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

Author: Chessfun

Date: 12:27:36 07/17/00

Go up one level in this thread


On July 17, 2000 at 15:23:15, blass uri wrote:

>On July 17, 2000 at 13:41:53, pavel 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 ============================================
>>
>>
>>this is what junior6 finds.....in 14 plies. 3 mins
>>
>>Analysis by Junior 6.0:
>>
>>1. ± (0.99): 1.g2-g4 h5xg4
>>2. ± (0.78): 1.Qh8-f8+ Ke7-f6 2.g2-g4 Rd6-e6 3.g4xh5
>>
>>(mahamood, MyTown 18.07.2000)
>
>Depth 14 of Junior is not 14 plies and I think that using the 2 options make all
>the chessbase engines slower.
>
>You should use only one option.
>
>Uri


I think he means 14 half moves.
New position
2R4Q/3qkp2/3r2p1/3p3p/3P3P/5P2/5KP1/8 w - - 0 1

Analysis by Junior 6.1:
1.g4 hxg4 2.Qf8+ Kf6 3.fxg4 Ra6 4.Qh8+ Ke7 5.h5 Rb6 6.Qe5+ Re6 7.Qb8
  ±  (0.89)   Depth: 14   00:00:43  13945kN

(Bird, Scarb 17.07.2000)

Thanks.








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