Author: Robert Sherman
Date: 20:56:48 11/09/97
Go up one level in this thread
On November 09, 1997 at 17:00:03, Robert Hyatt wrote:
>On November 09, 1997 at 16:14:30, Robert Sherman wrote:
>
>>On November 09, 1997 at 13:50:58, Jack Leverette wrote:
>>
>>>Dear Rob Sherman:
>>>This isn't right. 4. ...Nc6. was move 2.
>>>I believe the move is 4. .. Nf6.
>>>
>>>Yours,
>>>The AceyMan
>>
>>Sorry I typed it in fast from memory. Your right it should be 4....Nf6.
>>
>>Robert Sherman
>
>I ran this thru Crafty at one minute per move on my P5 notebook. First,
>here is the annotated game score:
>
> 1. e4 e5
> 2. Nf3 Nc6
> 3. Bc4 Bc5
> 4. Nc3 Nf6
> 5. Nd5 Nxe4
> {9:+0.70 Nxe4 Qe2 Nxf2 Rf1 Ng4 h3 Nf6 Nxe5 Nxd5 Bxd5}
> 6. d3 Nxf2
> {9:+5.24 Nxf2 Qe2 Nxh1 Nxe5 Bf2+ Kd1 Nd4 Qf1 f6 Nxd7
>Bxd7 Qxh1}
> 7. Qe2 Nxh1
> {8:+4.94 Nxh1 Nxe5 Nd4 Nxc7+ Qxc7 Bxf7+ Ke7 Ng6+ Kxf7
>Nxh8+ Kf8 Qf1+ Kg8 Qxh1 Kxh8}
> 8. Ng5 O-O
> {8:-2.14 O-O Qe4 Bf2+ Kd1 Qxg5 Bxg5 b5 Nf6+ gxf6 Bxf7+
>Rxf7}
> {8:+5.74 f5 Nf7 Kxf7 Nxc7+ d5 Bxd5+ Kg6 Nxa8 Bf2+ Kd1
>Qxd5}
Wow! I am surprised at the difference in score here. I have tested this
game with almost all the top commercial programs (Genius, Mchess, Fritz,
Rebel etc. and they all pick O-O over f5. While a couple of IM's prefer
f5. I think this could put an end to DB not playing Qb6 conspiracy
theory. Very human-like approach of not walking into an attack although
I don't think your scores are accurate.
> 9. Nxc7 Qxc7
> {9:+2.57 Qxc7 Qh5 h6 Bxf7+ Kh8 Qg6 Bb4+ Kf1 Ng3+ hxg3
Odd doesn't walk into an attack but walks into a mate in 6. Again
Crafty show that it is possible for a computer to be scared of an attack
but still miss a deep mate.
>Rxf7+ Nxf7+ Kg8 Bxh6}
> 10. Qh5 h6
> {9:-2.44 h6 Bxf7+ Kh8 Qg6 Qa5+ Bd2 Bf2+ Ke2 Ng3+ hxg3
>Qxd2+ Kxd2
> Be3+ Kxe3 hxg5}
> 11. Bxf7+ Kh8
> {12:-Mat05 Kh8 Qg6 Qa5+ c3 Bf2+ Kf1 Ng3+ hxg3 hxg5 Qh5#}
> 12. Qg6 Qa5+
> {11:-Mat04 Qa5+ c3 Bf2+ Kf1 Ng3+ hxg3 hxg5 Qh5#}
> 13. c3 Qxc3+
> {14:-Mat03 Qxc3+ bxc3 Bf2+ Kd1 hxg5 Qh5#}
> 14. bxc3 Bf2+
> {14:-Mat02 Bf2+ Kd1 hxg5 Qh5#}
> 15. Kd1 Ne7
> {14:-Mat01 Ne7 Qh7#}
> {14:-Mat01 hxg5 Qh5#}
> 16. Qh7#
>
>
>I didn't study it carefully, but black's move 8 seems horrible, castling
>right into the attack. there is an 8 pawn difference between O-O and
>f5,
>although I can't say what would happen at a deeper depth.
>
>Where were you wanting Rebel to play a different move? IE everything
>looks
>bearable up until it castles into white's pieces...
f5 is better than o-o but castling is bearable. The ?? move is Qxc7
Robert Sherman
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