Author: Dann Corbit
Date: 09:23:20 11/11/98
Go up one level in this thread
On November 11, 1998 at 02:02:55, Mark Young wrote:
>I let Rebel 10 play out the position, one from the start of the position, one
>with forcing RxN. Both position end up very much the same, and both look winning
>for white.
>
>Is there any downside to playing BxB first, or do they both win?
[snip]
If we are looking for a best move, we should find one that always leads to a
win. This is actually very hard to do. For instance, for move 1, what is the
best move? ;-)
It appears that the evals are not equal 15 plies forward:
15. Bb3+ { 00:00:02 6.01 -1.36 Ke6-d6 Rg4xg3 Rc7-e7 Rg3-g6+ Kd6-c5
>Bb3-e6 Rc8-f8 (c) } 15... Kd6
[snip]
15. Rxg3 { 00:00:02 8.00 -1.60 Rc8-f8 c2-c3 b4xc3
>b2xc3 Rc7-c5 Kb1-c2 Rc5-a5 (c) } 15... Rf8
So one move appears to be better than the other (though not by any enormous
margin). This, of course, begs the question, "Were all the intervening moves
optimal?" and again we do not know the answer.
Finding the best move is very difficult. It is hard to be sure that any given
move really is the very best possible.
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