Author: allan johnson
Date: 23:08:20 11/26/99
Go up one level in this thread
On November 26, 1999 at 03:12:49, allan johnson wrote:
> Could someone with a Rebel 10 on a fairly fast machine tell me how long it
>takes to find Bb5 in the following problem.
>2r1r1k1/pp1bb2p/3pppp1/q6n/4P2Q/2N1BPP/PPP1BP2/2KR2R1 (white to move)
> On my Celeron 433 64mb ram Rebel 9 finds Bb5 in 1.17min.It is not until
>2.43mins that it also locates the sac bxg5 after 1Bb5 Bxb5 2Qxh4 g5.Up until
>then it suggests h4.
>I'd also be interested in how long it takes Fritz6 to find the moves Results
>will effect my next computer chess program purchase.
>Thanks Allan
Sorry about the stuff up.Late night you know.Anyway it should read
2N1BPP1 on line 6 and Qxh5 move 2.
The position arises from a game back in 1986 between Hitech and Schach 2.7
Dr Laszlo Lindner who reviewed the game in Chess Life (nov 1986) said that
Hitech's creative achievement in this game represented a milestone in computer
chess."If Schach 2.7 had accepted White's rook sac on move 23 there would
have been 10 distinct mating variations with the black king mated on 10
differnt squares!"
The full game is below
White Hitech
Black Schach
Opening Sicilian Defence
1e4 c5
2Nf3 d6
3Bc4 e6
4d4 cxd4
5Nxd4 Nf6
6Nc3 Be7
7Be3 Nbd7
8Qd2 Ne5
9Be2 0-0
10h3 Bd7
11Nf3 Nxf3+
12gxf3 Qa5
130-0-0 Rac8?(Rfc8)
14Rhg1 Rfe8
15Bh6 g6
16Bg5 Qc5? b5 was suggested
17Qf4 Nh5 I know Fischer can get away with it but knights on
the side of the board?Hmmm
18Qh4 f6
19Be3 Qa5
20Bb5! Bxb5
21Qxh5 g5 Apparently at this stage GM Hort said that if you played
21..Rxc3 then black threatens 22...Rxc2+! 23Kb1 Rxb2+!!
24Kxb2 Qb4+ and black forces mate.Hans Berliner, the
developer of Hitech then pointed out that Hitech calculated
mate in 7 after 21...Rxc3 22Rxg6+ Kh8 23Qxh7+Kxh7 24Rh6+ Kg7
25Rg1 Kf8 26Rh8+ Kf7 27Rh7+ Kf8 28Bh6 mate.Everyone in the hall
,according to Lindner, was stupified.
Anyway back to the game
22Bxg5 fxg3
23Rxg5+!! Kh8
24R(d)g1 Resigns
So what do people think of the standard of play in this game?How does it
rate in terms of chess understanding in relation to today's programs/
Is it possible to evaluate a progam's strenght from a game like this?
As I said in one comment Knights on the side of the board is something I try to
avoid.I know that sometimes it's difficult to do and a situation might arise
in which it is useful to put it there.The point is though could the position
have been avoided with better previous moves?Comments anyone?
Regards Rabbits
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