Author: Tony Nichols
Date: 01:14:21 01/07/06
Go up one level in this thread
On January 06, 2006 at 09:51:09, Eelco de Groot wrote:
>On January 06, 2006 at 08:53:19, Tony Nichols wrote:
>
>>
>> I am interested in finding the strongest tactical engine for analysis. I don't
>>care how strong it is in actual play. Any suggestions?
>>Thanks
>>Tony
>
>Hello Tony,
>
>I think it depends a bit on what you want to do with it and the sort of
>positions you want to analyze; mate combinations, simple or hard sacrifices or
>combinations that look good but you suspect could be refuted, or combinations
>that require very accurate play by both sides for e.g. correspondence play. I
>suppose this last category is the hardest. In all categories I think it is
>probable that results will depend very much on positional knowledge! Something
>similar seems to apply for Rybka's best blitz settings for instance! So the
>issue has many sides. I don't have a Rybka winfinder yet so cannot compare!
>
>For a short answer, here some Pro Deo 1.1 Tactical settings that I made quite a
>while months back. I don't think they are optimal for the task but still can
>help in analysis, Nolot positions for instance.
>
>-------------------------------------------------------------------------------
>[Personality = Vulcan Q1e-Tactical Engine] * Pro Deo 1.1 (February 2005)
>[Pawn Value = 90]
>[Knight Value = 90]
>[Bishop Value = 90]
>[Rook Value = 90]
>[Queen Value = 90]
>[My Queen = 91]
>[King Safety = 405]
>[Mobility = 125]
>[Pawn Structure = 110]
>[Passed Pawns = 125]
>[Pins = 115]
>[Bishop Pair = 110]
>[Chess Knowledge = 200]
>[Attractiveness = 250]
>[Attacking = 450]
>[Strength of Play = 100]
>[Draw Contempt Factor = 0.00]
>[Selective Search = 80]
>[Search Technique = NULLMOVE]
>
>[Engine Master = off] off
>[Engine Learner = off] off|on
>[Book Learner = off] off|passive|moderate|strong|aggressive
>[Position Learner = off] off|on
>[Extended Book Learner = off] off|read|write|read&write
>*
>[Pruning = MISC_25] *
>[Pruning = MISC_37] *
>[Pruning = MISC_40] *
>[Pruning = MISC_52] *
>[Pruning ? MISC_53] *
>[Pruning = MISC_66] *
>[Pruning = MISC_69] *
>[Pruning = MISC_78] *
>*
>[Center Control = 30] *
>[Bishop Mobility = 25] *
>[Right to Move = 75] *
>[Strong Squares = 128] *
>*
>[Pruning = MISC_02] *
>[Pruning = MISC_03] *
>[Pruning = MISC_39] *
>[Pruning = MISC_08] *
>[Pruning = MISC_12] *
>[Pruning = MISC_16] *
>[Pruning = MISC_22] * Was: Slightly safer Selectivity
>[Pruning = MISC_30] * extend singular checks
>[Pruning = MISC_36] * Extend double attacks (W6) at the leafs
>[Pruning = MISC_38] * New capture extension
>[Pruning ? MISC_28] * (2,2,1,1) >> in test <<
>[Blitz Time Control = 120] * use more time at blitz levels
>*
>[Pawn Pressure midg = 165] * weight pawn pressure middlegame
>[Pawn Pressure end0 = 140] * weight pawn pressure early endgame
>[Pawn Pressure end1 = 125] * weight pawn pressure endgame
>[Pawn Pressure end2 = 110] * weight pawn pressure simple endgame
>*
>[Knight Mobility = 88] * 88
>[Double Pawns = 112] * 112
>[Pawn Formation = 115] * 108
>[Weak Pawns = 112] * 112
>[Minimum Knight Mobility = 100] * 100
>[Minimum Bishop Mobility = 100] * 100
>[Passed Pawn King Tropism = 100] * king tropism to own passed pawns
>[Progressive Isolated Pawns = 100] * weight isolated pawns (new style)
>*
>[Adjusted Selectivity MIDG = 3] * Maximum selective depth (midgame)
>[Adjusted Selectivity END0 = 3] * Maximum selective depth (early endgame)
>[Adjusted Selectivity END1 = 3] * Maximum selective depth (endgame)
>[Adjusted Selectivity END2 = 3] * Maximum selective depth (simple endgame)
>*
>[Recaptures = 3.00] * 1.50|2.00|2.80|3.00
>[ANTI-GM = OFF]
>[EVALUATION = SMART]
>[Extensions (remaining)= 3]
>[Extensions (checks)= normal] * low|moderate|normal|strong|all
>[Extensions (captures)= 0]
>-------------------------------------------------------------------------------
>
>I made many more of these but did not do extensive tests with the tactical
>testsets. I could easily make some new version, based on the last Vulcan
>{9k17pr} for "normal" analysis, if there is any interest in it. They should not
>do badly in tests but actual gameplay seemed louzy. Maybe for one minute games
>it is good..
>
> Eelco
Hello Eelco,
Thanks for the information. I want to use the engine solely to check the
tactics in any position I may be studying( opening and middlegame). I don't care
at all about the playing strentgh of the engine. Just the fastest tactical
engine will do.
Regards
Tony
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