Hi you swaps. Today I'm talking about PINS.
"The Pin is Mightier than the Sword." Fred Reinfeld.
The pin is where you attack a piece and it may not move because
it exposes a more powerful piece allowing it to be taken.
Example Pins. The Knight cannot move else the Black Queen would be captured.
And here the Rook cannot move as again it would result in the capture of the Black Queen.
You will see that the Pin is the reverse of the Skewer
which was discussed on a former Corner. The main difference being;
A PIN is not an active tactic like a Skewer (or a Fork).
Look at this diagram to see the main difference.
The a1 Rook is Skewering the Bishop. The g4 Bishop is Pinning the Knight.
The SKEWER is the more active tactic.
The Black Queen is being attacked. Black must do something
on the next move else the Black Queen will be captured.
However, immediate action is not required with the PIN.
White, at the moment, can ignore the Pin. He is not forced
to do anything about it. (yet!).
Usually the Pin without follow up action can be a harmless ploy.
"Pin it and Win it." is the plan when you have pinned a piece.
You have to put pressure on the Pinned piece to win it.
The exception being when you pin an unprotected piece and your
opponent has no way of protecting it.
Look at this simple example.
White wins the Bishop by means of a pin with 1.Ra3.
Forks, Skewers, Pins and Pin Breaking. See them in all in action from one diagram.
It is Black to play, White has just played 1.Bb4 pinning the Knight to the Rook.
Black can break the pin and defend the Knight with 1...Rd8 or 1...Rf6.
Or Black can hold the balance with tactics.
1...Rf1 and if 2.Bxd6 then 2...Rd8+ Skewering the Bishop.
or 1...Rf7 2.Bxd6 Rd7 Pinning and winning the Bishop.
or 1...Rf5 2.Bxd6 Rd5+ Forking the King and Bishop.
Master all the tricks involving these three tactics and you
will be well on the way to becoming a very good chess player.
Pins on Kings the make the best Pins.
I never tire of showing the final position from this game of mine.
G.Chandler - Richard Kynoch, Edinburgh Club Championship, 1981.
Three pieces can capture the piece giving the mate
but all three pieces are pinned to the King.
(A World record for OTB play according to the BCM).
And the danger of missing a winning pin. C.Schlecter - A.Rubinstein, Berlin 1918.
Black to play and win. You have 10 seconds...
Yes it is very easy to see in a discussion about Pins.
Pin the Queen (30...Be3) and mate on c2. incredibly Black missed it and drew the game.
How did such great players as Schlecter and Rubinstein miss this?
That type of tactic is quite rare.
It's unlike any Pin you normally see because the pinning piece
can simply be taken by the piece it is trying to pin.
Look at the next diagram.
The d5 Bishop is not really pinning the b7 Bishop as Black can play 1...Bxd5
and the same for the g1 Rook. The g6 Rook is not pinned. 1...Rxg1.
You can bet your teeth that if it had been a Rook on d2 then Schlecter
would have played Be3 and Rubinstein would never have allowed it.
It's not really a Pin is it. It's a tactic to remove the guard on c2.
And the fact that both players missed it vouches for it's rarity in chess.
The pin, as I explained before is not usually an active tactic.
It turns a chess piece into a lump of dead wood but unless you
can bring more weight onto it, one can live with it and break
the pin when the time is right.
So having explained that the PIN is not an active tactic
let us look at some games where the PIN plays it's part.
Tactics and team work is the key. A.Gibaud - E.Sergeant, Hastings 1919.
Here we see the Pin building an OUTPOST
and the OUTPOST producing a winning PIN.
Black has just played 9...Nd4.
The Pinned Knight on f3 is being squeezed so White breaks by the pin
by moving the Queen. Black captures on f3 forcing the g-pawn onto f3
thus weakening the square f4.
A weak square is an important square that is protected by a pawn and
cannot be attacked by an enemy pawn. (f4 as in the diagram).
These squares, as you will see in the game, make great outposts for Knights.
Ideally, though not mandatory, the square should be protected from a frontal
attack by having an enemy pawn infront of it. (as in the diagram).
This stops opponents from chopping the Knight with a Rook becuase such
Knights on strong outposts are often better than Rooks.
After the exchange on f3, Black's strategy is to sink a Knight on f4.
White tries to stop this with 12.Nd5 so Black gets rid of the d5 Knight
before occupying f4. Once on f4 the Knight throws White into a wobbly.
The game ends with a nasty Pin on the back rank.
[Click here to replay the game]
A.Gibaud - E.Sergeant
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.Qe2 b5 6.Bb3 Bc5 7.Nc3 d6 8.a4 Bg4 9.axb5 Nd4 10.Qd3 Bxf3 11.gxf3 Nh5 12.Nd5 0-0 13.Bc4 axb5 14.Rxa8 Qxa8 15.Bxb5 c6 16.b4 cxd5 17.bxc5 Nf4 18.Qf1 Rb8 19.Bd3 Rb1
Here is an instructive game involving a PIN.
An interesting effort with both players poking and pushing for an advantage.
White sees the chance to place the f6 Knight in an everlasting pin.
36.Qxc7 Rxc7 37.Bd6 Rc4 38.Be5
Now that is what you called a pinned piece.
How does Black get out of that one?
The Pinned piece becomes the focal point for the whole game.
White's sole strategy is to win the Pinned Knight.
Black's sees the threat but his efforts to null it are fruitless.
P.Royset - P.Fossan, Norwegian Ch. 1997.
[Click here to replay the game]
P.Royset - P.Fossan
1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nf6 5.Nf3 e6 6.Bd3 Be7 7.0-0 cxd4 8.cxd4 0-0 9.Nc3 Qd6 10.Nb5 Qd8 11.Bf4 Nd5 12.Bg3 a6 13.Nc3 Nc6 14.Rc1 Bf6 15.Be4 Nce7 16.Qb3 b5 17.Rfd1 Ra7 18.Bb1 Nxc3 19.Qxc3 Bb7 20.Qc5 Qa8 21.Ne1 Nd5 22.Qc2 g6 23.Bd6 Rd8 24.Bc5 Bg5 25.Nf3 Bxc1 26.Qxc1 Nf6 27.Ne5 Bd5 28.Qg5 Kg7 29.Ng4 Nxg4 30.Bxa7 Nf6 31.Bc5 Rd7 32.f3 Qd8 33.Qe5 Bb7 34.Be4 Bd5 35.a3 Qc7 36.Qxc7 Rxc7 37.Bd6 Rc4 38.Be5 h6 39.h4 Rc6 40.g4 g5 41.hxg5 hxg5 42.Rf1 Rc8 43.Kg2 Rh8 44.Bxd5 exd5 45.f4 Rh4 46.fxg5 Rxg4+ 47.Kh3
Finally a game that shows you a whole multitude of tactical ideas.
Not a famous game or one of those that you see re-produced everywhere.
(I've not seen it before). Just a bog standard game of chess where
a player uses all the tactical tools and ideas that the positions demanded.
The more ideas in your locker and the more you see them, then
the better the chance you have you of producing them in your own games.
Pins, Breaking Pins, An exchange winning skewer, (if Black avoids the skewer
he walks into a pawn fork), saccing back the material gained to remove a Knight
from a strong outpost and an alert reaction to a weak back rank culminating
in a Queen sacrifice.
L.Palau - J.Bolbochan, Buenos Aires 1935.
[Click here to replay the game]
1.d4 Nf6 2.Nf3 e6 3.c4 d5 4.Bg5 Nbd7 5.e3 c6 6.Nbd2 Be7 7.Bd3 0-0 8.0-0 Re8 9.Qc2 h6 10.Bh4 c5 11.Bxf6 Nxf6 12.dxc5 Bxc5 13.cxd5 Qxd5 14.e4 Qc6 15.Rac1 Bb6 16.Qb3 Qd7 17.Bb5 Qe7 18.Bxe8 Qxe8 19.e5 Nd5 20.Nc4 Bd7 21.Nxb6 axb6 22.Nd4 Ra4 23.Rfd1 Qb8 24.Nf3 Qa7 25.a3 Rg4 26.Rd4 Rg6 27.h4 h5 28.Ng5 b5 29.Rxd5 exd5 30.Qxd5 Rxg5 31.hxg5 Bc6 32.g6 Be8 33.Qxf7+ Bxf7 34.Rc8+ Be8 35.Rxe8
Right you lilly livered dogs, get out there and hack them to pieces.