Author: Robert Hyatt
Date: 18:12:31 05/22/99
Go up one level in this thread
On May 22, 1999 at 16:38:07, James Robertson wrote:
>On May 22, 1999 at 15:53:48, Mark Young wrote:
>
>>On May 22, 1999 at 15:40:58, Marc Plum wrote:
>>
>
>[snip]
>
>>
>>Well, I would not put to much stock in this one game. Rebel 10 played I think
>>the best player when playing against computer programs. Also again it seems
>>Rebel 10's bug?? or huge tactical hole in its program that I have talked about
>>before came up and bit Rebel 10 hard again.
>
>Bug? Huge tactical hole? On my machine (P233), my program searches more than 10
>minutes and shows no signs of seing the danger for white _after_ 26. f4. Crafty
>16.3 still does not see the danger and it has been searching for more than 11
>minutes.
>
You are using the wrong crafty. 16.6 is far better at king safety and already
feels that this is big trouble for white, even before f4. IE at move 23, at
depth=14 (1.5 minutes on my quad) the best move (exd4) had already failed low
for white...
The problem is that _crafty_ was picking these threats up at depth=13/14,
which was way beyond Rebel's search depth most likely...
After f4, this is crafty's analysis during the game:
(4) 12 24.80 -0.26 26. ... Qd3 27. Rxb7 Qxd4+ 28. Kh1
Rc8 29. Qa1 Qd2 30. Rd7 Re8 31. Re7
Rc8 32. b3 Qc3
12 1:05 -0.07 26. ... h5 27. Rxb7 Ra5 28. Rb5 Rxb5
29. cxb5 Kh7 30. b6 Qd3 31. Kh1 Qxd4
32. Bf3 <HT>
12-> 1:05 -0.07 26. ... h5 27. Rxb7 Ra5 28. Rb5 Rxb5
29. cxb5 Kh7 30. b6 Qd3 31. Kh1 Qxd4
32. Bf3 <HT>
13 1:38 ++ 26. ... h5!!
13 8:21 3.43 26. ... h5 27. Rxb4 Re8 28. Rb5 Re3
29. Qa1 Re4 30. Qa8+ Re8 31. Qxe8+
Qxe8 32. Kf2 Bg4 33. Rxb7 Qe2+ 34.
Kg1 Qe3+ 35. Kg2 Qxd4
13-> 8:45 3.43 26. ... h5 27. Rxb4 Re8 28. Rb5 Re3
29. Qa1 Re4 30. Qa8+ Re8 31. Qxe8+
Qxe8 32. Kf2 Bg4 33. Rxb7 Qe2+ 34.
Kg1 Qe3+ 35. Kg2 Qxd4
14 9:42 3.43 26. ... h5 27. Rxb4 Re8 28. Rb5 Re3
29. Qa1 Re4 30. Qa8+ Re8 31. Qxe8+
Qxe8 32. Kf2 Bg4 33. Rxb7 Qe2+ 34.
Kg1 Qe1+ 35. Kg2 Qd2+ 36. Kh1 Qd1+
37. Kg2 Qxd4
Any crafty should find h5 reasonably quickly... as this is just a tactical
rip of white, totally... Took mine 1 minute to realize that h5 was the
right move, and 1:38 to realize that it was outright winning...
>>As in my computer vs computer games
>>Rebel 10 gets a advantage
>
>You honestly believe that Rebel had an advantage before playing 26. f4? That
>move was just the icing on the cake.
>
>James
Right... white was lost (according to crafty) when it played Rb5, as my
scores started failing low/high (depending on who was on move) getting very
good for black, but at extreme depths (but depths it can actually reach as this
analysis was being done real-time during the game in channel 211). Rohde said
white was lost on Ra5, which was move 21. However, f5 showed that something
is definitely missing in king safety. And there are a _bunch_ of players around
that will exploit that until it gets cleared up. As the saying goes, been
there, done that.
>
>>only to play a stink bomb that other programs see in
>>seconds. This counts for most of Rebel 10 losses in the games I have played with
>>it against other programs. I hope this loss will get Ed on the ball to fix this
>>weakness.
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