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Johann Hjartarson vs John van der Wiel
Chess Olympiad (1984), Thessaloniki GRE, rd 6, Nov-24
Queen's Indian Defense: Fianchetto. Nimzowitsch Variation (E15)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Mar-02-11  Sleeping kitten: I didn't find 32 ♕a6+! ; however, doesn't the line 32 ♗c8+ ♔b8 33 ♗a6 win as well ? For example, 33... ♖xc6 34 ♕d8+ or 33... ♘c7 34 ♖xb6 or 33... ♖xa6 34 ♕d8+ or 33... ♕c7 34 ♕b4 ♕xc6 35 ♕f8+ ♔c7 36 ♕e7+.
Mar-02-11  eblunt: <tallinn:> Same solution as me, personally I don't think winning the black Queen in 4 moves is that sub-optimal myself. A win is a win after all, and that is a clear win.
Mar-02-11  alachabre: OK, the Black king is darned well surrounded, so a sacrificial attack of some kind is warranted. (Sometimes I worry about these forced variations; because so much of a game is unforced, these puzzles may lead to bad habits.) I looked at

32. Bc8+ Kb8

But don't see a good continuation. So the forcing

32. Rc7+ Qxc7 (Kb8 allows Qxa7#)
33. Rxc7+ Kxc7
34. Qxa7+ and is that a killer?

34. ... Kd8 allows checkmate, but either Kd6 or Rb7 look like a sound defense. Granted, White can pick off the stray knight in the corner, but ends up the combination down a full rook. Plus, the price of the knight appears to be the b pawn.

So how about the simple and mundane

32. Rxb6+ axb6
33. Qa6+ Kb8
34. Rc8#

32. ... Nxb6
33. Qa6+ Kb8
34. Rc8+ Nxc8
35. Qc8#

So, maybe good habits are reinforced anyway.

Mar-02-11  Patriot: 32.Qa6+ is a clean kill. It's too bad I didn't consider it. In haste, I decided 32.Rxb6+ since after 32...axb6 33.Qa6+ Kb8 34.Rc8#. And on 32...Nxb6 33.Qa6+ Kb8 34.Rc8+ Nxc8 35.Qxc8#. Solved! But after I opened the puzzle and saw that it wasn't the move played I wondered if I missed something. It was 32.Rxb6+ Nxb6 33.Qa6+ Ka8. But it turns out that it wins anyway: 34.Rc8+ Nxc8 (or 34...Qb8 ) 35.Qc6+ Kb8 36.Qxc8#.

It's a winning line but I can't take credit for several reasons: 1) I missed the critical 33...Ka8; 2) I did not consider the simple 32.Qa6+. If I calculated everything out properly and saw that it was winning, my only contention is that I didn't look "wide enough" to see 32.Qa6+ and got too deep in the inferior line.

Mar-02-11  alachabre: I see <lennonfan> found an improvement in my last line, 33. ... Ka8! giving the queen a defending entry square. (There's my blindness again - forgetting to mentally vacate a square when visualizing a variation. If I could cure that, I would be an expert in no time!)

Now I have to sneak in the back door:

34. Bd7 Nc5
35. Rxc5 Nxd7 (ignoring delaying actions)
36. Rc8+ N (or Q) b8
37. Qc6#

Mar-02-11
Premium Chessgames Member
  doubledrooks: Subscribing to the guideline of looking at all checks, I found 32. Qa6+ Rxa6 33. bxa6+ Kb8 34. Rc8#
Mar-02-11
Premium Chessgames Member
  patzer2: <LIFE Master AJ: It actually took me at least a minute (or maybe a lot more, I did not time myself) to come up with the right answer.

For me - sometimes the simplest stuff is the hardest to spot.> Me too! I kept trying to sacrifice the rook, but couldn't make it work.

Is "when all else fails, look for something simpler" on your check list for evaluating moves? Or better perhaps is "look at all checks and captures quickly before evaluating any of them in depth." As soon as I bothered to look at 32. Qa6+! the mate was obvious -- something I'd have seen in blitz.

Then why did I sit there for over three minutes trying to sac the doggone rook?

Mar-02-11
Premium Chessgames Member
  kevin86: I missed this one:now 0/3 this week. yecccchhhh!

I missed the queen sac and went with Bc8+.

Mar-02-11  Stormbringer: For some reason I was interpreting all the bxa6 responses as Bishop takes a6 and thought you'd all lost your minds. :D Oops. Needless to say, I didn't get it. I wanted to send the Bishop to c8 instead.
Mar-02-11
Premium Chessgames Member
  YouRang: So, cg.com made up for the complicated Tuesday with an easy mate-in-3 Wednesday. :-)

I figured pretty quickly that we wanted to control b7 in order to force the K to b8, and then we have Rc8#.

White has so much firepower aimed at black's king that I figured we could easily afford a sac to bring about this plan, and with that in mind, I found 32.Qa6+! pretty quickly. A rather pretty mate too.

It's interesting to note that we didn't even need the bishop at h3!

Mar-02-11  newton296: I found Rxb6+ Nxb6 Qa6+ first and figured it mated or at least won the Q in 4 or 5 moves and stopped looking. wish I had looked harder and found Qa6+ as it is faster. gave myself credit as white still wins easy after Rxb6+
Mar-02-11  rilkefan: <but not as amazing as>

I find this steady self-hyping to be annoying. Esp. when it's without any relation to what's at hand. I'm going to start reporting it as violating posting guideline 2.

Mar-02-11
Premium Chessgames Member
  TheBish: Hjartarson vs Van der Wiel, 1984

White to play (32.?) "Medium/Easy"

I found this right away, before I noticed the bishop on h3! Of course, 32. Bc8+ Kb8 does nothing, and the bishop is not even needed here.

32. Qa6+! Rxa6 33. bxa6+ Kb8 34. Rc8#.

Considering the preponderance of white pieces in the black king's "kitchen", this shouldn't be too hard to find for the club player.

Mar-02-11  sfm: <rilkefan: [but not as amazing as] I find this steady self-hyping to be annoying...>

I agree with <rilkefan>. It is misleading spam. TuxedoKnight, your site clearly has value for chessplayers, and you deserve much better than the backfiring spamming may induce.

A simple recommendation: Get a real domain name - say TKchess.com - and use the name TKchess-dot-com, or similar, as your username here. Genuine comments will have people visiting your site and nobody will (should) be annoyed.

Best wishes! (sfm, (too) old webmaster)

Mar-02-11
Premium Chessgames Member
  Once: <TuxedoKnight> A word of advice, if I may...

I really admire what you are trying to do with your site. You have had the cojones to try something new and have put in the effort to do something that not many people would. All credit to you for that.

But, you do need to be careful that you don't try just to duplicate what CG.com does. If you do that, then the folks here could get annoyed because it would come across as nothing more than advertising and spam.

On the other hand, if your site complemented CG.com in some way than that would allow the two sites to co-exist. Look at how kingcrusher's videos add an extra dimension to a game or the use of the crafty endgame trainer to try out a position. Nobody complains about those because they <add> to the experience of reviewing a game on CG.com.

So what sort of things could you do with a site that would make it stand out, make it different?

One idea would be to group puzzles by theme (smothered mate, fork, pin) or by difficulty. Or you could go for an educational slant - eg a programme of puzzles to work through methodically to help hone your tactical abilities.

What is it that they say? Invent a better mousetrap and the world will beat a path to your door. But turn out just another mousetrap like all the others, and you are competing against people who have been making mousetraps for generations.

And if they didn't say that, maybe they should have done!

Mar-02-11  sevenseaman: <<YouRang> It's interesting to note that we didn't even need the bishop at h3!>

Right. Not in the correct, optimal solution. H3 bishop is essential in the longer solution. In fact the bishop encourages the solver to go wrong.

But it is not a set puzzle, its an actual game.

Mar-02-11  Dr. J: Among the hundreds of forced wins, I don't believe anybody has yet pointed out 32 Ra1, whereupon Black must give up his queen.
Mar-02-11
Premium Chessgames Member
  tpstar: <TuxedoKnight> Congratulations on starting your own chess site, which is off to a great start! You are already much further along than previous chess enthusiasts who tried to get a site or blog off the ground. I like how your puzzles focus on endgames (where we all need more practice), and your collections of traps and classics are very nice (fix the Morphy Opera House game title). When you develop new content, maybe post one announcement per week on The Kibitzer's Café asking for feedback from the group.

We should all be encouraging this enterprising junior with his project, which will be fully complementary to cg.com. I disagree that linking to a free chess site is advertising, and I disagree that one or two announcements per day constitutes spamming. Personally I would much rather see chess links than off-topic traps like alternative medicine sales pitches or right/left chat rooms with constant pop-ups.

Go Chess. =)

Mar-02-11
Premium Chessgames Member
  Jim Bartle: <TuxedoKnight> I haven't looked much at the content, but that is one very nice-looking site. Easy to navigate. Congratulations.
Mar-02-11
Premium Chessgames Member
  gawain: I looked at this puzzle for about ten minutes and finally saw my way clear! Pretty mate! The Queen sacrifice at a6 blasts the defense apart. She must be taken (on pain of mate on the move) and then the recapture with the pawn forces the K to b8 where he is mated anyway.
Mar-02-11  stst: 32. Qa6+

if 32....Kb8, then 33. Rc8#

if 32....RxQ, then 33. PxR+ Kb8; 34. Rc8#

Looks like it's a Monday puz wrongly put here, 1/2 star maybe.

Mar-02-11  mandy64: My idea was: 32.Rxb6 Nxb6 33.Qa6+ Ka8 34.Rc8+ Nxc8 35.Qc6+ Kb8 36.Qc8# or 34..Qb8 35. Rxb8 eliminating the black lady
Mar-02-11  WhiteRook48: i missed the queen sac Qa6+
i'm failing this week
Mar-02-11  psmith: Somehow this one was easy for me.
Mar-02-11  SufferingBruin: <psmith> My sentiments exactly!
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