Hi there.
In this lecture, we see two feed masters battle out Bruce Harper against Robert Zook in 1971.
This is the Halloween open tournament.
So we see the fall from Bruce Harper.
Robert Zook plays nine of six.
We get a Kings engine defense.
Let's actually go past the opening phase.
So it's a typical King's engine defense position Classical Kings engine variation.
So noise H five, C one, C five.
So Black is closing up the queenside before proceeding on the kingside.
That's a useful strategy to bear in mind sometimes.
Geoffrey might have six.
So this knight goes back rather than playing F5 because this could be a targeted liability on H5.
So we see Knight have sex A4 9891 and now F5 8/10.
Knight takes F5, Bishop F3 Be6 Bishop G2, Knight D4 f4 Bishop at five F takes E5.
Bishop takes E5.
Bishop h6.
Bishop G7.
So Bishop 67 nine 6793.
Okay, so here where it move 21 we're into the middle game.
If F3 had been played there is an annoying ping.
Pen Bishop G4 Queen D3 Black could just take on a free to leave that very strong good looking knight
on D4.
Black has a small edge here, but okay.
Knight defray.
We have Queen G5.
This does permit Queen G5 my A4 Rook ain't Queen A4.
This is an excursion from win material, it seems.
Queen A7 Protecting A7.
Knight B5.
If one does play Rook F1 Black could actually just take that and two rooks for the Queen with Rooks
one.
Black overall was better in this particular position.
The knight on D4 is very strong.
There's good coordination of the pieces coming up, so that's not to be entertained.
So we have Knight B5, Knight takes me five, Queen Slingsby five Queen E Forecheck 1g5 Knight Free
Bishop RD Free pair of books Come off.
Brooke, She won.
So it looks as though.
Hold on.
Isn't my gang kind of passive here?
That's the case.
If Rook one Bishop e4 is quite a nasty pen, and it looks actually quite a terminal pen here.
So, for example, Queen D7 Black could take on G2, King Tanky two, Queen E, four Jack, Queen D,
Jack and Queen.
Thanks B to is giving Black a fantastic game.
So this position is very dangerous for white indeed if for example nine six G5 nudging the knight and
then we're going in this this key check which gets a very nasty pen and then rook F1 is checkmate.
So, yeah, there are some dangers here.
So why kind of went close to the king with Rook?
G1.
But then we do have this nasty pen here Bishop e4.
So pin and win is an expression.
So do we always need to checkmate When we have these pens?
We have absolute pens to the king sometimes as part of attacking chess.
And no, actually, you don't always need to checkmate.
It creates immobility in the opponent's position, kind of paralysis, almost as if the opponent's going
to run out of moves potentially, if you pin enough things.
So here.
Yeah.
In this situation.
Bishop takes G2 check is played.
And you might think, well, that's a relief for whites.
Now, if the king takes we're either playing queen, a free checkmate or queen E4 is checkmate.
So the rook takes, but we all get to a new pin now Queen E4 and it is associated with a concrete France
of rook one.
There's no G one, though.
So White plays nine g1 straight off the bat and no H six white now plays H four.
It should be noted here with H for that White is actually threatening to unpin the G2.
Rook White's given a resource King H two.
With this vacating move of H two.
So that's why it's important not to rest on their laurels here.
So for example, if G4.
Just to try and cut off the queen.
The thing is, King H to underpins the rook and we could get a small edge here, but we've just let
White's position become lively.
We've only got a small edge.
So it's very important here to recognise this square vocation creates resources through square vacating.
And what is that resource?
It's lumpen resource, so it needs to be shot down.
So Rook have to is played.
Stopping The immediate king aims to cause the Queen 62 meets the queen comes back and then taking out
the H two square so white cannot unpin.
So yes, if you're going to play this particular perk of attacking chess to immobilize pieces, the
frets you're looking out for.
On pinning frets.
If you can stop the opponent on pinning.
Then you create a true masterpiece like this and they are locking everything up with age five.
Do we even need my hair?
That's the question.
Once peace is.
Ah, absolutely.
You know, it's terrible looking here.
And we see the move.
Before.
Och and now Rook have won.
So we've actually got two absolute pins to the king.
And this is one of the, in fact, one of the beautiful benefits of attacking chess.
If you can expose the opponent's king, you do sometimes get these absolute pins which can be complete
torture in their own right.
And what is without any decent moves here, Wayne's been run out of moves.
There is one legal move available, of course, Queen free, but won't place for the moment.
Be five.
And now guess what Black does.
Plank just just plays a waiting move.
What is White doing?
We don't need checkmate.
We've got these absolute pins which are kind of winning in their own right because y is without any
moves.
Y it plays a four king h7a5, and now just King G eight.
And now White resigned if eight tanks, B six, eight, B six.
Unfortunately for why it's not a stalemate.
Okay.
This is one of the funny games.
You know, it's not famous players or anything, but it is kind of a memorable game because of this
position.
You know, it's good that, you know, lesser known players can create absolutely memorable games,
but the absolute pin's here.
Yeah, you can see that sometimes you just don't need a checkmate you're attacking without even needing
to checkmate.
The absolute pins are worth their weight in gold.
So Quinn H.
Freed would have to be played here.
Right?
It's the only legal move.
What else does White do?
And then we just take hair and then we mate.
So, yes, there is a lesson here in this game.
Skipping the opening.
Let's go to this position.
It didn't seem that bad here, but somehow White got into these tremendously bad pens.
It seems as I had a mini success there, getting rid of a central piece.
But yeah, it seems as though there's a lurking light square issue.
There's a responsibility in the light squares and the queens kind of in Siberia right now.
You could see say it's away from the king.
And so Black's attacking potential here was actually rather good.
So especially this position, this queen is actually, it seems a lot more functional than than the
counterpart queen.
So, yeah, this position just went very badly downhill.
The problem is, you know, White doesn't even have a check on E6 because this night.
So, yeah, going into these very, very nasty pens.
And if the light took those rock f one chap mates.
So the I had to stick around and you know, already it's kind of evident that, you know, one can't
really do anything because of this rock, have two friends.
So yeah, if it had gone immediately to H free.
It still looks absolutely diabolical.
G4 for example, and we're nudging the Queen away from G2 and then Rook half two And then what happens?
How is G2 protected?
So yeah.
White Try to
do something about G2 like this.
But yeah, this is a little bit sadistic, just enclosing white pieces like this and just using the
zugzwang option.
But yeah, it's something, it's an extreme example.
It definitely is an extreme example of the power of just locking up the opponent's pieces through absolute
pens.
So bear this in mind as one of the great little perks of.
That's hacking chess.
Okay.
And so much.