Chess Lesson #20

Bowmann

Non-Subscriber

Only Chess

01 Dec 05

Bowmann

Non-Subscriber

RHP IQ

Joined: 17 Mar 05
Moves: 1345

01 Dec 05

White has just played the natural developing move, 9...Bd3?

How can Black exploit this oversight?

Marinkatomb

wotagr8game

tbc

Joined: 18 Feb 04
Moves: 61941

01 Dec 05

2 edits

Originally posted by Bowmann
[fen]r1b1k2r/pp3ppp/4pn2/q1pp4/1bPP4/1QNBPN2/PP3PPP/R3K2R[/fen]

White has just played the natural developing move, 9...Bd3?

How can Black exploit this oversight?

..dxc4
Bxc4 ..b5
Bxb5? Qxb5

Or....

..dxc4
Bxc4 ..b5
B(any..) Nd5 winning material 😀

EDIT: Actually, black could also start a pawn storm on the Queenside...

..dxc4
Bxc4 ..b5
Be2 (or else ..c4) ..c4
Qc2 ..Nd5 etc..

XanthosNZ

Cancerous Bus Crash

p^2.sin(phi)

Joined: 06 Sep 04
Moves: 25076

01 Dec 05

Originally posted by marinakatomb
..dxc4
Bxc4 ..b5
Bxb5? Qxb5

Or....

..dxc4
Bxc4 ..b5
B(any..) Nd5 winning material 😀

EDIT: Actually, black could also start a pawn storm on the Queenside...

..dxc4
Bxc4 ..b5
Be2 (or else ..c4) ..c4
Qc2 ..Nd5 etc..

No need to mess about.

1. ... b5!

This threatens both bxc4 and dxc4 winning the bishop to the fork. If cxb(d)5 then c4 and the fork.

Marinkatomb

wotagr8game

tbc

Joined: 18 Feb 04
Moves: 61941

01 Dec 05

Originally posted by XanthosNZ
No need to mess about.

1. ... b5!

This threatens both bxc4 and dxc4 winning the bishop to the fork. If cxb(d)5 then c4 and the fork.

Ah yes, of course!! Nice 😀

Bowmann

Non-Subscriber

RHP IQ

Joined: 17 Mar 05
Moves: 1345

04 Dec 05

2 edits

Black replies with 9...b5!

10. cxb5 c4, winning a piece.

This is an effective blend of pin and fork that comes up quite often.

[Correction: 9...Bd3? in my first post should of course read 9. Bd3?]

stevetodd

Joined: 26 Nov 03
Moves: 11918

05 Dec 05

3 edits

Originally posted by XanthosNZ
No need to mess about.

1. ... b5!

This threatens both bxc4 and dxc4 winning the bishop to the fork. If cxb(d)5 then c4 and the fork.

Amazingly (well maybe not as eventually I suppose you will find yourself in these positions) but 2 days ago on gameknot I was black in this very position! I actually missed b5 but did play pxp. I did a double take when I saw Bowmans position as I recognized it immediately.

Edit: Actually it is slighly different as he has a bishop on g5 and I have a knight on d2, but they do not effect the validity of the said moves. The game is in progress so obviously I cannot discuss it (and do not seek advice). Maybe I should not have mentioned it but was so astounded to see my position (well almost).

Bowmann

Non-Subscriber

RHP IQ

Joined: 17 Mar 05
Moves: 1345

05 Dec 05

Originally posted by stevetodd
Maybe I should not have mentioned it but was so astounded to see my position (well almost).

Glad you did. This is exactly the point of my examples. These aren't so much compositions, or puzzles, as illustrations of more typical board patterns and situations that players will encounter. They are, however, aimed at "weaker" players.

Good luck in the game.

Oddjob291

Joined: 08 Aug 05
Moves: 509

05 Dec 05

How did the opening move sequence go leading up to this position ? This could even be more beneficial to weaker players to see where exactly they went oops

gaurav2711

walking...

...back

Joined: 21 Aug 05
Moves: 27002

05 Dec 05

1 edit

Originally posted by XanthosNZ
No need to mess about.

1. ... b5!

This threatens both bxc4 and dxc4 winning the bishop to the fork. If cxb(d)5 then c4 and the fork.

good one!!

Weadley

NONE

WORK

Joined: 07 Jan 05
Moves: 38272

05 Dec 05

1 edit

If black plays b5 doesnt the bishop just move back (and waste a move)?
And loses a pawn only?

BigDogg

Secret RHP coder

on the payroll

Joined: 26 Nov 04
Moves: 155080

05 Dec 05

Originally posted by Weadley
If black plays b5 doesnt the bishop just move back (and waste a move)?
And loses a pawn only?

Losing a pawn for nothing equals a failed opening effort and probably a lost game.

Bowmann

Non-Subscriber

RHP IQ

Joined: 17 Mar 05
Moves: 1345

05 Dec 05

Originally posted by Oddjob291
How did the opening move sequence go leading up to this position ?

I don't have the moves. But the game was played in London 1937, between Golombek and Wheatcroft.

Weadley

NONE

WORK

Joined: 07 Jan 05
Moves: 38272

05 Dec 05

Bowmann,, bid dog,,,
So... white doesnt "have" to lose a bishop correct...
Just a pawn?

Weadley

NONE

WORK

Joined: 07 Jan 05
Moves: 38272

07 Dec 05

Im still curios.

XanthosNZ

Cancerous Bus Crash

p^2.sin(phi)

Joined: 06 Sep 04
Moves: 25076

07 Dec 05

1 edit

Originally posted by Weadley
Bowmann,, bid dog,,,
So... white doesnt "have" to lose a bishop correct...
Just a pawn?

This was answered. Yes, white goes down a single pawn with no compensation (actually negative compensation). Black has a large advantage and should win the game unless he blunders.