Chess Edinburgh lewischessmen2-75h 

Chandler Cornered

Weak Squares + Slack Alice + and a Dalek

So there is me, Keith Ruxton and Bertie Burns
looking at a chess position in Sandy Bells.

Keith states that if this pawn moves "it weakens the white squares."

I nod knowingly,(because I know these things), but Bertie interrupts.

"Ah yes," he says,
"what is all this weak white square, weak black square
stuff I have heard about, it sounds nonsense to me?"

Keith pointed out that the moment the pawn is pushed
the previous squares it protected are now unprotected, weak.

Bertie looked non-plussed. (Bertie always looks non-plussed).
The position in question (I cannot recall it), offered no
quick demonstration to show how the weak squares could be
exploited. It was one of those positions where you could just
see that in 10-12 moves time this pawn move would be a lemon.

Time passed.

Keith fell asleep face down in an ashtray. Yes an ashtray.
For even though the smoking ban has been in effect for a couple of weeks,
Charlie still puts the ashtrays out. (ah bless him).

So I said to Bertie I would showed him the concept
of weak and strong squares and started to set up the pieces.

Just then Slack Alice came in and started talking to Bertie.
Well the opportunity was gone. Slack Alice has not interest
in weak squares, Bertie was only interested in Slack Alice.

Time passed.

Days later I received an email from Paul '10 pm.' Roberts.
Paul was playing in Germany and sent me the following game.
The instructive point is how to exploit weak squares.

P. Roberts (2200) - G.Jerosch (2084) Deizisau 2006.

This position arose with Black to play.

Black can see that if he plays the natural 15...Bg7
then 16 Rad1 and 17 Nd6. Now Black did not like the idea
of the Knight appearing on d6. However the cure was
worse than the disease. Black played 15...Bc7

Now we see the weak squares h6 and f6. They are like beacons,
guiding lights for the white pieces. "Come and land on here."

Play continued: 16.Rad1 Bd7 17.Bh4 Re8 18.Qd2 1-0.

Note white is hitting the Bishop on d7 but is really threatening
Qh6, Bf6 and mate on g7. The only way for Black to prevent
this is to give up a bucket load of material.
Black resigned.

Here is the complete game. The move 4 Be2 is a cute move.
Usually in this line (The Grand Prix Attack) the Bishop
goes to B5 or c4. On b5 it exchanges itself for the c6 Knight
thus bolstering the black centre. Or goes to c4 where it is
unprotected and Black gains some tempo knocking it about.
4 Be2 though tame, succeeded in lowering Black's guard.

[Click here to replay the game]
P.Roberts - G.Jerosch

1.f4 c5 2.Nf3 Nc6 3.e4 d6 4.Be2 g6 5.0-0 Bg7 6.d3 e6 7.c3 Nge7 8.Be3 0-0 9.Nbd2 b6 10.Qc2 d5 11.Bf2 dxe4 12.dxe4 e5 13.fxe5 Nxe5 14.Nxe5 Bxe5 15.Nc4 Bc7 16.Rad1 Bd7 17.Bh4 Re8 18.Qd2

Finally here is a Dalek I doodled whilst at work... Good in it?

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