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Old August 27th 11, 11:09 PM posted to rec.games.chess.analysis
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Default QGD what is wrong with 3.c5?

Newsgroups: rec.games.chess.analysis
From: Philip Amant
Date: Sat, 18 Jun 2011 14:01:03 GMT
Local: Sat, Jun 18 2011 7:01 am
Subject: QGD what is wrong with 3.c5?
_
On Jun 18, 7:01 am, Philip Amant
wrote
7 1. d2-d4 d7-d5
7 2. c2-c4 c7-c6
7_
7 I was thinking about playing 3. c4-c5
7 but I can't find any references to this option.
7 Probably it's a bad move?
7 Can someone explain please?
7_
7 Thanks a lot,
7_
7 Philip.
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There is a new book about
1 d4 d5 2 c4 c6 (The Slav: Move by Move).
Although it does not (as far as I can tell)
specifically comment on the possibility
of 3 c5, it does have a general comment
that might be helpful:
_
"Black should welcome an unprovoked
c5. His d5-pawn is no longer under
pressure which means he can hit back
with ...e5 soon." - Cyrus Lakdawala
(page 11)
_
A long excerpt from the book (including
page 11) can be seen at:
_
http://shop.chesscafe.com/images/pro...89_excerpt.pdf
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Old October 30th 11, 07:27 PM posted to rec.games.chess.analysis
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Default QGD what is wrong with 3.c5?

There are several problems with 3.c4-c5 in the QGD in general. First,
it doesn't really block things; both ...b6 and ...e5 are possible (and
encouraged.), as has already been pointed out.

There are other problems. White forgoes the opportunity of a timely
c4:d5 to fix Black's Pawns. Whether this is good idea isn't known on
move 3. Mostly, d5:c4 is not advantageous for Black (even when gaining
a tempo), so c4-c5 isn't insuring against anything.

There are a few exceptions; mostly when Black has played Qb6 and does
not threaten ...e5 (or ...b6) quickly. Note than in the Semi-Slav, c4-
d5 by White (even gaining a tempo against Black's ...Bd6) is poor in
that Black just reteats the Bishop to c7 (or b8) and ...e5 is a bigger
threat. Even against the Dutch (or a Stonewall), the c5 push is
generallly bad.

Another execption would be if c5 could be immediately followed up with
b5 (and a4) to mount a Pawn storm.
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Old November 1st 11, 10:05 PM posted to rec.games.chess.analysis
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Default QGD what is wrong with 3.c5?

Thanks for the additional thoughts. Just
to try to get everything into one place,
here are some contributions that
somehow did not get into this particular
thread:
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From: MaxJ
Date: Jun 24, 12:43 pm
Subject: QGD what is wrong with 3.c5?
To: rec.games.chess.analysis
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In Queen gambit declined, a move like 3.c5 simply means White gives up
the control of the center to Black. Black smashes through center by
its b7 pawn.
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1. d4 d5 2. c4 c6 3. c5 Nf6 4. Nc3 b6 5. Nf3 bxc5 6. dxc5 Qa5 7. Qa4
Qxc5 *
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http://groups.google.com/group/rec.g...12f9d8d1a83704
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From: "Blkbull"
Date: Oct 25, 3:20 pm
Subject: Re QGD what is wrong with 3. c5?
To: rec.games.chess.analysis
_
My opinion on 3. c4-c5 is that:
_
a) Violates the GENERAL PRINCIPLE of moving the same piece (or pawn)
twice
instead of rapid development of your pieces.
_
b) One idea of the Queen's Gambit is for Black to play 2...d5xc4
(accepting
the gambit) so that White can get a slightly longer lead in
development and
space via 3. e2-e4 giving White the classic center. In most lines
White will
evenually win the pawn back.
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c) By playing 3. c4-c5 you allow Black to play 3...e7-e5 4. e2-e3
_
(if 4. d4xe5 Bf8xc5 5. Nc1-c3 Ng8-e7
( if 5 ...d5-d4 6. Nc3-e4 f7-f6 7. Ne4xc5 Qd8-a5+ 8. Qd1-d2 Qa5xc5 9.
e5xf6
Ng1xf6 and White maintains his slight advantage mainly due to Black's
weak
d4-pawn.)
6. Ng1-f3 0-0 and Black gains the 'first move' tempo that White
had.)
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....Nb8-d7 5. Nb1-c3 Bf8-e7 and Black gains the 'first move' tempo
that
White had.
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d) After White plays 3. c4-c5 Black can elect to develop his pieces
normally and keep the position closed (on the queenside) and expand on
the
kingside where he can contend with White on almost equal terms.
_
These things may not mean much to White at the club level and he may
be able
to contend, but a strong Black player can exploit 3. c4-c5 with
advantage.
_
--
Bull
_
http://groups.google.com/group/rec.g...c815d51151d950
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