Author: Roy Eassa
Date: 08:47:34 12/08/01
Go up one level in this thread
On December 07, 2001 at 21:03:20, Dann Corbit wrote:
>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.
>
>Quite an interesting position...
>[D] 2kr3r/ppp2ppp/1b3nq1/4p2b/1PB1P3/2P1B3/P1QN1PPP/R4RK1 b - -
>
Some analysis, using Fritz 6 and Gambit Tiger 2 (Athlon 1.2):
1...Rxd2
[1...Bxe3 2.fxe3 Qh6 3.Rae1 Ng4 4.Rf3 Rd6 -/+ (4...Rd7 -/+)]
2.Qxd2
[2.Bxd2? Bf3 3.g3 Qh5 4.Rfe1
(4.h4 Qg4 5.Kh2 Nxe4 –+)
4...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.Bg5
[3.g3 Rd8
(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+ -/+)
4.Qc1 Qh5 5.h4 Nxe4 6.Bxb6 Qg4! –+]
3...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 5.Bxf7
[5.h4 Rxh4 6.Rfd1 Rh8 7.Kf1 g4! –+]
5...Qxf7 6.Qxg5 Nd7 -/+
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