STOP - answers begins below.

Black just played 1...b7-b6.

My student wanted to activate his Bc8, but as the result, the Nc6 was temporarily left unprotected. White (who was higher-rated by some 600+ points) responded with explosive 2.d5 immediately exploiting the opportunity by creating a threat of double attack (Qc3+). Black is worse, but not losing yet (2...Ne5 or even 2...exd5 2.Qc3+ f6). However, probably shocked by White's move, Black panicked and quickly collapsed.

White just played 1.b2-b4.

Now playing with White, my student was attempting to execute a standard plan in English – advancing pawns on the Q-side. However, after 1.b4, the Nc3 is hanging and Black had a discovery attack - 1…e4 winning the Nc3 and leaving White with insufficient compensation (2 pawns). White did put some fight, but soon resigned.

White just played 1.b2-b3.

Finally, in this example – playing Black, my student continued with normal development (1...Nbd7?) instead of seizing the opportunity that White presented with his last move. After 1…Nxd5 Black wins a pawn and then some more.

Summary

So, by now you probably guessed what was the subject of conversation with my student – advancing the b-pawn: Benefits vs. Danger.

 

There are many opening variations where you would want to have your bishop developed on the long diagonal.  This is especially true when there is a pawn on e3(e6).  Some examples are Caro-Kann, Queens Gambit for Black, the Benko Gambit, and some lines in the Sicilian for White. 

 

Even though your Bishop might look much better on the long diagonal, you always must keep in mind that the b-pawn has certain responsibilities and advancing it may give some tactical possibilities to your opponent.

 

The b-pawn has the following responsibilities

–        covers a6(a3) and c6(c3) and any piece or pawn that is placed there;

–        covers the long diagonal – square a8(a1) as well as the R which is commonly there;

–        covers c8(c1) from attack from a6(a1).

 

Here is a list of some more common tactical possibilities (motifs) after the b-pawn advances:

 

Target	What to examine
Nc3(c6)	double attack, pin, discovered attack
Ra1(a8)	double attack, discovered attack, skewer, trap
Square c3(c6)	a great outpost for the N, B or, when fighting for the c-file, for the R
Square a3(a6)	when there is a fight for the open c-file, one could place a B there to drive the opponent’s rook from c8(c1).

 

The above list is somewhat general.  When working on your opening preparation, make sure you familiarize yourself with specific ideas that are more likely to happen in your games.

 

Finally, remember that you need to practice for both sides, since you as easily can be planning b3/b4 (b6/b5) as considering what to do against it when your opponent plays it.

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