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Subject: Re: Test position: Spassky-Tal,Riga 1958

Author: Mogens Larsen

Date: 16:23:13 07/17/00

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On July 17, 2000 at 17:43:49, John Merlino wrote:

>On July 17, 2000 at 11:01:29, José Antônio Fabiano Mendes wrote:
>
>>[D]2R4Q/3qkp2/3r2p1/3p3p/3P3P/5P2/5KP1/8 w
>>"Spassky´s famous loss!He played 1.Qf8+ Kf6 2.Re8 but after
>>2...Re6 3.Qh8+ Kf5 4.Qh6 Kf6 White has no more than a draw.
>>Chekhover subsequently pointed out what had been missed by
>>both players --- 1.g4! to use his pawns to take vital squares
>>off the enemy king." Can the chess programs find this move? JAFM
>>Source:"Spassky´s 100 Best Games" by Bernard Cafferty,second
>>edition 1973,Batsford,section "Find the Winning Continuation!",
>>page 246,position 6 ============================================
>
>Chessmaster says that Spassky failed with 2.Re8, and that 1.Qf8+ Kf6 is correct.
>THEN it plays 2.g4, and the eval is 1.34 for White. It finds this in 10 seconds
>on a P3-600, at a depth of 4/8. PV after 1:10, depth 5/9:
>
>1.Qf8+ Kf6 2.g4 hxg4 3.fxg4 Re6 4.Rc3 Re4 5.Rf3+ Ke6 6.g5 Qe7 7.Qc8+ Kd6 8.Rf6+
>Re6 9.Qc5+ Kd7 10.Qxd5+ Ke8 11.Rxe6 fxe6

Fritz 6 light agrees with the estimation of Chessmaster that Qf8+ is best.

Best wishes...
Mogens



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