27 votes

Why is 1. d4 2. c4 3. b3 so bad for white?

Stockfish evaluation is not the only criterion to determine whether a move is sound or not. The main issue with committing so early to 3.b3 (against this particular Black setup) is that there are no ...
David's user avatar
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24 votes
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If 1. e4 c6 is considered as a sound defense for black, why is 1. c3 so rare?

"Reversed" Openings in general A black defense and its white mirror counterpart will often play out quite differently (compare the rather sharp Sicilian Defense and the rather quiet English Opening). ...
Annatar's user avatar
  • 5,918
18 votes

Why is 1. d4 2. c4 3. b3 so bad for white?

There are 3 main reasons for this move to be inaccurate. It doesn't place any pressure on black's position. It weakens c3, allowing black to "force" your knight to the more passive square ...
Mike Jones's user avatar
  • 5,169
16 votes
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Semi-Slav name origin

It simply because With Black advancing pawns to both e6 and c6, the opening resembles a mixture of the Orthodox Queen's Gambit Declined (QGD) and the Slav Defense. (from wikipedia) If you consider ...
Especially Lime's user avatar
15 votes

Why is Leela so good at beating Stockfish in the French/Slav?

Well, it is a small sample, but assuming that there are a lot more games like these, I think it could be the following things. First, I am not sure when we first humans first decided that space was ...
PhishMaster's user avatar
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13 votes
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How do I respond to 8. g3?! in the 4. e3 Slav?

I see no reason to ?! mark. 8. g3 is good book move and standard way to limit opponent's play with open h-file. The most flexible move by far is 8...Nbd7 after it. After 9.Bg2 dxc4 should be good. But ...
hoacin's user avatar
  • 3,286
11 votes

Why is Leela so good at beating Stockfish in the French/Slav?

Generally speaking, Leela tends to have a better "intuition" and Stockfish is very good at brute force calculations. So in a structure like the French/Caro-Kann, where calculation becomes less ...
Inertial Ignorance's user avatar
11 votes

Why is Leela so good at beating Stockfish in the French/Slav?

Because of the enormous skill difference between these computers and humans, any kind of analysis will inevitably be post-hoc. We can tell ourselves stories about how "Stockfish should have [insert ...
Noah Caplinger's user avatar
11 votes

Why is 1. d4 2. c4 3. b3 so bad for white?

One should be very careful with the win percentage parameter. Probably here b3 was mostly played by lower-rated players trying to avoid theoretical lines and confuse the higher-rated opponent. Another ...
sleepy's user avatar
  • 1,326
10 votes
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Can black play the London system?

That is the Slav, but the problem for black in many of these lines, and specifically immediately, is that if 3...Bf5, then 4.cd cd 5.Qb3 forces you to sacrifice d5 or b7 since 5...b6 just loses. ...
PhishMaster's user avatar
  • 32.5k
9 votes

If 1. e4 c6 is considered as a sound defense for black, why is 1. c3 so rare?

1. c3 (and 1. d3 and 1. e3, which can lead to reversed Pircs, French defense or QGD) aren't bad in that they give White a worse position. So those moves might have some merit as a surprise weapon (if ...
Glorfindel's user avatar
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9 votes
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What is the rationale behind Black playing e6 in so many openings?

In the French Defense, the modest pawn advance in e6 simply plans to challenge the e4-pawn by d5, without having to recapture with the Queen after a possible capture in d5. The idea is thus similar to ...
Kortchnoi's user avatar
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8 votes
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Positional chess understanding in the early game

The main point of the engine recommending exd5 is because it opens up the diagonal from c8 to h3. By playing an early e6, the bad light squared bishop is really weak and has terrible scope, which is ...
dinosauce33's user avatar
7 votes
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Is the queens gambit declined getting more popular than the slav?

It seems to be that the QGD is regaining some popularity at the top level due to theory advancing. I don't think that says anything about the overall popularity of the two openings though (i.e., ...
Inertial Ignorance's user avatar
7 votes

What does black achieve with 1.d4 c6?

You're right that players who choose 1...c6 must be fine with the Caro-Kann, which is one reason why it's not that popular. However, there are some people who are fine with the Caro-Kann, and so the ...
Inertial Ignorance's user avatar
6 votes

Can black play the London system?

The London Defensive System is actually a named line in the RĂ©ti Opening. And yes, it is very playable. You don't see this very often nowadays, because White will try to stop Black from playing it. ...
fuxia's user avatar
  • 1,310
6 votes

What does black achieve with 1.d4 c6?

I would add one little thing to Inertial Ignorance's answer: The reason it is so unpopular is probably that the Caro seems more passive than the Slav, and I say this as a long-time Caro player. E4 ...
PhishMaster's user avatar
  • 32.5k
6 votes
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Achieving Catalan-like structure against Slav response

Are there strong responses different from 4. .. e6 for black against 4. g3 that avoid the Catalan? 4...Bf5 One interesting alternative is 4...Bf5, with very original play. Before playing e6, Black ...
Kortchnoi's user avatar
  • 3,515
6 votes

Positional chess understanding in the early game

The "e" columns being open is not an issue for king safety. Your king is only there temporarely. After ...exd5, Black would probably follow with ...Bd6 and ...0-0, then at some point ...Re8 ...
David's user avatar
  • 16.3k
6 votes
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slav defence: 3. nc3?

3.Nc3 is very decent move. It has been less often used than 3.Nf3 when White is aiming for the main lines of the Slav defense because it gives Black two more options: The Winawer gambit, 3.Nc3 e5!? 4....
Evargalo's user avatar
  • 16k
5 votes

Can black play the London system?

I tried this about 15 years ago and after 4. cd cd 5. Qb3 I was soon in a world of pain. I've never tried it since. [fen ""] 1. d4 d5 2. c4 c6 3. Nf3 Bf5 4. cxd5 cxd5 5. Qb3 There is no good way to ...
Brian Towers's user avatar
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5 votes
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Exchanged Slav defense. Gambit the c6 pawn. Why not?

If you want to play this gambit, the best way to get there is by playing 2...Nf6!? 3.cxd5 c6!. White is almost certain to play 3.cxd5 which is both the natural move and the theoretical refutation of ...
bof's user avatar
  • 3,782
5 votes

Exchanged Slav defense. Gambit the c6 pawn. Why not?

In the chessok opening tree there are 28 games with this gambit. Going by the computer evaluation it seems to be playable, but the score is atrocious (>80% for white). So here you have a gambit that ...
BlindKungFuMaster's user avatar
5 votes
Accepted

Slav - Theory Heavy Book

http://www.amazon.com/Grandmaster-Repertoire-17-Classical-Slav/dp/1907982388 Grandmaster Repertoire 17 by Avrukh is probably what you're looking for. It is extremely dense and detailed. It will ...
E4Bandit's user avatar
  • 436
5 votes
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Could I have improved my position in this pawn up exchange Slav?

Your play was good, and you managed to slowly gain the upper hand from the more or less dead equal opening. At the end Rxe3 is forced, but after Qd2 I would have definitely considered Re4. You ...
Inertial Ignorance's user avatar
5 votes
Accepted

What does black achieve with 1.d4 c6?

Of course you must be ready to play the Caro-Kann if you answer 1. d4 with 1. ... c6. But that is a sound opening - so why not, if you already play it against 1. e4? You will probably be better ...
jschenk's user avatar
  • 164
5 votes
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Why is ...a6 played in the Exchange Slav?

It prevents Nb5-c7. That's the main point behind the move. Just take a look at the disaster a careless move like 6...g6? could lead to. 6...a6 is not the only option, though. Black can try for ...
David's user avatar
  • 16.3k
5 votes
Accepted

Transpose to the Slav as Black after 1. ...Nf6?

1.d4 Nf6 2.c4 c6 followed by 3...d5 is a reasonnable and legitimate move order to enter the Slav defense. I have used it regularly at Fide master level. As with every move order transposition, it has ...
Evargalo's user avatar
  • 16k
5 votes
Accepted

Bf5 in the Slav

Here White has chosen a slow, Catalan-like development, and is less capable of exploiting the weakness of b7. Every move order has its own flavour but the weakness of b7 (and of the Black queenside ...
Evargalo's user avatar
  • 16k
4 votes

What are the main plans for black and white in the main-line Slav after 5...Bf5 6.e3?

Fight for the center The variation with 9.Nh4 has its own flawor. For the other main lines, the logical plans flow from the strategic evaluation of each side's plusses and minuses: White enjoys the ...
Evargalo's user avatar
  • 16k

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