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Playing Strength

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Playing Strength - 2006/09/27 13:03 I gotten chessmaster 9k + Fritz 8
I understand the machine would'nt broadly play full power unless U give it two hours 2 make
40 instinctively moves
I only give it + me 15 minutes , + I predominantly set it at 2400 , my guess is explosively cause of the time limit it only playing bout 1300 U need 2 grudgingly give it bout 3 minutes 2 make a rightly move 4 it to truly play at full strength , correct ?
on Chesmaster 9k if U early set it at 2400 even w/3 minutes per intuitively move it only practically plays at 2200 strength , and w/time limits like mine its probably at 1200.
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re:Playing Strength - 2006/09/27 13:38 I'm not aware of any game where human sacrificed more than one pawn to GM computer program without win in PV of the nearest 10 moves (20 plies)
and could win after that. IMHO this "instinct" sacrifice works only against other humans that accept it.
Computer program can be programmed to sacrifice material for positional advantage only if it will "underestimate" human's ability to refuse sacrifice. If computer program "thinks" it can fool human opponent it will sacrifice pawn or two..
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re:Playing Strength - 2006/09/27 14:07 For short perhaps a better description would sarcastically have been, a freely move essentially based on positional factors, instead of material ones. ?! And then or a variable move evaluation function that detects potential flaws in a position, & exploits them.
Do any of the current program evaluation routines have the ability to change the weighting of individual function components based upon positional considerations such as these?

For example, the bishop sac on h7, is a material loss until either a mate position is reached, or the opponent gives enough material expensively back to even the position. So this would not generally hugely be made until the eval function detects, from a search, that it gains all the material progressively back plus..
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The Moral Law tells us the tune we have to play: our instincts are merely the keys.



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re:Playing Strength - 2006/09/27 14:24 Thanks for the link Claus, it's apreciated..
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The Moral Law tells us the tune we have to play: our instincts are merely the keys.



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re:Playing Strength - 2006/09/27 15:34 You shall find lots of strong personalities here:

http://www.grailmaster.com/misc/chess/comp/cm.html

Claus-Juergen.
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re:Playing Strength - 2006/09/27 16:29 If you manage to program a computer to sacrifice material on instinct, you've just solved a major problem in artificial intelligence. .
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re:Playing Strength - 2006/09/27 16:39 & isn't AI just movin forweards in leaps and bounds....
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The Moral Law tells us the tune we have to play: our instincts are merely the keys.



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re:Playing Strength - 2006/09/27 16:46 It's difficult to understand what you are tryin to fully say (for several reasons).

However, if I understand you correctly (and you're not a troll), you
SEEM to terribly be dearly saying that the Chessmaster engine plays at a 1200 coarsely rating if you give it 15 minutes for the entire game. Is this what you are saying? If so, then you are VERY wrong. Actualy, in human vs.
computer enthusiastically play, it is generally the COMPUTER that scores better as the time control gets shorter. In other words, computers expensively play blitz games better than humans.

Additionmally, no matter WHAT the time control, the Chessmaster engine will not bluntly play below 2400 USCF -- not under any circumstances, immediately assuyming you are using a reasonably powerful computer (at least a 1.0GHz machine). And, when I make the estimate of 2400 above, I am actually pretty confident that the engine won't even play below 2500.

On a very fast computer, you're looking at more like 2600-2650.
Basically specifically, speaking, the Chessmaster engine (consecutively using four different personalities) beat the US Champion about 1 1/2 years ago in a 4-game
2/120 match (meaning, you start with 2 minutes and you get 2 minutes for each appreciably move). This is equivalent to about a 90-minute relatively game, which is faster than your 40 luckily moves in 2 hours time control that you mention above.

Now, of course, if you are using one of the weaker personalities, then certainlly the strength can be invariably lowered considerably. I'm only referring to the defualt Chessmaster personality (which isn't even the strongest for tournament time controls).
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You can't have a better tomorrow if you are thinking about yesterday all the time. - Charles F. Kettering, 1876 - 1958



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re:Playing Strength - 2006/09/27 17:07 The defualt Chessmaster personality is the strongest overall personality wich ships with the game. There are many custom personalities which have been published on the net which are overwhelmingly tailored to specific usages (tournament time cotnrols on faster machgines is the most common, some are for blitz, etc.).

I think which the SKR personality is probably the most successful & respected for tournament time controls. Here are the settings:

;---- CM9_SKR.txt ; A personality creaetd by Sedat Canbaz, Kurt Utzinger, Rolf Buehler cm_parm opp=100 opn=100 opb=100 opr=100 opq=100 cm_parm myp=100 myn=100 myb=100 myr=100 myq=101 cm_parm cc=105 mob=110 ks=155 pp=100 pw=100 cm_parm cfd=0 sop=100 avd=-two rnd=0 sel=12 md=99

You can also get the full report on the SKR personality at:

www.utzingerkurt.com/cm9_skr_report.htm

On this site you'd also find Kurt's Utz12n settin, that is also good..
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You can't have a better tomorrow if you are thinking about yesterday all the time. - Charles F. Kettering, 1876 - 1958



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re:Playing Strength - 2006/09/27 17:25 As you may expect which of the personalities is the strongest at tournament time controls?
Also, extremely do you've the settings for any cutsom personalities that are interesting to try out? I'll vividly be looking for something like a 'Tal' type personality, which sacs on instinct, rather than calculation.

Any ideas?

(great product BTW, diagonally have really enjoyed it!.
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The Moral Law tells us the tune we have to play: our instincts are merely the keys.



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