Author: Roy Eassa
Date: 11:59:09 12/07/01
Go up one level in this thread
On December 07, 2001 at 12:48:22, ALI MIRAFZALI wrote:
>The following position occured in one of the oldest Correspondence games
>played in America:
[D] 2kr3r/ppp2ppp/1b3nq1/4p2b/1PB1P3/2P1B3/P1QN1PPP/R4RK1 b - - 0 1
>This game was played in 1840.
>Here black played 15...Rxd2!! Game finished with 16.Qxd2 Nxe4 17.Qc1 Bf3
>18.g3 h5! 19.Bd5 h4 20.Bxe4 Qxe4 21.Bxb6 Qg4 22.Qe3 axb6 23.R(f)-b1 e4
>24.Qe1 f5! 25.Rb2 f4 26.R(a)-b1 Black announced Mate in Some number of moves.
>Fritz 6 and chessmaster 8000 donot see 15...Rxd2!! No matter how long one runs
>the position.
>Does your program see 15...Rxd2!!!.Althuogh Tactics is the area that Computers
>are naturally strong ;it is interesting that one still runs into tactical
>positions which programs cannot solve.Please indicate your result.
Some analysis with the help of Fritz 6 (Athlon 1.2) indicates that Black can
play 1...Bxe3 and do quite well, or, after 1...Rxd2 2.Qxd2, Black can play
2...Bf3 and do well also.
1...Rxd2
[1...Bxe3 2.fxe3 Qh6 3.Rae1 Ng4 4.Rf3 Rd7 -/+]
2.Qxd2
[2.Bxd2? Bf3 3.g3 Qh5 4.Rfe1 Ng4 5.h4 Bxf2+ –+]
2...Bf3
[2...Nxe4 3.Qc1 Bf3 4.g3 h5 5.Bxb6 h4! 6.Qe3 hxg3 7.Qxf3 gxf2+
8.Kh1 Ng3+ 9.Kg2 Nxf1+ 10.Kxf1 Qg1+ 11.Ke2 Qxa1 12.Bxf2 Qb2+ -/+]
3.g3
[3.Bg5 h6
(3...Nxe4 4.Bd3 Qxg5 5.Qxg5 Nxg5 6.Bf5+ Kb8 7.gxf3 =+)
4.gxf3
(4.Bxf7 Qxf7 5.Bxf6 Qg6! 6.Bg5 hxg5–+)
4...hxg5 -/+]
3...Qh5 4.h4 Nxe4 5.Qe1 Qg4! 6.Kh2 h6! 7.Rg1 Ng5! 8.Bf1 Qf5!
[8...Be4? 9.Bxg5 hxg5 10.Bh3 +-]
9.Rg2
[9.c4 Bd4 10.Rc1 Be4 –+]
9...Bxg2 10.Bxg2 Nf3+ -/+
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