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Pro Deo engine parameters
- Please note that the below descriptions are quite technical, you must be half a chess programmer to
understand the technical (short) descriptions. To activate a parameter replace the "?" into a "="
and vice versa.
- Parameters listed with "!!" are almost certain an extra improvement, parameters listed with "!" are
interesting candidate improvements that need extensive further testing, parameters listed with "=" are
about equal in strength, parameters listed with "?" are doubtful.
[Personality = PRODEO.ENG] * List of active parameters within PRO DEO (version 1.0)
[Pawn Value = 100]
[Knight Value = 100]
[Bishop Value = 100]
[Rook Value = 100]
[Queen Value = 100]
[King Safety = 150]
[Mobility = 100]
[Pawn Structure = 100]
[Passed Pawns = 100]
[Pins = 100]
[Bishop Pair = 100]
[Chess Knowledge = 100]
[Attractiveness = 101]
[Attacking = 100]
[Strength of Play = 100]
[Draw Contempt Factor = 0.00]
[Selective Search = 100]
[Search Technique = NULLMOVE]
[Engine Learner = off] * off|on
[Book Learner = aggressive] * off|passive|moderate|strong|aggressive
[Position Learner = on] * off|on
[Extended Book Learner = off] * off|read|write|read&write
[Pruning = MISC_25] * reduction
[Pruning = MISC_37] * extension
[Pruning = MISC_40] * reduction
[Pruning = MISC_52] * FHR reduction (new style)
[Pruning = MISC_66] * hashing (new style)
[Pruning = MISC_69] * king tropism opponent passed pawn
[M69_Perc = 100] * weight factor MISC_69
[Center Control = 25] * 25
[Bishop Mobility = 25] * 25
[Right to Move = 75] * 75
[Strong Squares = 125] * 125 (knight outposts)
[Minimum Knight Mobility = 100] * 100
[Minimum Bishop Mobility = 100] * 100
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*** ***
*** Inactive parameters, to activate change the "?" into "=" and vice versa. ***
*** ***
*** Section Positional parameters ***
*** ***
*************************************************************************************
[My Queen ? 101] * 101 (1% = 0.09)
[Your Queen ? 100] * 100
[Own Queen ? 1.00] * Don't exchange queens when down (!)
[Pruning ? MISC_13] * Bishop Pair (extra bonus) (!)
[Pruning ? MISC_60] * Don't exchange king bishop (g2/g7)
[Pruning ? MISC_61] * Rook behind passed pawn
[M61_Perc ? 50] * weight of MISC_61
[Pruning ? MISC_58] * Recalculate passed pawns
[M58_Table ? Normal] * normal|midg|endg|strong
[Pruning ? MISC_14] * Queen ending (new style) (!)
[Bad Bishop ? 150] * weight of bad bishops
[Pawn Pressure midg ? 200] * weight pawn pressure middlegame
[Pawn Pressure end0 ? 200] * weight pawn pressure early endgame
[Pawn Pressure end1 ? 100] * weight pawn pressure endgame
[Pawn Pressure end2 ? 100] * weight pawn pressure simple endgame
[King_Safety ? 150] * King Safety new style (!)
[Knight Mobility ? 88] * 88
[Double Pawns ? 150] * 150
[Pawn Formation ? 100] * 100
[Weak Pawns ? 100] * 100
[Passed Pawn King Tropism ? 100] * king tropism to own passed pawns
[Traditional Isolated Pawns ? 100] * weight isolated pawns
[Progressive Isolated Pawns ? 100] * weight isolated pawns (new style)
*************************************************************************************
*** ***
*** Inactive parameters, to activate change the "?" into "=" and vice versa. ***
*** ***
*** Section SEARCH parameters ***
*** ***
*************************************************************************************
[Keep Main Line ? 10] * minimum margin new mainline (?)
[Pruning ? MISC_10] * block first extension during nullmove (+10%) (=?)
[Pruning ? MISC_09] * reduce if bad hash table score (max=1) (+12%) (=?)
[Pruning ? MISC_78] * adaptive nullmove R=2/3 (+8%) (!!)
[Pruning ? MISC_03] * move ordering speedup (+4%) (!!)
[Pruning ? MISC_29] * limit check extensions (+4%) (=)
[Pruning ? MISC_21] * Lazy Eval (tuning) (-4%) (=)
[Pruning ? MISC_50] * Limit Reductions table driven (=)
[Checks Depth ? 1] * limit QS checks to 1 ply (+9%) (!)
[Clear Hash Table ? Always] * Always|Never|PB only
[Recaptures ? 3.00] * 1.50|2.00|2.80|3.00
[Adjusted Selectivity MIDG ? 6] * Maximum selective depth (midgame)
[Adjusted Selectivity END0 ? 5] * Maximum selective depth (early endgame)
[Adjusted Selectivity END1 ? 4] * Maximum selective depth (endgame)
[Adjusted Selectivity END2 ? 3] * Maximum selective depth (simple endgame)
[Time Control ? 125] * 125
[Time Control Status ? PB ONLY] * ALWAYS|PB ONLY
[ANTI-GM = OFF] * off|moderate|strong|smart
[EVALUATION = SMART] * aggressive evaluation hanging pieces
[Extensions (remaining)= 3] * maximum allowed recapture extensions (0-15)
[Extensions (checks)= 0]
[Extensions (captures)= 0]
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