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Subject: Doesn't appear to work for me (full data)

Author: Gian-Carlo Pascutto

Date: 13:55:41 11/20/02

Go up one level in this thread


Nullmove in Deep Sjeng uses an algorithm of my own, but I can
switch it back to other systems easily. I did so for running
a few tests.

I made a version which uses Heinz Adaptive Nullmove Pruning
and a version which uses your verification nullmove.

I did a run over ECM-GCP, at 10 seconds per position.

giancarlo@garf:~/sjeng > ./compare3.pl 240 241
Comparing 240 vs 241
Pos:   1 | Bg4    | -      | -      |   9.6 |   9.0 |   10 |    9 |  6077427 |
5854404
Pos:   2 | Nxg4   | Bb5    | Bb5    |   8.6 |   8.6 |  607 |  974 |  3261400 |
6097488
Pos:   3 | Nd5    | -      | -      |  10.0 |   9.6 |  110 |  253 |  3937003 |
4249315
Pos:   4 | Bxd5   | -      | -      |  10.6 |   9.6 |  113 |  103 |  6635622 |
4312132
Pos:   5 | Rxc8   | Qxa3   | Rxd6   |  10.0 |  10.0 |  522 |  752 |  3438275 |
5570487
Pos:   6 | Rxa1   | -      | -      |  10.0 |   9.6 |  298 |  261 |  4600660 |
4362616
Pos:   7 | Nxc6   | Bf3    | Bf3    |   8.6 |   9.0 |    0 |    0 |  3282289 |
4955546
Pos:   8 | d3     | -      | -      |  10.6 |  10.6 |  210 |  301 |  4525770 |
6204639
Pos:   9 | Qxf7+  | -      | -      |   9.6 |  10.6 |  934 |  100 |  6514297 |
7121127
Pos:  10 | Rxb2+  | -      | -      |   9.0 |   8.3 |  179 |  167 |  5321098 |
3294826
Pos:  11 | Nxf7   | -      | -      |   9.6 |   9.0 |   66 |   90 |  5011237 |
6148378
Pos:  12 | Rxd4   | Nh5    | Nh5    |   9.6 |   9.0 |    0 |    0 |  4255664 |
4621228
Pos:  13 | g6     | -      | -      |   9.6 |   9.6 |   13 |   13 |  3619239 |
5454250
Pos:  14 | Kg2    | Qh6    | Qh6    |   9.0 |   9.0 |  709 |  770 |  3639929 |
4113976
Pos:  15 | Nh7    | -      | -      |  10.6 |  10.6 |   18 |   15 |  4676206 |
5788576
Pos:  16 | Nxc5   | -      | -      |   8.6 |   8.3 |  758 |  895 |  5778234 |
5874884
Pos:  17 | Rd4    | -      | -      |  10.0 |   9.6 |  117 |  146 |  5407879 |
4976856
Pos:  18 | exf6   | -      | -      |   9.0 |   9.0 |  230 |  278 |  4226676 |
5089733
Pos:  19 | Nh6+   | -      | -      |   9.6 |   9.0 |  222 |  246 |  5022900 |
4234842
Pos:  20 | Re7    | -      | -      |  10.6 |  10.0 |   27 |   33 |  5345105 |
4663622
Pos:  21 | Qxc3+  | -      | -      |  10.0 |   9.6 |   52 |   47 |  4410530 |
5960068
Pos:  22 | Qxh3+  | -      | -      |   8.6 |   8.0 |    8 |    6 |  2921917 |
4206605
Pos:  23 | Qxf5+  | -      | -      |  11.0 |  10.0 |   19 |   20 |  6491996 |
7303350
Pos:  24 | Nxh7   | O-O    | O-O    |   9.0 |   9.0 |  876 |  743 |  5421985 |
4950831
Pos:  25 | Rxf6   | -      | -      |  10.6 |   9.3 |  307 |  685 |  5385906 |
3588158
Pos:  26 | Nf6+   | -      | -      |   9.0 |   8.3 |   17 |   17 |  4900798 |
4574982
Pos:  27 | Nxh5   | -      | -      |  10.6 |  10.0 |   67 |   74 |  4237081 |
4807855
Pos:  28 | Rxe7   | f4     | Re2    |   9.6 |  10.0 |    0 |    0 |  4226886 |
3927724
Pos:  29 | Rxd5   | -      | -      |   7.6 |   7.6 |    2 |    2 |  2066506 |
2593429
Pos:  30 | d3+    | Rf8    | Rf8    |   8.6 |   8.6 |  313 |  344 |  1758501 |
1930475
Pos:  31 | Bd5+   | -      | -      |  10.0 |   9.0 |   58 |   64 |  5724868 |
4706264
Pos:  32 | Ba3    | Ne2    | Ne2    |  10.0 |   9.6 |    0 |    0 |  3227035 |
4476823
Pos:  33 | g6     | -      | -      |   9.0 |   8.3 |  427 |  596 |  4353643 |
5058109
Pos:  34 | Ra8    | Rb8    | Rb8    |   9.6 |   9.6 |  753 |  772 |  4702685 |
5176154
Pos:  35 | g4+    | -      | -      |  10.6 |  10.6 |   83 |   91 |  2943640 |
5467988
Pos:  36 | Ba4    | -      | -      |  10.0 |  10.0 |  711 |  451 |  5497145 |
5758253
Pos:  37 | Nxf7   | -      | -      |   8.6 |   8.6 |    5 |    5 |  3366684 |
4527366
Pos:  38 | Nf2+   | -      | -      |  11.0 |  10.0 |   52 |   46 | 10037221 |
11187940
Pos:  39 | Ne4    | -      | -      |   8.6 |   9.0 |  411 |  426 |  4560487 |
4305261
Pos:  40 | Nb6    | -      | Qf3    |  10.0 |  10.0 |  151 | 1000 |  2540391 |
5607155
Pos:  41 | Bxc2   | -      | -      |   9.6 |   9.6 |  245 |  258 |  2621935 |
4644411
Pos:  42 | Bxc5   | -      | -      |  10.6 |  10.6 |   35 |   34 |  4275866 |
5873212
Pos:  43 | Rxd5   | -      | -      |   9.6 |   9.6 |   15 |   16 |  3982771 |
4616454
Pos:  44 | Rb3    | -      | -      |   9.6 |   9.6 |  117 |  116 |  3276091 |
5396892
Pos:  45 | Bf4    | -      | -      |   9.0 |   8.3 |  379 |  485 |  5342912 |
4745199
Pos:  46 | Re7    | -      | -      |   9.0 |   8.3 |  122 |  132 |  4962305 |
1752502
Pos:  47 | Nxe3   | -      | -      |   8.6 |   8.6 |   33 |   34 |  1103855 |
2143169
Pos:  48 | Ra2+   | -      | -      |   8.0 |   8.3 |  193 |  177 |  2844140 |
4453366
Pos:  49 | Bg7    | -      | -      |   9.0 |   9.0 |   13 |   13 |  3384906 |
4291700
Pos:  50 | Qc1    | -      | -      |   9.6 |   9.6 |  131 |  140 |  2149000 |
2442977
Pos:  51 | Rxc5   | -      | -      |   9.6 |   9.6 |  262 |  200 |  4082180 |
5498740
Pos:  52 | Rxd6   | -      | -      |  10.6 |   9.6 |   27 |   29 |  4354735 |
3509118
Pos:  53 | Rh4+   | Rg4    | Qh5+   |   8.6 |   7.6 |    0 |    0 |  5629324 |
5993724
Pos:  54 | Bh7+   | Qb3    | Qb1    |   9.0 |   9.6 |    0 |    0 |  4824788 |
5501309
Pos:  55 | Bxf7+  | -      | -      |   8.0 |   7.3 |   66 |   78 |  5229564 |
3288573
Pos:  56 | Bb7    | -      | -      |  11.0 |  10.0 |    6 |    8 |  5548401 |
4394668
Pos:  57 | Rxd7   | Rxd7+  | Rxd7+  |   9.0 |   9.0 |  592 |  740 |  3170022 |
4084424
Pos:  58 | Bxh6   | -      | -      |  10.6 |   9.6 |   24 |  146 |  4597345 |
4302558
Pos:  59 | Rxh8+  | -      | -      |   9.0 |   8.3 |   76 |  246 |  3395839 |
1316383
Pos:  60 | Bh7+   | -      | -      |   9.6 |   9.0 |   27 |   26 |  4733505 |
4606647
Pos:  61 | Nxf7   | -      | -      |   9.6 |   9.6 |   98 |  142 |  3070161 |
3799728
Pos:  62 | Bg3+   | -      | -      |   9.6 |   9.0 |  351 |  149 |  6053895 |
5138173
Pos:  63 | Rb1+   | -      | -      |  12.0 |  11.0 |   24 |   26 | 11787829 |
9532525
Pos:  64 | Rxc3   | -      | -      |   8.6 |   8.0 |    5 |    4 |  4024352 |
3401443
Pos:  65 | Nxg7   | -      | -      |   9.0 |   9.3 |  217 |  814 |  5388306 |
5498831
Pos:  66 | Bxg6+  | -      | -      |   9.0 |   9.0 |   62 |   35 |  4363706 |
4596788
Pos:  67 | Qh6+   | Qd2    | Qd2    |   8.6 |   8.0 |    0 |    0 |  4744042 |
5250455
Pos:  68 | Nxg7   | Nxe7+  | Nxe7+  |   9.6 |   9.0 |    0 |    0 |  5046980 |
4140334
Pos:  69 | Rxb2   | Be5    | Rb4    |   9.0 |   9.0 |  675 |  862 |  3278810 |
4422394
Pos:  70 | Qxg6+  | -      | -      |  10.6 |   9.6 |   13 |   13 | 10541368 |
9760632
Pos:  71 | e4     | -      | -      |   7.6 |   7.3 |  261 |  358 |  4537465 |
2034713
Pos:  72 | Re7    | -      | -      |   9.6 |   9.0 |   32 |   45 |  5576040 |
5132876
Pos:  73 | R1b4   | -      | -      |   9.6 |   9.0 |  197 |  190 |  5874608 |
6237045
Pos:  74 | Re4    | -      | -      |  10.6 |  10.0 |   47 |   34 |  5267152 |
3315835
Pos:  75 | Nd5    | -      | -      |   8.6 |   8.6 |   38 |   54 |  4058409 |
5236853
Pos:  76 | Rxe7   | -      | -      |  10.0 |   8.3 |    3 |    4 |  5664769 |
6006027
Pos:  77 | Rxd7   | Bd2    | Bd2    |   9.0 |   9.0 |  757 |  537 |  3411782 |
2685151
Pos:  78 | Qh6    | -      | -      |  11.6 |  11.6 |   27 |   79 |  4639870 |
7283884
Pos:  79 | Rxe6   | -      | -      |  11.0 |  10.6 |  155 |  137 |  5358500 |
4752928
Pos:  80 | Rxc8+  | Rc6    | Rc6    |   8.6 |   8.0 |    0 |    0 |  5528855 |
3992712
Pos:  81 | Rxe4   | -      | -      |   9.6 |   9.6 |    8 |   11 |  3624257 |
4950719
Pos:  82 | Rxd4   | Bxe5   | Bxe5   |  11.0 |  10.6 |    0 |    0 |  5716052 |
4861479
Pos:  83 | Rxe5   | cxd5   | cxd5   |   8.6 |   8.6 |  496 |  585 |  2298605 |
3147240
Pos:  84 | Rxc5   | -      | -      |  11.0 |  10.6 |  101 |  381 |  6354130 |
7246151
Pos:  85 | Rxe7   | Qh6    | Qh6    |   8.6 |   8.6 |  625 |  646 |  3132419 |
3685817
Pos:  86 | Nxe6   | Qf3    | Qf3    |   9.6 |   9.6 |  786 |  680 |  4367004 |
4204082
Pos:  87 | Rxe3   | -      | -      |  10.6 |   9.6 |    4 |    4 |  5138871 |
3193802
Pos:  88 | Rxd7   | -      | -      |  10.0 |   9.3 |  393 |  527 |  3915536 |
3892878
Pos:  89 | Rxc1   | Rc5    | -      |  10.0 |   9.6 | 1000 |  643 |  5032185 |
4521420
Pos:  90 | Rxd4   | Be3    | Be3    |  10.0 |  10.0 |  879 |  935 |  4970703 |
5330804
Pos:  91 | Rxd8   | Qe3    | h3     |   9.0 |   9.0 |  511 |  611 |  2871068 |
3325591
Pos:  92 | Rxg6+  | -      | -      |  10.6 |  10.0 |  264 |   95 |  4942753 |
4938838
Pos:  93 | Bd8    | Bd2    | Rf2    |   8.6 |   8.3 |    0 |    0 |  4865999 |
4780042
Pos:  94 | Bh2    | O-O-O  | O-O-O  |   8.6 |   9.0 |    0 |    0 |  1772729 |
2776425
Pos:  95 | Bxe5+  | Be2    | Be2    |  11.0 |  10.0 |    0 |    0 |  6398331 |
4423433
Pos:  96 | Bc3    | -      | -      |  10.6 |  10.0 |   61 |   87 |  5290073 |
4972909
Pos:  97 | Rxc4   | Rc1    | Rc1    |   9.0 |   9.0 |  549 |  710 |  3210360 |
4335553
Pos:  98 | d4     | -      | -      |   9.6 |   9.6 |  104 |   81 |  4497801 |
4718851
Pos:  99 | Nf6+   | -      | -      |   9.6 |   8.6 |   63 |   85 |  4298969 |
3406295
Pos: 100 | Rxe3   | -      | -      |  10.6 |   9.6 |   78 |   53 |  4868562 |
3773399
Pos: 101 | Rxa6   | Ng5    | Ng5    |  10.0 |   9.6 |    0 |    0 |  4388876 |
4132292
Pos: 102 | Rhg8   | -      | Qxa2   |   9.6 |   9.6 |  222 | 1000 |  3616017 |
3650119
Pos: 103 | Rxd3   | -      | -      |   9.0 |   9.0 |  179 |  226 |  3741093 |
5658021
Pos: 104 | e5     | -      | Qb2    |  10.3 |  10.0 |  965 | 1000 |  6088236 |
5379540
Pos: 105 | Rxh5   | -      | -      |   8.6 |   9.0 |   24 |   68 |  2356619 |
4698216
Pos: 106 | Nxe5   | d4     | Kh1    |  10.0 |  10.0 |  833 |  856 |  4989337 |
4295382
Pos: 107 | Rxc4   | -      | -      |  11.6 |  10.6 |   99 |  236 |  5687878 |
5521472
Pos: 108 | Rxf6   | -      | -      |   8.6 |   8.6 |   45 |   43 |  2759174 |
2965453
Pos: 109 | e6     | -      | -      |   7.6 |   7.6 |  158 |  158 |  2048097 |
2608366
Pos: 110 | Bd2    | Bg5    | Bg5    |   9.6 |   9.6 |  724 |  893 |  4016174 |
5128796
Pos: 111 | Nxe4   | -      | -      |   9.6 |   9.3 |  209 |  764 |  4497980 |
4184511
Pos: 112 | Ng5    | -      | -      |   8.6 |   8.6 |  351 |  123 |  2180358 |
3535476
Pos: 113 | bxc6   | -      | -      |   9.0 |   9.0 |   76 |   86 |  5071942 |
4964637
Pos: 114 | Rxf6   | -      | -      |  10.3 |  10.0 |  439 |   88 |  2618951 |
3557999
Pos: 115 | Bxh6   | -      | -      |  10.0 |   9.6 |   49 |   87 |  4796785 |
3454241
Pos: 116 | Bh4    | Bd5    | Bd5    |   9.0 |   8.6 |    0 |    0 |  3914415 |
2527820
Pos: 117 | Bf8    | Kb1    | Kb1    |   9.0 |   9.0 |  272 |  364 |  1298119 |
1804183
Pos: 118 | Ng6+   | -      | -      |   9.6 |   9.6 |   98 |  120 |  3788493 |
6213735
Pos: 119 | Qb2    | Qf3    | Rf3    |   9.0 |   9.0 |  806 |  841 |  4112386 |
4709754
Pos: 120 | Qxg5+  | -      | -      |  10.6 |   9.6 |  102 |  361 |  3153891 |
3670819
Pos: 121 | Rxh2+  | -      | -      |  13.6 |  13.0 |   22 |   22 |  6304711 |
13168553
Pos: 122 | h4     | -      | -      |   8.6 |   8.6 |  337 |  400 |  3337879 |
3545807
Pos: 123 | Bxh5   | -      | -      |  10.6 |   9.6 |  169 |  665 |  4628368 |
3837163
Pos: 124 | Rxd5   | Bg2    | Bg2    |   9.0 |   9.3 |    0 |    0 |  2820742 |
5386479
Pos: 125 | Rf6    | Rf5    | -      |  10.0 |   9.6 | 1000 |    1 |  4742150 |
4130608
Pos: 126 | Nc3+   | Ke8    | -      |   9.0 |   8.6 | 1000 |   35 |  3434579 |
2950131
Pos: 127 | Nxf5+  | -      | -      |   9.0 |   8.3 |  193 |  252 |  4840098 |
3771390
Pos: 128 | Ne6    | -      | -      |   9.6 |   9.6 |   19 |    1 |  3607277 |
4119862
Pos: 129 | Nxh6   | -      | -      |   9.6 |   9.6 |   16 |   14 |  3443946 |
4462823
Pos: 130 | Bg5    | Ne3    | Ne3    |  10.0 |   9.6 |    0 |    0 |  5177733 |
3911402
Pos: 131 | Bh3    | axb5   | axb5   |   8.6 |   8.6 |  537 |  565 |  2411959 |
2865414
Pos: 132 | Nd6    | -      | -      |  10.0 |  10.0 |   45 |   35 |  2698967 |
2337648
Pos: 133 | Nxf4   | -      | -      |   9.6 |   9.0 |  196 |   68 |  2982217 |
2956597
Pos: 134 | f3     | Rf7    | Qf6    |   8.0 |   8.0 |  580 |  435 |  2781573 |
2313360
Pos: 135 | Nxf3   | Rf7    | Rf7    |   9.0 |   9.0 |  304 |  257 |  1474063 |
1342188
Pos: 136 | Rxe6   | -      | -      |  10.6 |  10.0 |   75 |  105 |  5104159 |
4986142
Pos: 137 | Nxf5   | -      | -      |   8.6 |   8.6 |  547 |  575 |  4619606 |
5139605
Pos: 138 | Rxf4+  | -      | -      |   9.6 |   8.6 |  100 |  109 |  4469998 |
3281839
Pos: 139 | Bxf6   | -      | -      |  10.6 |  10.0 |  175 |  222 |  6536642 |
6755401
Pos: 140 | Nf3+   | -      | -      |   8.6 |   9.0 |  638 |  433 |  3627580 |
4533224
Pos: 141 | Nf5+   | -      | -      |   9.6 |   9.0 |   65 |   61 |  3518819 |
4520289
Pos: 142 | Bxh4   | -      | -      |   9.0 |   9.0 |  388 |  455 |  4171656 |
3376410
Pos: 143 | Nxf7   | -      | -      |   8.6 |   8.6 |  616 |  536 |  3474168 |
4272427
Pos: 144 | Rxc5   | Ne5    | Ne5    |  10.6 |  10.6 |  528 |  716 |  3054497 |
4254222
Pos: 145 | Bh3    | -      | -      |  10.6 |  10.0 |  112 |  142 |  5161728 |
4028931
Pos: 146 | Nxc6   | -      | -      |  10.6 |  10.6 |  587 |  495 |  3763154 |
4597121
Pos: 147 | h3     | Be3    | Be3    |   9.0 |   9.0 |  794 |  891 |  4220587 |
4976541
Pos: 148 | Be6    | -      | -      |  10.0 |  10.6 |   23 |   25 |  2618110 |
5680184
Pos: 149 | Nxh2   | Qg5    | Bf5    |   9.6 |   9.0 |    0 |    0 |  5377920 |
2635147
Pos: 150 | f4     | -      | -      |  12.0 |  12.0 |  130 |  130 |  5592310 |
5428767
Pos: 151 | Rxc6   | -      | Rd6    |  13.3 |  13.3 |  528 | 1000 |  3834208 |
3059267
Pos: 152 | f6     | -      | -      |   8.6 |   8.6 |  202 |  235 |  3204718 |
4677819
Pos: 153 | e5     | Ba6    | Ba6    |  10.6 |   9.6 |    0 |    0 |  4802799 |
3248246
Pos: 154 | b5     | -      | Qf4    |   9.6 |   9.6 |  624 | 1000 |  6965856 |
5346725
Pos: 155 | Rxa6   | -      | -      |  10.6 |   9.6 |  657 |  789 |  5407643 |
5346630
Pos: 156 | Rc4    | -      | -      |  13.6 |  12.0 |  432 |  659 |  7487082 |
5671496
Pos: 157 | Nxe6   | -      | -      |  11.6 |  11.0 |    9 |   13 |  4548799 |
5596912
Pos: 158 | Ba6    | -      | Kf3    |   9.6 |  10.0 |   99 | 1000 |  5539155 |
4959716
Pos: 159 | Nxa7   | Rfe1   | Bf4    |   9.6 |   9.6 |  492 |  268 |  2897038 |
1822645
Pos: 160 | Rxb2   | c3     | c3     |  13.0 |  11.6 |    0 |    0 |  5964974 |
5060726
Pos: 161 | cxb6   | -      | -      |  11.6 |  11.6 |   80 |  105 |  5350193 |
6474694
Pos: 162 | f5     | Rxe8+  | Rxe8+  |  11.6 |  10.6 |    0 |    0 |  6109265 |
5605217
Pos: 163 | Bxb3   | c4     | c4     |  13.0 |  13.0 |  577 |  569 |  2893519 |
3875034
Pos: 164 | Bxh7+  | -      | -      |   9.6 |   9.0 |   41 |   32 |  6332861 |
4512055
Pos: 165 | Bxh7+  | e6     | e6     |   9.0 |   8.6 |    0 |    0 |  4859339 |
3653444
Pos: 166 | Bxh7+  | -      | -      |   9.6 |   8.6 |   28 |   30 |  3303891 |
1425061
Pos: 167 | Bxh7+  | -      | -      |   9.6 |   9.0 |  238 |  345 |  6846323 |
5489967
Pos: 168 | Rxh7+  | -      | -      |   9.0 |   8.6 |  176 |  171 |  4850390 |
3566893
Pos: 169 | Rxh7   | -      | -      |  10.0 |  10.3 |   85 |  900 |  4214401 |
4143596
Pos: 170 | Bxh7+  | -      | -      |   9.6 |   8.6 |   54 |   54 |  6450279 |
4778717
Pos: 171 | Nxh7   | Ng4    | Ng4    |   9.6 |   9.6 |  960 |  708 |  4352144 |
4042034
Pos: 172 | Nxh2   | -      | -      |   9.0 |   9.0 |  200 |  205 |  4685585 |
5393321
Pos: 173 | Bxh7+  | -      | -      |   8.6 |   8.6 |   71 |  145 |  2870316 |
4785799
Pos: 174 | Qxh7+  | -      | -      |  12.6 |  11.0 |   67 |   82 | 12637945 |
10455002
Pos: 175 | Bxh7+  | -      | -      |   7.6 |   7.6 |  347 |  312 |  4315370 |
3869957
Pos: 176 | Nxh7   | Bxe6   | Bxe6   |   9.6 |   9.3 |    0 |    0 |  5229866 |
4912906
Pos: 177 | Rxh7   | -      | -      |   9.6 |   9.6 |   77 |  183 |  3600114 |
3629262
Pos: 178 | Nxh7   | e6     | e6     |  10.0 |   9.0 |    0 |    0 |  4807546 |
3450169
Pos: 179 | Bxh7+  | Bh3    | Bg4    |  10.0 |   9.6 |    0 |    0 |  4677874 |
3538094
Pos: 180 | Bxh7+  | -      | -      |   9.0 |   9.0 |  201 |   11 |  2818734 |
2670067
Pos: 181 | Rxh2   | Nxg4   | Qb8    |  10.0 |   9.6 |    0 |    0 |  3351722 |
4534124
Pos: 182 | Nxh7   | Bd2    | Bd2    |  10.6 |  10.6 |  618 |  591 |  3581004 |
3927991
Pos: 183 | Rxh7   | -      | -      |   9.6 |   9.6 |   92 |  341 |  3023799 |
5486345

Warning: node count is different!

Node count is for same depth only.

             Old             New            Ratio
-----------------------------------------------------
Nodes:    276192044       332673312         120.45%
Time:         42505           47998         112.92%
Depth:            9.73            9.41       -0.32
Solved:         126             123

So, you can see here that verification nullmove searches 20% more
nodes, took 12% more time, searched 1/3 of a ply less deep and
missed three more positions.

That's pretty much a 'total loss' :)

--
GCP



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Last modified: Thu, 07 Jul 11 08:48:38 -0700

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