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Subject: Re: Checks in the Qsearch

Author: Uri Blass

Date: 01:41:03 07/10/02

Go up one level in this thread


On July 10, 2002 at 03:46:08, Gian-Carlo Pascutto wrote:

>On July 09, 2002 at 16:37:53, Robert Hyatt wrote:
>
>>beware of running tactical tests only.  They tend to highlight the utility
>>of null-move since so many branches are horribly losing.  I use a combination
>>of positions with some tactics, some quiet, some opening, some endgames...
>
>Your idea is right generally. Though in this case, the lost tactics
>will greatly affect the number of solutions found.
>
>(I get a great drop in ECM-GCP if I use R=3 instead of my hybrid scheme)
>
>--
>GCP

I do not get it but I did not compare recursive R=3
with options of R=3 only in part of the tree.

My results in GCP test suite with recursive R=3 on p800(64 mbytes hash)
are in the bottom of this post
Note that one problem (ECM 1197) is not correct
so it should be practically 142 out of 182
and not 142 of 183.

In the previous version I solved only 139 out of 183
but to be fair it may be sligthly more because my anti virus worked
in a small part of that test.

Uri

Results:

<Sec Solved Total
---- ------ ------
   1     27     27
   2     16     43
   3      9     52
   4      4     56
   5      2     58
   6      3     61
   7      4     65
   8      5     70
   9      2     72
  10      3     75
  11      0     75
  12      4     79
  13      2     81
  14      1     82
  15      1     83
  16      0     83
  17      1     84
  18      1     85
  19      3     88
  20      1     89
  21      1     90
  22      3     93
  23      1     94
  24      1     95
  25      1     96
  26      1     97
  27      1     98
  28      0     98
  29      1     99
  30      0     99
  31      0     99
  32      0     99
  33      0     99
  34      1    100
  35      3    103
  36      0    103
  37      0    103
  38      0    103
  39      2    105
  40      0    105
  41      0    105
  42      0    105
  43      0    105
  44      0    105
  45      1    106
  46      0    106
  47      1    107
  48      0    107
  49      0    107
  50      0    107
  51      1    108
  52      0    108
  53      1    109
  54      1    110
  55      0    110
  56      1    111
  57      1    112
  58      0    112
  59      0    112
  60      0    112
  61      0    112
  62      1    113
  63      0    113
  64      0    113
  65      0    113
  66      0    113
  67      0    113
  68      1    114
  69      0    114
  70      1    115
  71      0    115
  72      1    116
  73      0    116
  74      0    116
  75      0    116
  76      0    116
  77      0    116
  78      0    116
  79      0    116
  80      0    116
  81      0    116
  82      1    117
  83      0    117
  84      1    118
  85      1    119
  86      0    119
  87      0    119
  88      0    119
  89      0    119
  90      0    119
  91      0    119
  92      0    119
  93      0    119
  94      1    120
  95      0    120
  96      1    121
  97      0    121
  98      0    121
  99      0    121
 100      0    121
 101      0    121
 102      0    121
 103      0    121
 104      0    121
 105      0    121
 106      0    121
 107      0    121
 108      0    121
 109      0    121
 110      1    122
 111      0    122
 112      0    122
 113      0    122
 114      0    122
 115      0    122
 116      0    122
 117      0    122
 118      0    122
 119      0    122
 120      1    123
 121      0    123
 122      0    123
 123      0    123
 124      0    123
 125      0    123
 126      0    123
 127      0    123
 128      0    123
 129      0    123
 130      1    124
 131      0    124
 132      0    124
 133      0    124
 134      0    124
 135      1    125
 136      0    125
 137      0    125
 138      0    125
 139      0    125
 140      1    126
 141      0    126
 142      1    127
 143      0    127
 144      0    127
 145      0    127
 146      0    127
 147      0    127
 148      0    127
 149      0    127
 150      0    127
 151      0    127
 152      0    127
 153      0    127
 154      0    127
 155      0    127
 156      0    127
 157      0    127
 158      1    128
 159      0    128
 160      1    129
 161      1    130
 162      0    130
 163      0    130
 164      0    130
 165      0    130
 166      0    130
 167      0    130
 168      2    132
 169      0    132
 170      0    132
 171      0    132
 172      0    132
 173      0    132
 174      0    132
 175      0    132
 176      0    132
 177      0    132
 178      0    132
 179      0    132
 180      0    132
 181      0    132
 182      0    132
 183      0    132
 184      0    132
 185      0    132
 186      0    132
 187      0    132
 188      0    132
 189      0    132
 190      0    132
 191      0    132
 192      0    132
 193      0    132
 194      0    132
 195      0    132
 196      0    132
 197      0    132
 198      0    132
 199      0    132
 200      0    132
 201      0    132
 202      1    133
 203      0    133
 204      0    133
 205      0    133
 206      1    134
 207      0    134
 208      0    134
 209      1    135
 210      0    135
 211      0    135
 212      0    135
 213      1    136
 214      0    136
 215      0    136
 216      0    136
 217      0    136
 218      0    136
 219      0    136
 220      0    136
 221      0    136
 222      0    136
 223      0    136
 224      0    136
 225      1    137
 226      0    137
 227      0    137
 228      0    137
 229      0    137
 230      0    137
 231      0    137
 232      0    137
 233      0    137
 234      0    137
 235      0    137
 236      0    137
 237      0    137
 238      1    138
 239      1    139
 240      0    139
 241      0    139
 242      0    139
 243      0    139
 244      0    139
 245      0    139
 246      0    139
 247      0    139
 248      0    139
 249      0    139
 250      0    139
 251      0    139
 252      0    139
 253      0    139
 254      0    139
 255      0    139
 256      0    139
 257      0    139
 258      0    139
 259      0    139
 260      0    139
 261      0    139
 262      0    139
 263      0    139
 264      0    139
 265      2    141
 266      0    141
 267      0    141
 268      0    141
 269      0    141
 270      0    141
 271      0    141
 272      0    141
 273      0    141
 274      0    141
 275      0    141
 276      0    141
 277      0    141
 278      0    141
 279      0    141
 280      1    142

142 problems solved.
41 problems unsolved.



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