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Harris vs Sunil Weeramantry
London (1972)
Pirc Defense: Austrian Attack. Weiss Variation (B09)  ·  0-1
ANALYSIS [x]

FEN COPIED

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Given 11 times; par: 23 [what's this?]

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Kibitzer's Corner
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May-23-08
Premium Chessgames Member
  DarthStapler: Wow, I never even thought of that
May-23-08  xKinGKooLx: 3.5/5. I got the first move at least... so I'm giving myself half a point, but I STILL NEED to learn to look further ahead - I still find it so hard to do, after many years of playing! This combination was definitely within my boundaries - I might have got it if I had used a board (as usual) but I need practice to visualise the board many moves ahead. It's always so obvious after you look at the answer!
May-23-08
Premium Chessgames Member
  johnlspouge: <<benjinathan> wrote: I liked the 21...Bxg1+ deflection. I never would have seen that on turn 16.>

The really scary point is that Weeramanty probably foresaw the combination on move 15...Qh4, because he let White play 16.Bh6, instead of capturing Bf8 and reducing his material investment to R for N+P.

May-23-08
Premium Chessgames Member
  pittpanther: A nice puzzle. I saw up through Nf2 and the queen fork but missed 21...Bg1+ in my analysis (maybe I should use a board rather than doing it all in my head). Perhaps I get some partial credit :)
May-23-08
Premium Chessgames Member
  kevin86: The real key move here is the quiet key,16...f3. After that,white's pieces seem so confused that they are unable to protect the king or queen.

Several tactics are used here.

16.block the queen's coverage of g4

18 divert the rook from the f-file

19 fork the king and queen

21 divert the king from the protection of the rook at g3

23 capture the bishop,leaving white a mere knight and bishop in exchange for the queen.

May-23-08
Premium Chessgames Member
  YouRang: Hey, I got it. :-)

We have a lot of material surrounding the white king, and clearly it was a matter of finding the breakthrough.

The most promising attack would come from the two knights. In fact, we can easily see an 'almost mate' of: 16...Ng4+ 17.Kh1 Ng3# -- except of course that white has one defense: 16...Ng4+ is met by 17.Qxg4.

Can we take out this defense? I found no way to deflect the queen, but can we block it?

This question brings 16...f3! into view, since it blocks the queen's access to g4. The queen can't take the pawn (17.Qxf3? Nxf3 ), nor can the g2 pawn (17.gxf3? Qg3+ 18.Kh1 Qxh3#).

The only way to stop the knight mating attack is to take the pawn with the rook, which *still* blocks the queen's defense of g4! So, 17.Rxf3 Ng4+ 18.Kh1.

Here, it took me a moment to see the continuation, as the rook now guards against ...Ng3#. However, in a moment I saw the knight fork, and it was over: 18...Ng3+ 19.Rxg3 Nf2+ forking & winning the queen.

I must admit that I stopped there, and didn't notice white's queen trapping threat afterwards: 21.Bg5!, but black conveniently had 21...Bg1! to get out of it.

May-23-08  zb2cr: 16. ... f3 does the trick, by cutting off the White Queen from defending g4.

Saw this surprisingly quickly, under 1 minute.

May-23-08  goodevans: 5/5 so far this week.

White's 21 Bg5 was a horrible mistake. I reckon it would have been worth playing on after 21 Rxd1.

May-23-08  MrMojo: White may have been better off trying 21.Rg4, which appears to me to save the rook. If 21...Qxh6, 22.Rxd2. Or if 21...Be5+, 22.g3 Qxh6 23.Rxd2. Either way, he has R and N for his Q.
May-23-08  zooter: <moppa: I had 19...Qxg3, threatening 20...Qh2# and ...Nf2+. 20.hxg4 Qh4# was the idea. So 20.Bf4 seemed like the only defence, whenm black has the windmill-like 20...Nf2 21.Kh1 Nxh3+ 22.Kg1 Nxd1+ 23.Kg1 and black wins both white bishops too, if he wishes.

Is there a defence I missed? This looks like even stronger than the game continuation.>

19...Qxg3 meets with 20.Qxg4

I didn't notice this move, but it ends up with a big advantage for white...look at the material difference

May-23-08
Premium Chessgames Member
  johnlspouge: <<MrMojo> wrote: White may have been better off trying 21.Rg4, which appears to me to save the rook. [snip] Either way, he has R and N for his Q.>

Hi, <MrMojo>. You are correct. That is the (otherwise) cryptic meaning of my final phrase: <assuring Black of being left with Q for R plus minor piece>, rather than Q for B+N.

If White does not try to swindle with the pseudo-boomerang combination, Black just walks away with Q for R plus minor piece. In practice, the swindle might be the best try to salvage the game, given that defending against Q with R plus minor piece is likely to be both painful and unproductive.

...And yes, I know the computers disagree with me.

May-23-08
Premium Chessgames Member
  patzer2: For today's Friday puzzle solution, White initiates a deep Knight Fork combination with 16...f3! See <dzechiel>'s commentary above for an excellent explanation of the forcing game continuation.

Apparently, the combination was set up earlier by the attacking positional sacrifice 12...exf4!

May-23-08
Premium Chessgames Member
  YouRang: <johnlspouge><...And yes, I know the computers disagree with me.>

Not so much. :-)

At least the computers agree that 21.Bg5 was inferior to a number of other 'damage-control' moves like Rg4 or Rxd1 or Ne2.

On the other hand, such moves clearly leave black trying to defend a losing game. Not much fun in that.

If I were white, I would also opt for the counter-computer 21.Bg5!? hoping that black (perhaps mentally celebrating his 'winning' fork) might play the lazy 21...Qh5??, after which white wins with 22.Be2!

And if black does find the one-and-only defensive resource: 21...Bg1+!, then you can laugh, congratulate your opponent on a good win, and go do something fun with the time you saved.

I mean, if black is cautious enough to not fall for this swindle attempt, he's going to play carefully enough to hang onto the win after 21.Rg4 (or one of the other damage-control moves). It will just take more time.

May-23-08
Premium Chessgames Member
  kwgurge: Quite a nice combination by Nakamura's stepdad.
May-23-08
Premium Chessgames Member
  Once: This is a combination that you have to build. The near stalemated king suggests that we need to find a series of checks (just like yesterday).

So I tried to make 16. ...Qg3+ work. But no matter how many crazy sacrificial lines I looked at, I could not break through. The problem was that the queen was sitting on a square that one of my knights needs.

Rewind, start again. Next I looked at 16. ...Ng4+. Nope, that does not work either, because of 17. Qxg4.

Third time lucky! Ng4 is now on my wishlist, but I need stop the queen recapture first. The only move that does this is 16. ...f3. So let's investigate that. Clearly, the f3 pawn cannot be captured by queen or g2 pawn, so that just leaves the rook. Now knights can get into the action, as per the game.

I must confess that I missed the late queen trap attempt, but I got the rest.

May-23-08  tatarch: You have to assume Weeramantry was playing on intuition with 12...exf4 and didn't calculate every continuation, which makes it a truly admirable move. And if he did calculate everything, well... good for him.

This would be a good Sunday puzzle if it started at move 15 instead of 16.

May-23-08  234: Thursday puzzle <16. ?> May-22-08 Prince Dadian vs Kolisch, 1867
May-23-08  jheiner: Black to Play. Black is down a R, up a P, with a fierce attack on the K. Look for mate. Black's pieces are very active, and there is little defense around the White K.

When hunting Kings, start by looking at how the squares around the K are controlled. Note the dark B controls g1. The K has only h1 and h2, and the N's are setup perfectly for: Ng4+ and Ng3#. Unfortunately, Ng4+ is met with Qxg4. We can't really deflect the White Q, but we can interfere.

Candidate: f3! - interesting move because it blocks the Q, but also opens up the f4 square for the Black Q. I like this move. It is also forcing.

Variations:
16...f3 17.Qxf3 Nxf3
16...f3 17.Rxf3 Ng4+ 18.Kh1 Ng3+ 19.Rxg3 Qxg3 20.Qg1 Bxg1 16...f3 17.gxf3 Qf4+ 18.Kh1 or 18.Kg2

Oops. Qf4+ Bxf4. Well, that's not good.
16...f3 17.gxf3 Qg3+ 18.Kh1 Qxh3#

Time to check. Oh, btw, I love Weeramantry. Simply because his book "Best Lessons of a Chess Coach" is such a joy to read. Bravo.

Interesting with the Q fork. Certainly was correct. My continuation works leaving the N on g4 and continues (from above) 21.Kxg1 Qh2+ 22.Kf1 Qh1+ 23.Ke2 Qxa1 and Black has Q+N+R vs. B+B+N and White has a desolate position.

5/5 this week so far. Definitely seeing huge improvement for me.

May-23-08
Premium Chessgames Member
  johnlspouge: <<jheiner> wrote: [snip] Definitely seeing huge improvement for me.>

If you want a reality check, <jheiner>, your idea

<When hunting Kings, start by looking at how the squares around the K are controlled.>

underlies my desire to <widen the attack, to the light squares>.

I am taking notes :)

May-23-08  jheiner: Some follow up on my earlier comments. I realize those should have been . Or maybe that's not even strong enough. I am an armchair analyst, so some style comments would be welcomed.

Looking at this position with Fritz (and I think a few people pointed it out), 19...Qxg3 20.Qxg4 is crushing.

I might have seen the fork OTB, but didn't visualize it. No points for me today. :)

May-23-08  jheiner: <<johnlspouge> wrote: underlies my desire to <widen the attack, to the light squares>.>

Good way of looking at it. The h5 N (on light) and the Q are where that attack has to come from, since the e5 N and B will have a tough time getting to light squares. So that way of thinking helps to visualize the attack.

Keep the great comments coming. I enjoy reading yours, and afterwards I always think "Darn, I should've WRITTEN DOWN things like the discovered attack on the h5 B or the h3 P pin, because I was sorta thinking that"...but that's not good enough.

I usually post my solution raw, before reading the kibitzing. I blew the N-fork on this one, even though I thought about it as a wishlist early one, I forgot about it later.

While i'm enjoying getting the main idea of these puzzles, they are really pass-fail to me. You miss a tactic in a real game, you resign.

May-23-08
Premium Chessgames Member
  johnlspouge: <<jheiner> wrote: [snip] I enjoy reading yours>

Thanks. I recognize my approach (to everything) is very idiosyncratic, so I appreciate the encouragement.

<<>I usually post my solution raw, before reading the kibitzing.>

I admire the courage in a "raw post". (<dzechiel> is amazing for being able to analyze chess in a stream of consciousness, which clearly takes deep experience.) I confine my posts to the "raw", or else admit defeat, because my variations are too detailed to be worth much if they are wrong.

<<>While i'm enjoying getting the main idea of these puzzles, they are really pass-fail to me. You miss a tactic in a real game, you resign.>

While I hold myself to the pass-fail standard, I think I can claim my failures are better than they were 4 months ago. So can you ;>)

In any case, the interest lies more in improvement than in any pass-fail standard.

Aug-19-10  Lokaz: Did black purposely allow Bxf8?
Jun-27-13  markgravitygood: Weeramantry recommends taking Black in the final position against a strong adversary (any current chess program will do!) and see if you are capable of winning it through. This is great practice for finishing off an opponent and honing your technique.
Jun-27-13
Premium Chessgames Member
  perfidious: <RandomVisitor: 12.f5 is good for white.>

My preference too would be for White after 12.f5, which is why it was understood even then that interpolating 10....exf4 is a safer way to play this, per the Keene/Botterill volume on the Pirc.

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