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Subject: Re: Pro Deo/Rebel parameter

Author: Eelco de Groot

Date: 04:43:37 10/21/05

Go up one level in this thread


My lay-out is still a bit messy I see.. But I hope it is readable enough. This
was Ed's original posting of the Pro Deo 1.1 parameters, in case I've forgotten
something when changing the lay-out:

Posted by Ed Schröder (Profile) on May 19, 2005 at 16:05:18:

In Reply to: Re: Windows question posted by Eelco de Groot on May 19, 2005 at
14:49:03:


On May 19, 2005 at 14:49:03, Eelco de Groot wrote:

>On May 19, 2005 at 11:23:22, Fernando Villegas wrote:
>
>>The mistake, Ed, is using W98. If you use it for  its DOS capabilities, lot
>>better is to have an special diskette to load the PC with a bath of config.sys
>>and autoexec. lines at your taste.
>>For windows, XP pro is the very best, far better than any other version.
>>Not perfect, thought.
>>Fdo
>
>Dear Fernando, Ed
>
>I have Windows XP pro with service pack two installed on the new Athlon 3200+
>and it works well with Pro Deo 1.1. With Windows 98 SE on my Celeron 500 (64 Mb
>systemmemory), I never could run Rebel or ProDeo (DOS/Windows) in the background
>and at the same time connect to the Internet. I always thought it might be just
>that I needed a reinstall of Windows 98, but I'm not sure. Other chessprograms
>like Chess Tiger etc. did not hang up the system.
>
>I did not think it was possible to run DOS programs in Windows XP, but it seems
>there are exceptions. A google search turns up pages like
>http://www.longhighway.com/sandbox/xp.html
>
>If I simply had to run DOS programs, I think I would make a new partition and
>install Windows 98 on that. It has to be possible to install it so that you can
>have a choice from which system to boot, but I don't know the details.
>
> Groeten,
> Eelco
>
>Ed, I hardly dare to ask, but is there maybe a way to tune connected passed
>pawns in Pro Deo? I would love to do some experimenting with that... But I could
>not find anything on your homepage.
>
>Anyway Ed, thanks a lot for Pro Deo 1.1, it really is very good!
>
> Eelco


Hi Eelco,

There is no option to tune connected passers.

BTW, from a CCC posting I learned you are still using old settings of a former
version. Here is the documentation that is valid for Pro Deo 1.1

My best,

Ed

====================

        REBEL [MISC] options    (01-80)					REMARKS
        ===============================					=======

[MISC-01]	Don't touch	Is in use by [Eternal Checks]
[MISC-02]	Speedup		Small move ordering speedup (1.5%)      DEFAULT SETTING.
[MISC-03]       Speedup		Small move ordering speedup (4-5%)	DEFAULT SETTING.
[MISC-04]       ALPHA/BETA	Set Window to 0.25 (instead of 0.50)	doesn't matter
much.
[MISC-05]       ALPHA/BETA	Fail-High or Fail-Low in 5 phases	doen't work
currently.
[MISC-06]       ALPHA/BETA	Zero Width (speedup is 3%)		looks safe.
[MISC-07]       NULLMOVE	Detect Zugzwang (new style) 		untested and doubtful.
[MISC-08]       Reduction	History Reductions			DEFAULT SETTING.

[MISC-09]       Reduction	Reduce if bad HT score (max=1) (+12%)	unclear.
probably no improvement.
[MISC-10]       NULLMOVE	Block first extension (+10%)		untested. no high
expectations.
[MISC-11]       Reduction	TR70 only on RD-3			probably small improvement.
untested.
[MISC-12]       Lazy Eval	Double Lazy Eval (safety)		DEFAULT SETTING.
[MISC-13]       Bishop Pair	Extra bonus (0.25) if opponent no N/B	untested.
[MISC-14]       Queen Ending	New passed pawn handling		untested. contains a bug.
[MISC-15]       Time Control	TR30 (quickly check next iteration)	unclear.
[MISC-16]       Sel. Search	Increase Brute Force if extension (1)	(2,0,0,0) see
also MISC-28

[MISC-17]       Search		Skip first extension (+30-35%)		unclear.
[MISC-18]       Bishop Pair	via no. of pawns instead of material	unclear.
[MISC-19]       Time Control	Play Fast against humans		mandatary against GM's.
Do NOT mix with MISC_68 (!)
[MISC-20]       Don't touch	In use for compatibilty reasons with older versions.
[MISC-21]       Lazy Eval	Tuning attempt (-4%)			about equal.
[MISC-22]       Move Ordering	Sort root moves on nodes		no improvement.
[MISC-23]       Reduction	PLMAX-b reduction only once		could make a difference.
untested.
[MISC-24]       Search		Skip first recapture extension		unclear.

[MISC-25]       Reduction	PLW3 reduction (new style)		DEFAULT SETTING.
[MISC-26]       Extension	Skip endgame extension			untested. no expectations.
[MISC-27]       Eval		Eval double pawns (new style)		untested. interesting.
[MISC-28]       Sel. Search	Increase Brute Force if extension (2)	(2,2,1,1) see
also MISC-16
[MISC-29]       Search		Limit check extensions (2x SVDSG)	looks ok (+4%)
[MISC-30]       Extension	Allow singular check extensions (max=3)	great for
tactics, unclear in practical games
[MISC-31]       ALPHA/BETA	Fail_high_error = best move		unclear and risky.
[MISC-32]	Sel. Search	Increase Brute Force if extension (3)	untested. Speed loss
of 12% in endgame.

[MISC-33]       Eval		Cancel exchange when up/down algorithm	unclear.
[MISC-34]       ............	...................................
[MISC-35]       ............	...................................
[MISC-36]       Extension	Extend double attacks (W6) at the leafs	looks
promising (-2%)
[MISC-37]       Extension	Hash Table extension (-18%)		DEFAULT SETTING.
[MISC-38]       .............	....................................
[MISC-39]       NULLMOVE	Move ordering (+4%)			DEFAULT SETTING.
[MISC-40]       Sel. Search	PLMAX-Z3 reduction (+15%)		DEFAULT SETTING.

[MISC-41]       .............	....................................
[MISC-42]       REDUCE		no reduction if prev plies extended	interesting. good
first results. needs more testing.
[MISC-43]       Search		No TWS extensions in the last x plies	untested. better
don't touch.
[MISC-44]       .............	....................................
[MISC-45]       .............	....................................
[MISC-46]       .............	....................................
[MISC-47]       Extension	King Safety extension (-5%)		equal. matter of taste.
[MISC-48]       Q-Search	No FHR pruning in QS (-6%)		unclear.

[MISC-49]       .............	....................................
[MISC-50]       Search		Maximize reductions iteration driven	unclear.
[MISC-51]       Time Control	Minimum search depth easy-moves		untested. could
matter a lot in blitz games.
[MISC-52]       Reduction	FH reduction (new style) (max=1)	DEFAULT SETTING.
[MISC-53]       Reduction	BBB reduction (new style) (max=1)	untested. could
matter.
[MISC-54]       .............	....................................
[MISC-55]       .............	....................................
[MISC-56]       NULLMOVE	Limit Nulmove Mate Extension (max=1)	untested. probably
no big deal.

[MISC-57]       Extension	Extend withdrawing moves at the leafs	looks promising
(-2%)
[MISC-58]       Eval		Recalculate passed pawns		the [M58_Table = midg]
sub-setting looks promising.
[MISC-59]       Eval		Recalculate Bad Bishop (endgame)	untested.
[MISC-60]       Eval		Recalculate Bishop financhetto		untested.
[MISC-61]       Eval		Rook behind passed pawn tuning		Sub-setting [M61_Perc =
100]
[MISC-62]       .............	....................................
[MISC-63]       Lazy Eval	Include pawns on 7th (2th) rank		unclear.
[MISC-64]       Search		No 7th (2th) rank pawn exte in MIDG	untested.

[MISC-65]       .............	....................................
[MISC-66]       Hash Table	Bugfix					DEFAULT SETTING.
[MISC-67]       .............	....................................
[MISC-68]       Time Control	Play fast against computers		promising. Do NOT mix
with MISC_19 (!)
[MISC-69]       Eval		King tropism opponent passed pawn	DEFAULT SETTING.
[MISC-70]       .............	....................................
[MISC-71]       .............	....................................
[MISC-72]       Search		Research FH error directly		unclear.

[MISC-73]       .............	....................................
[MISC-74]       Reduction	HT singular reduction (2.00) (+11%)	unclear.
[MISC-75]       Eval		King Saftey (no pawnram queen endings)  untested.
[MISC-76]       Endgame		Rook 7th rank (new style)		untested. note the 2
sub-settings.
[MISC-77]       Search		Avoid double reductions			untested. probably no big
deal.
[MISC-78]       NULLMOVE	Adaptive nullmove.			DEFAULT SETTING.
[MISC-79]       EVAL		Adjust King Safety (insuf. material)	attempt to fix the
KBPK bad bishop bug.
[MISC-80]       Draw		Bugfix 50-move rule			don't touch. probably even worse.



	MISC sub-settings (parameters)
	==============================

[MISC-09]       Reduction	Reduce if bad HT score (max=1) (+12%) (default is
2.00)
[M09_val = 2.00]		Margin is 2.00

[MISC-27]       Eval		Eval double pawns (new style)		untested. interesting.
[M27_midg = 100]		Double pawn factor middlegame
[M27_end1 = 100]		Double pawn factor endgame (normal)
[M27_end2 = 100]		Double pawn factor endgame (simple)

[MISC-43]       Search		No TWS extensions in the last x plies	untested. better
don't touch.
[M43_TWS = 3]			RD=3

[MISC-52]       Reduction	FH reduction (new style) (max=1)	DEFAULT SETTING.
[Fail High Margin = 9.00]	Default is 9.00

[MISC-58]       Eval		Recalculate passed pawns		the [M58_Table = midg]
sub-setting looks promising.
[M58_Table = midg]		normal|strong|midg|endg (default is normal)

[MISC-61]       Eval		Rook behind passed pawn tuning		untested.
[M61_Perc = 100]		Default is 100.

[MISC-69]       Eval		King tropism opponent passed pawn	DEFAULT SETTING.
[M69_Perc = 100]		Default is 100. Tuning is needed

[MISC-74]       Reduction	HT singular reduction (+11%) (default is 2.00)
[M09_val = 2.00]		Margin is 2.00

[MISC-76]       Endgame		Rook 7th rank (new style)
[Rook 7th Rank (low) = 50]      50   (default) (when opponent king is on the 8th
rank)
[Rook 7th Rank (high) = 50]     50   (default) (when opponent king can't escape
from 8th rank)


	Other parameters
	================

[Your Quuen = 100]		Increase (decrease) value opponent queen
[My Queen = 101]		Own Queen +1% (0.09)			DEFAULT SETTING.
[Own Queen = 1.00]              Increase own queen when down		unclear.
[Queen Endgame Bonus = 0.50]    Increase value of Queen in endgame	unclear.

[Endgame Mobility = 100]	Self explanatory			untested.
[Knight Mobility = 100]		Self explanatory			A lower value is probably better.

[Minimum Knight Mobility = 100] Self explanatory			DEFAULT SETTING. Tuning is
needed nevertheless.
[Minimum Bishop Mobility = 100] Self explanatory			DEFAULT SETTING. Tuning is
needed nevertheless.

[Keep Main Line = 10]           Minimum margin for each new mainline	untested.
risky! (speedup 5%)

[Time Control = 125]            125                                     clear
improvement using blitz levels, unclear
[Time Control Status = ALWAYS]  ALWAYS|PB ONLY                          on all
other levels.

[Eternal Checks = Normal]       off|normal|risky|safe			default=off. Algorithm
to detect eternal checks,
									its quality is doubtful.

[Recaptures = Normal]
1.00|1.50|2.00|2.50|3.00|4.00|5.00|normal|aggressive
				I am afraid none of these will give a clear improvement, but I only tried
[2.00]

[Chaos = 100]			Substitute for [Attacking = 100]	[Attacking] [Chaos] and
[Confusion] are algorithm's
[Confusion = 100]		Substitute for [Attacking = 100]	to use against humans. It's
practical use against
									computers is doubtful, their status is untested.

[Lazyeval MIDG = moderate]      * normal|moderate|strong		probably a small
improvement.
[Lazyeval ENDG = moderate]      * normal|moderate|strong		probably a small
improvement.

[Checks Depth = 1]              limit QS checks to 1 ply (+9%)		probably an
improvement.
[Clear Hash Table = Always]     Always|Never|PB only			probably a small
improvement.

[Pruning = Prune Bad Moves_0]	No reductions allowed			slows down search with a
factor of 2.
[Pruning = Prune Bad Moves_1]	Allow only 1 reduction			slows down search
considerable (30-40%)
[Pruning = Prune Bad Moves_2]	Allow only 2 reductions			slows down search
(10-15%), effects are little.
[Pruning = Prune Bad Moves_3]	Allow only 3 reductions			slows down search a bit,
effects are negligible.

[Nullmove Margin = 0]		Search speedup depending on the height of the parameter.
Reasonable values in the range
				of 0-16. Above that chances are high for big search gaps. Default setting is
0 (off)

[Transpositions = ON]		on|off (for testing purposes only)

[Extensions (remaining)= 3]     Maximum recapture extensions (default is 3)
(maximum is 15)

[Extensions (checks)= NORMAL]   low|moderate|normal|strong|high|all	Low
(+25%)
									Moderate    (+8%)
									Normal      Default setting
									Strong      (-16%)
									High	    (-21%)
									All	    (-26%)





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