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Subject: Re: Any program see the sacrifice 14 Qxe4?

Author: Uri Blass

Date: 19:46:31 11/19/04

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On November 19, 2004 at 22:07:28, Cliff Sears wrote:

>[d] r1b2r1k/ppp1q1pp/2n1pb2/2P5/2BPpp2/P3PPB1/1PQ3PP/2KR2NR w - - 0 14
>wKc1,Qc2,Ng1,Bc4,g3,Rd1,h1,Pa3,b2,c5,d4,e3,f3,g2,h2/bKh8,Qe7,Nc6,Bc8,f6,Ra8,f8,Pa7,b7,c7,e4,e6,f4,g7,h7
>
>From the book "The World's Greates Chess Games" by Burgess, Nunn, and Emms, the
>commentary is as follows:
>
>14 Qxe4!!
>
>"This brilliant piece sacrifice kills Black's attempt at snatching the
>initiative.  Lasker was once more hoping that White would grab the offered pawn.
>After 14 Bxf4 e5 15 dxe5 Nxe5 both 16 Bxe5 Bxe5 17 f4 Bf6 18 Bd5 Bf5 19 Bxb7
>Rab8 and 16 Qxe4 Bf5 17 Qxf5 Nxc4 leave Black firmly on the offensive. After 14
>Qxe4 White gains only two pawns for the piece. On the other hand, Black is
>reduced to a grom defensivve job, which would not suited Lasker at all."
>
>After a short time the programs I am testing have not decided it is the best
>move.

Maybe it is not the best move.

What does the book suggest against 15...g5 onstead of 15...g6?
Movei evaluate it as 0.9 pawns for black.


depth=15 +0.90 g7g5 g1e2 f8f7 h1h6 c8d7 d1h1 a8g8 c1b1 g8g7 e2c3 g5g4 f3g4 f7f8
h1f1 e6e5
Nodes: 179325666 NPS: 146876
Time: 00:20:20.93

Uri



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