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Subject: Pro Deo 1.1 Vulcan finds 28.Ra7!

Author: Eelco de Groot

Date: 19:19:44 09/15/05

Go up one level in this thread


On September 15, 2005 at 18:26:51, Vincent Lejeune wrote:

>On September 15, 2005 at 17:52:44, Eelco de Groot wrote:
>
>>
>>I think it will prove a very hard combination for most programs, even though
>>Vincent Lejeune had a good result here with a chessengine which he doesn't name?
>>
>
>It was simply Shredder 9 but I filled hashtable with playing around to find the
>best line with deep combinations, shredder is unable to find this quickly
>without help. So I prefered not to name it, because it's not chess engine itself
>who found the line.

Thanks Vincent!

Latest Pro Deo Vulcan has just cracked the position! That is if we don't run
into a false fail-high. A little over an hour, Athlon 3200+ with 200 Mb HT. So
far only with a "better than draw" evaluation because of the fail-high. Well at
least that shows the move 28.Ra7! can be found by the computers, and there will
be faster programs out there I am sure. Maybe Pro Deo default is faster.

 1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be3 Bg7 5.Qd2 c6 6.f3 b5 7.Nge2 Nbd7 8.Bh6
 Bxh6 9.Qxh6 Bb7 10.a3 e5 11.O-O-O Qe7 12.Kb1 a6 13.Nc1 O-O-O 14.Nb3
 exd4 15.Rxd4 c5 16.Rd1 Nb6 17.g3 Kb8 18.Na5 Ba8 19.Bh3 d5 20.Qf4 Ka7
 21.Rhe1 d4 22.Nd5 Nbxd5 23.exd5 Qd6 24.Rxd4 cxd4 25.Re7 Kb6 26.Qxd4
 Kxa5 27.b4 Ka4

 [D]b2r3r/4Rp1p/p2q1np1/1p1P4/kP1Q4/P4PPB/2P4P/1K6 w - -

 00:00:00   1.00  -8.26  28.Be6 Qxe7
 00:00:00   1.01  -3.36  28.Rxf7 Nxd5
 00:00:00   1.12  -3.36  28.Qe3 Bxd5
 00:00:00   2.00  -3.32  28.Qe3 Bxd5
 00:00:00   3.00  -4.48  28.Qe3 Qxd5 29.Qc1 Qxf3
 00:00:00   3.04  -3.57  28.Qc3 Qxd5 29.Re1 Qxf3
 00:00:00   3.14  -3.48  28.Re3 Bxd5 29.Kc1
 00:00:00   3.21  -3.31  28.Qd3 Bxd5 29.Qe3
 00:00:00   4.00  -5.77  28.Qd3 Qxd5 29.Qe3 Qd1 30.Kb2
 00:00:00   4.01  -3.92  28.Re3 Bxd5 29.Qb2 Be6
 00:00:00   4.03  -3.72  28.Qc3 Bxd5 29.Re5 Ra8
 00:00:00   5.00  -4.09  28.Qc3 Bxd5 29.Re3 Rhe8 30.Rd3
 00:00:00   6.00  -4.41  28.Qc3 Bxd5 29.Re3 Rhe8 30.Rd3 Re2
 00:00:00   6.04  -4.39  28.Qe3 Qxd5 29.Ra7 Rd6 30.Kb2
 00:00:00   7.00  -4.39  28.Qe3 Qxd5 29.Ra7 Rd6 30.Kb2
 00:00:00   7.01  -4.39  28.Qc3
 00:00:00   7.01  -3.48  28.Qc3 Qxd5 29.Qxf6 Qd1 30.Kb2 a5 31.Qxf7
 00:00:00   8.00  -2.64  28.Qc3 Qxd5 29.Ra7 Bb7 30.Rxb7 Qc4 31.Qe1
                         Rhe8
 00:00:00   8.01  -2.64  28.Qe3
 00:00:00   8.01  -2.26  28.Qe3 Qxd5 29.Ra7 Bb7 30.Rxb7 Rhe8 31.Qc3
                         Qd1 32.Ka2
 00:00:01   9.00  -2.45  28.Qe3 Qxd5 29.Ra7 Bb7 30.Rxb7 Rhe8 31.Qc3
                         Re2 32.Kb2
 00:00:01   9.01  -2.45  28.Qc3
 00:00:01   9.01  -2.45  28.Qc3
 00:00:02   9.01  0.00  28.Qc3 Qxd5 29.Qc7 Qd1 30.Kb2 Qd4 31.Kb1 Qd1
                        32.Kb2 Qd4 33.Kb1
 00:00:02  10.00  0.00  28.Qc3 Qxd5 29.Qc7 Qd1 30.Kb2 Qd4 31.Kb1 Qd1
                        32.Kb2 Qd4 33.Kb1
 00:00:04  11.00  0.00  28.Qc3 Qxd5 29.Qc7 Qd1 30.Kb2 Qd4 31.Kb1 Qd1
                        32.Kb2 Qd4 33.Kb1
 00:00:07  12.00  0.00  28.Qc3 Qxd5 29.Qc7 Qd1 30.Kb2 Qd4 31.Kb1 Qd1
                        32.Kb2 Qd4 33.Kb1
 00:00:19  13.00  0.00  28.Qc3 Qxd5 29.Qc7 Qd1 30.Kb2 Qd4 31.Kb1 Qd1
                        32.Kb2 Qd4 33.Kb1
 00:00:47  14.00  0.00  28.Qc3 Qxd5 29.Qc7 Qd1 30.Kb2 Qd4 31.Kb1 Qd1
                        32.Kb2 Qd4 33.Kb1
 00:02:36  15.00  0.00  28.Qc3 Qxd5 29.Qc7 Qd1 30.Kb2 Qd4 31.Kb1 Qd1
                        32.Kb2 Qd4 33.Kb1
 00:07:08  16.00  0.00  28.Qc3 Qxd5 29.Qc7 Qd1 30.Kb2 Qd4 31.Kb1 Qd1
                        32.Kb2 Qd4 33.Kb1
 00:17:29  17.00  0.00  28.Qc3 Qxd5 29.Qc7 Qd1 30.Kb2 Qd4 31.Kb1 Qd1
                        32.Kb2 Qd4 33.Kb1
 00:33:19  18.00  0.00  28.Qc3 Qxd5 29.Qc7 Qd1 30.Kb2 Qd4 31.Kb1 Qd1
                        32.Kb2 Qd4 33.Kb1
 01:12:20  18.05  0.00  28.Ra7

Newly hatched Pro Deo 1.1 Vulcan {9k16hv} testversion is same as {9k16h5} but
[Right to Move = 85], from 80. Seems rather high for this parameter so not sure
it can hold in general. This happens to be the 450th Vulcan version! -:} (And
still it is not perfect)

-------------------------------------------------------------------------------
[Personality = {9k16hv}]       * Pro Deo 1.1 (Settings 16-9-2005)
[Pawn Value = 90]
[Knight Value = 90]
[Bishop Value = 90]
[Rook Value = 90]
[Queen Value = 95]
[My Queen = 96]
[King Safety = 170]
[Mobility = 125]
[Pawn Structure = 100]
[Passed Pawns = 110]
[Pins = 100]
[Bishop Pair = 100]
[Chess Knowledge = 300]
[Attractiveness = 110]
[Attacking = 110]
[Strength of Play = 100]
[Draw Contempt Factor = 0.00]
[Selective Search = 100]
[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]             * Hash Table extension (-18%) DEFAULT
[M37_Val = 3.00]                * Default unknown
[Pruning = MISC_40]             *
[Pruning = MISC_52]             *
[QS Margin = 10.00]             * Default is 3.00
[Fail High Margin = 10.00]      * Default is 9.00
[Checks Depth = 4]              * Limit QS checks to 4 ply, default is 2
[Pruning = MISC_66]             *
[Pruning = MISC_69]             *
[Pruning = MISC_78]             *
*
[Center Control = 35]           *
[Bishop Mobility = 25]          *
[Right to Move = 85]            *
[Strong Squares = 130]          *
*
[Pruning = MISC_02]             *
[Pruning = MISC_03]             *
[Pruning = MISC_39]             *
[Pruning = MISC_08]             *
[Pruning = MISC_12]             *
[Pruning = MISC_76]             * Rook 7th rank (new style)
[Rook 7th Rank (low) = 60]	*
[Rook 7th Rank (high) = 60]	*
[Pruning ? MISC_48]             * No FHR pruning in QS
[Pruning = MISC_17]             * Skip first extension (+30-35%)
[Pruning = MISC_10]             * NULLMOVE Block first extension
[Pruning = MISC_22]		* Sort root moves on nodes
[Pruning ? MISC_30] 		* Extend singular checks
[Pruning ? MISC_36]             * Extend double attacks (W6) at the leafs
[Pruning ? MISC_28]             * (2,2,1,1)      >> in test <<
[Pruning = MISC_13]             * Extra bonus Bishop Pair
[Pruning = MISC_27]             * Eval double pawns (new style)
[Futility = 100]                * Futility Pruning.
[Blitz Time Control = 120]      * use more time at blitz levels
*
[Pawn Pressure midg = 150]      * weight pawn pressure middlegame
[Pawn Pressure end0 = 130]      * weight pawn pressure early endgame
[Pawn Pressure end1 = 120]      * weight pawn pressure endgame
[Pawn Pressure end2 = 110]      * weight pawn pressure simple endgame
*
[Knight Mobility = 88]          * 88
[Double Pawns = 110]            * 112
[Pawn Formation = 110]          * 108
[Weak Pawns = 110]              * 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)
*
*
[ANTI-GM = OFF]
[EVALUATION = NORMAL]
[Extensions (remaining)= 3]
[Extensions (checks)= normal]   * low|moderate|normal|strong|all
[Extensions (captures)= 0]
-------------------------------------------------------------------------------

 Eelco




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