Where did I go wrong?

Technical questions regarding Openings, Middlegames, Endings etc.
Roger de Coverly
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Re: Where did I go wrong?

Post by Roger de Coverly » Sat Apr 28, 2018 7:24 pm

soheil_hooshdaran wrote:
Sat Apr 28, 2018 6:51 pm
can this position be won by White if he is to move?
It looks sufficiently complicated that a White win should be possible, whether it's forced against best play is entirely another matter. I'd start with Ne5, but you would also attempt to analyse Kxe4 and Ng5+. Looking for moves that are a threat, check or capture brings up Nh8, but that could be met by .. Rg8.

soheil_hooshdaran
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Re: Where did I go wrong?

Post by soheil_hooshdaran » Wed Jun 13, 2018 8:47 pm

How could I play better in:

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IM Jack Rudd
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Re: Where did I go wrong?

Post by IM Jack Rudd » Wed Jun 13, 2018 9:04 pm

13...Bh6 looks horrible. What on earth is the point?

Roger de Coverly
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Re: Where did I go wrong?

Post by Roger de Coverly » Wed Jun 13, 2018 9:43 pm

IM Jack Rudd wrote:
Wed Jun 13, 2018 9:04 pm
13...Bh6 looks horrible. What on earth is the point?
Threat of Bxf4 perhaps, but it just provokes Nc4.

More generally, playing Modern Benoni positions passively, particularly against four pawn attack/Taimanov structures (d5,e4,f4) invariably ends up with Black getting blown away with e4-e5 as seen in the game. So it's not one individual move, the whole structure of Black's defence needs review.

[

I'm not convinced by .. b6 and .. Ra7. Challenging for the e5 square with .. Nbd7 and .. Re8 looks more normal. Spassky and others of his era would continue the attack for White after playing f4 with e5 anyway and meet .. d6xe5 with f5, freeing the e4 square for a Knight.

soheil_hooshdaran
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Re: Where did I go wrong?

Post by soheil_hooshdaran » Wed Jun 13, 2018 10:22 pm

IM Jack Rudd wrote:
Wed Jun 13, 2018 9:04 pm
13...Bh6 looks horrible. What on earth is the point?
I guess I wanted to prevent f4-f5, by exchanging the dark-squared Bishops in case of f5.

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IM Jack Rudd
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Re: Where did I go wrong?

Post by IM Jack Rudd » Wed Jun 13, 2018 10:30 pm

soheil_hooshdaran wrote:
Wed Jun 13, 2018 10:22 pm
IM Jack Rudd wrote:
Wed Jun 13, 2018 9:04 pm
13...Bh6 looks horrible. What on earth is the point?
I guess I wanted to prevent f4-f5, by exchanging the dark-squared Bishops in case of f5.
You really need to learn something about Benoni structures if you're going to play them. White's thematic advance is usually e5, not f5, and the g7 bishop is the one minor piece you really don't want to exchange off.

soheil_hooshdaran
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Re: Where did I go wrong?

Post by soheil_hooshdaran » Wed Jun 13, 2018 10:36 pm

IM Jack Rudd wrote:
Wed Jun 13, 2018 10:30 pm
soheil_hooshdaran wrote:
Wed Jun 13, 2018 10:22 pm
IM Jack Rudd wrote:
Wed Jun 13, 2018 9:04 pm
13...Bh6 looks horrible. What on earth is the point?
I guess I wanted to prevent f4-f5, by exchanging the dark-squared Bishops in case of f5.
You really need to learn something about Benoni structures if you're going to play them. White's thematic advance is usually e5, not f5, and the g7 bishop is the one minor piece you really don't want to exchange off.
How to learn about it?
I know you are a benoni specialist

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IM Jack Rudd
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Re: Where did I go wrong?

Post by IM Jack Rudd » Wed Jun 13, 2018 11:43 pm

Most of what I know about the Benoni I learned from John Nunn's book. It's a bit out of date now, but most of the strategic advice still holds.

soheil_hooshdaran
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Re: Where did I go wrong?

Post by soheil_hooshdaran » Thu Jun 14, 2018 5:28 am

Doctor John Nunn have been a guiding light to generations of chess players!

soheil_hooshdaran
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Re: Where did I go wrong?

Post by soheil_hooshdaran » Fri Mar 15, 2019 8:08 pm

How could I improve on:

?
Last edited by soheil_hooshdaran on Sat Mar 16, 2019 7:05 am, edited 1 time in total.

Roger de Coverly
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Re: Where did I go wrong?

Post by Roger de Coverly » Fri Mar 15, 2019 8:17 pm

soheil_hooshdaran wrote:
Fri Mar 15, 2019 8:08 pm
How could I improve on:
I would have thought running the game through an engine to find out where the tactics went wrong would be necessary. Either that or analyse the tactics the old fashioned way.

Tim Harding
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Re: Where did I go wrong?

Post by Tim Harding » Fri Mar 15, 2019 11:25 pm

Old-fashioned way:
Alizadeh's move 7 f4 is premature according to notes to Game 55 in Fischer's " My Sixty Memorable Games" saying Black can choose between 7...b5, 7...d5 and your 7...Nxe4. Fischer himself used to play 7 Bb3 to rule out all those replies.

The engine way:
Stockfish10 prefers Black after 7...b5 and thinks 7...d5 is OK.
Its third choice is the solid 7...Be7 which will probably transpose to a Sozin after 7 Bb3 Nc6

It does not like 7...Nxe4 8 Nxe4 d5 because of the very sharp 9 f5! and if 9...exf5 10 Bg5. Where is Black's development??
After 9 Bd3 de 10 Bxe4 e5 (not best, again too sharp) it likes White with 11 Nf3 and even with 11 Nb3.
Tim Harding
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Author of 'British Chess Literature to 1914', Joseph Henry Blackburne: A Chess Biography', and 'Eminent Victorian Chess Players'
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soheil_hooshdaran
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Re: Where did I go wrong?

Post by soheil_hooshdaran » Thu Mar 21, 2019 7:16 am

Thanks.

John McKenna
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Re: Where did I go wrong?

Post by John McKenna » Fri Mar 22, 2019 1:24 am

The move 12.Ne5-f3?! was a needless retreat that lost a tempo and the theoretical thread - instead the move to stay on topic was 12.f4!

15... Bc7!? - seems to be a bland novelty (instead, in Garcia Domingo-Campos Aujeco,2009 Valencia, 15... Qb6 discouraged W from Q-side castling and so it continued 16.b3 O-O-O... 1/2 in 32 moves.)

17... Qe4!? (instead 17... O-O with chances for both players!)

22.Rg1!? - going off at a tangent - instead 22.Ne5 is back on track.

24... Rg8!? - also tangential - 24... a6 may be better.

34... Bg5!? (instead 34... Rxc3 35.Rxc3 Bxc3 36.Kxc3 Nf6 is better for W but B can probably hang on for a draw.)

35.Ra1?? (instead W could gain the advantage with 35.Nb4! Or, 35.Rcc2 was safe.)

35... Rxc6! 36.bxc6 Rxc3 37.Kxc3 Bf6 38.Kb4 Bxa1 and B was clearly winning, but after 39.Kb5, Bd4?? is a losing blunder that looks like it might have been played in time trouble?
To find a for(u)m that accommodates the mess, that is the task of the artist now. (Samuel Beckett)

soheil_hooshdaran
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Re: Where did I go wrong?

Post by soheil_hooshdaran » Fri Mar 22, 2019 8:20 pm

Thanks

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