year, but its nonsense. I think theres 10^80 or a bit less atoms in universe, so you need 10^45 universes of atoms to equal number of po...
by bob
Sun Jul 22, 2007 7:36 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Technical question about the Core 2 Duo and Mac OS X
Replies: 45
Views: 20480

Re: Technical question about the Core 2 Duo and Mac OS X

I haven't tried it lately, but I think a more realistic assessment of the code produced by Intel's compiler might be, 5% faster than MSVC (and 5-10% larger code size). I've never found ICC to be faster than MSVC. It has always been "fairly close". Gcc has generally lagged behind MSVC by 30% or so d...
by bob
Sun Jul 22, 2007 7:35 pm
Forum: Computer Chess Club: General Topics
Topic: Checkers Solved - Chess around year 2060-2070!
Replies: 100
Views: 38283

Re: Checkers Solved - Chess around year 2060-2070!

Sorry, but you can't _prove_ until you do search all pathways. That's the very definition of proof. "we think" does not mean "it is". Funny Jonathan found a better way! What other way? He pruned out the BS, concentrated on wins and draws etc. He reduced the problem by a huge number of useless posit...
by bob
Sun Jul 22, 2007 6:49 pm
Forum: Computer Chess Club: General Topics
Topic: Checkers Solved - Chess around year 2060-2070!
Replies: 100
Views: 38283

Re: Checkers Solved - Chess around year 2060-2070!

You simply wave your hands and say "but it will be solved, if we can develop a parallel-universe memory system, or some type of quantum-computing that has not yet been conceived, or dream up some completely new and never even imagined way to attack the game. the rest of us look at what we have, wher...