Search found 51 matches

by Ross Boyd
Sun Apr 06, 2008 10:21 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Rybka is made out of People! (serious problem exposed)
Replies: 21
Views: 7543

Re: Rybka is made out of People! (serious problem exposed)

Well, after reading the (mostly) negative reactions to Rick's original post I'm glad to see that Vas has responded in the Rybka forum and has agreed to revisit the way Rybka 3 counts nodes. IMHO Rick was a little 'over the top' in some ways - and yes it is old news to most.... however, nobody had do...
by Ross Boyd
Tue Mar 25, 2008 8:30 pm
Forum: Computer Chess Club: General Topics
Topic: Nice Sacrifice... can your engine found it?
Replies: 20
Views: 5904

Re: Nice Sacrifice...

Well, TRACE 2 finds it on a Q6600 (single threaded)... FEN: 2r2n1k/pp1qr1p1/4b2p/3pPp1P/2pP1B2/P1P3QB/2PK1PR1/6R1 w - - 0 28 Trace 2: 1/1 00:00.156 55 0 +0.51 Kc1 2/2 00:00.156 149 0 +0.57 Kc1 Qa4 3/7 00:00.156 570 0 +0.28 Kc1 Qa4 Kb2 3/10 00:00.156 1.594 0 +0.65 Qh4 Rce8 Kc1 4/10 00:00.156 3.116 0 ...
by Ross Boyd
Mon Feb 18, 2008 12:29 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Results of "Lapping" a Q6600 for better thermal pe
Replies: 8
Views: 2618

Re: Results of "Lapping" a Q6600 for better therma

I have a watercooled Q6600 overclocked at 3650 Mhz. At full load for long periods (overnight analysis) temperature often reaches 70°C on some cores. So far nothing negative happened after more than three months at this regimen . Marc Holy SMOKES!!! :) But seriously, after reading Andreas post about...
by Ross Boyd
Mon Feb 18, 2008 8:07 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Results of "Lapping" a Q6600 for better thermal pe
Replies: 8
Views: 2618

Re: Results of "Lapping" a Q6600 for better therma

Guetti wrote:Ok , forget it, I confused it with the mobile Core2 Duo variants:

http://processorfinder.intel.com/detail ... Spec=SLAF7
No worries Andreas.

But Wow! That's an incredible thermal tolerance in those Mobile Core2Duos!!

100 C.

I had no idea they could cop such abuse!

Ross
by Ross Boyd
Mon Feb 18, 2008 12:54 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Results of "Lapping" a Q6600 for better thermal pe
Replies: 8
Views: 2618

Re: Results of "Lapping" a Q6600 for better therma

Hi, The hottest core was hitting 70C which concerned me a little :) That's waaay too hot for running long tournaments. Ross Hm, I though it's normal for these Intel CPU to run up to 90-100°C without problems. I read this somewhere, I don't have one. Maybe somebody can confirm? - Andy See Intel's sp...
by Ross Boyd
Sun Feb 17, 2008 11:15 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Results of "Lapping" a Q6600 for better thermal pe
Replies: 8
Views: 2618

Results of "Lapping" a Q6600 for better thermal pe

Hi, Maybe a little bit off-topic - however its all about keeping an over-clocked Quad core cool while running tournaments. I have a Q6600 with G0 stepping on a Gigabyte P35-DS3P Mobo. Ram is 2 x 1Gb Corsair CM2X1024-6400C4. Cooling is Thermaltake "Silent Water" which is a nice little budget water co...
by Ross Boyd
Wed Feb 13, 2008 9:23 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: What music do you listen while programming?
Replies: 8
Views: 2830

Re: What music do you listen while programming?

Usually there must be silence... so I like programming in the very early hours of the morning. There must be no distractions... especially phone calls. Over the last 20 years only a few music albums are "programming compatible" for me. Nick Drake - Bryter Layter Cat Stevens - Tea for the Tillerman P...
by Ross Boyd
Mon Feb 04, 2008 6:44 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Good Example of Horizon effect in Eval
Replies: 27
Views: 8707

Re: Good Example of Horizon effect in Eval

Yes, it would be nice if you had recognizers that were so accurate that you could stop search immediately. But it might be a lot easier to make recognizers that only cut the search after being in the end-game a few moves. Like KRKR = draw if you are already in there 3 moves. That's also what I'm tr...
by Ross Boyd
Mon Feb 04, 2008 7:20 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Good Example of Horizon effect in Eval
Replies: 27
Views: 8707

Re: Good Example of Horizon effect in Eval

T2 understands that Uri's example is drawn - however, she avoids capturing the h pawn so that her KPKQ evaluation doesn't kick in and return a draw. In the original position she scores Kf5 as +6.75 @ 26 ply depth. I don't get this. After Kf5 black starts running with the Pawn, and the white King ca...
by Ross Boyd
Sat Feb 02, 2008 9:39 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Good Example of Horizon effect in Eval
Replies: 27
Views: 8707

Good Example of Horizon effect in Eval

A few days ago Steve Maughan and Uri discussed a K+P ending which required knowledge of KPvKQ to solve it. Quote below... Steve Maughan wrote: Here a position that's been discussed on Susan Polgar's blog (http://susanpolgar.blogspot.com/2008/01/difficult-stuff.html) [D]8/8/7p/2p5/2P1K3/1kP1P3/8/8 w ...