Author: Robert Hyatt
Date: 19:44:33 09/21/04
Go up one level in this thread
On September 21, 2004 at 21:53:47, Dann Corbit wrote:
>On September 21, 2004 at 19:41:42, Stuart Cracraft wrote:
>[snip]
>>// white knight
>> {
>> OFF, OFF, OFF, OFF, OFF, OFF, OFF, OFF, OFF, OFF,
>> OFF, OFF, OFF, OFF, OFF, OFF, OFF, OFF, OFF, OFF,
>> OFF, 64, 41, 60, 67, 67, 60, 41, 64, OFF,
>> OFF, 48, 79, 91, 76, 76, 91, 79, 48, OFF,
>> OFF, 57, 86, 95, 111, 111, 95, 86, 57, OFF,
>> OFF, 77, 105, 123, 129, 129, 123, 105, 77, OFF,
>> OFF, 99, 124, 129, 145, 145, 129, 124, 99, OFF,
>> OFF , 79, 114, 116, 144, 144, 116, 114, 79, OFF,
>> OFF, 53, 77, 108, 81, 81, 108, 77, 53, OFF,
>> OFF, 0, 71, 73, 73, 73, 73, 71, 0, OFF,
>> OFF, OFF, OFF, OFF, OFF, OFF, OFF, OFF, OFF, OFF,
>> OFF, OFF, OFF, OFF, OFF, OFF, OFF, OFF, OFF, OFF
>> },
>
>A value of 64 for A8 and H8 seems highly suspect to me. Similarly for A1 and H1
>for the black knight.
Any positive value for _any_ square on the edge of the board seems to be more
than "a bit suspect". They look outright _wrong_...
The problem is that it is very likely that the pc/sq values are not independent
variables, they are closely associated with other eval terms modified during the
tuning. Trying to transplant them to a different program/evaluation is a
mistake...
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