Reply
 
LinkBack Thread Tools Display Modes
  #1   Report Post  
Old May 17th 11, 08:38 AM posted to rec.games.chess.analysis
external usenet poster
 
First recorded activity by ChessBanter: May 2011
Posts: 2
Default Please consider the following position...

r2q1bnr/1b1npkpp/p7/Bp6/2pP4/4P3/1P3PPP/RN1QKB1R b KQ - 0 10

I played Black and won the game, but in my post-game analysis my
computer (Deep Junior 2010 64 bit) has a problem with my move here,
and I don't understand why. White just played 10.Ba5 and I must
address the attack on my Queen. In the game, I played 10..Nb6.

Well, after calculating 25 billion moves, DJ scores 10..Qb8 the best
at -2.71, with 10..Qe8 and 10..Qc8 following as close second and third
best candidates. But DJ scores my 10..Nb6 almost _a full pawn_
lower! I was wondering if someone here could tell me what the threat
is. The DJ analysis follows below.

I knew that my move created a pin, but the pin was easily alleviated
by a subsequent ..Qd6, after which I thought my position would be
superior to that resulting from playing DJ's #1 candidate, 10.Qb7. So
what am I missing.

I welcome any input or explanation you might have. Thanks.

LSDave


CLIP ANALYSIS - BEFORE MY 10..Nb6 (based on 25 BILLION moves)

25: Ioan - Dave, 2011
r2q1bnr/1b1npkpp/p7/Bp6/2pP4/4P3/1P3PPP/RN1QKB1R b KQ - 0 1

Analysis by Deep Junior 2010 win64 UCI:

1. -+ (-2.72): 10...Qb8 11.Qh5+ g6 12.Qh3 Ndf6 13.Nd2 Nh6 14.Nf3 Bc8
15.Ng5+ Kg7 16.Qf3 Nf5 17.Bc7
2. -+ (-2.52): 10...Qe8 11.b3 cxb3 12.Qxb3+ e6 13.Nc3 Ngf6 14.f3 Nb8
15.Bd3 Nc6 16.0-0 Nxa5
3. -+ (-2.47): 10...Qc8 11.Be2 Bxg2 12.Rg1 Bb7 13.Nd2 Ngf6 14.Nf3 Ne4
15.Rc1 e6 16.Rg4 Be7 17.Bd3 Nd6 18.Bc2 g6 19.Ng5+ Bxg5
4. -+ (-1.85): 10...Nb6 11.Be2 Nf6 12.0-0 g6 13.Bf3 Qc7 14.b3 Rb8
5. +- (1.84): 10...Ngf6 11.Bxd8 Rxd8 12.Be2 e5 13.0-0 Nc5 14.Na3 exd4
15.exd4 Be7 16.Bxc4+ bxc4 17.Nxc4 Rhe8 18.Rc1 Ncd7 19.Qb3 Bd5
6. +- (2.22): 10...Qxa5+ 11.Rxa5 e6 12.Ra1 Bb4+ 13.Nc3 Ndf6 14.Be2
Bxg2 15.Rg1 Bd5 16.Kf1 Bxc3 17.bxc3 Ne7 18.Bf3 Ne4 19.Bxe4 Bxe4
7. +- (2.52): 10...g6 11.Bxd8 Rxd8 12.b3 cxb3 13.Qxb3+ Kg7 14.Be2
Bxg2 15.Rg1 Bb7 16.Nd2 e5 17.Bf3 exd4 18.exd4 Bxf3 19.Nxf3 Re8+
8. +- (2.65): 10...e5 11.Bxd8 Rxd8 12.dxe5 Be7 13.Qd4 Nc5 14.Qf4+ Ke8
15.Be2 Nh6 16.0-0 Rf8 17.Qg3 Nf5 18.Qg4 g6 19.Nc3 Nd3
9. +- (2.67): 10...Ndf6 11.Bxd8
  #2   Report Post  
Old May 17th 11, 08:41 AM posted to rec.games.chess.analysis
external usenet poster
 
First recorded activity by ChessBanter: May 2011
Posts: 2
Default Please consider the following position...

On May 17, 3:38*am, LS Dave wrote:
I knew that my move created a pin, but the pin was easily alleviated
by a subsequent ..Qd6, after which I thought my position would be
superior to that resulting from playing DJ's #1 candidate, ***10.Qb8***. *So
what am I missing.


Corrected the ***typo***. It should read 10.Qb8, not 10.Qb7.

Thanks again.
Reply
Thread Tools
Display Modes

Posting Rules

Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Most Complex Position of C20th, Taimanov Fischer game 3 ChessFire rec.games.chess.misc (Chess General) 2 February 17th 11 10:18 PM
Jackal, Lebel & Kowalski anyone? ChessFire rec.games.chess.misc (Chess General) 33 March 6th 10 05:54 AM
Bobby Fischer has been reinstated in the USCF [email protected] rec.games.chess.politics (Chess Politics) 88 September 4th 06 08:02 PM
Bobby Fischer has been reinstated in the USCF [email protected] rec.games.chess.misc (Chess General) 89 September 4th 06 08:02 PM


All times are GMT +1. The time now is 12:52 AM.

Powered by vBulletin® Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Copyright 2004-2019 ChessBanter.
The comments are property of their posters.
 

About Us

"It's about Chess"

 

Copyright © 2017