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Wolfgang Unzicker vs Stuart C Conquest
Bundesliga (1986/87), GER
Sicilian Defense: Dragon. Classical Variation Battery Variation (B73)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
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May-07-06
Premium Chessgames Member
  al wazir: Unzicker must have foreseen the possibility of trapping black's ♕ when he played 20. Nd5. Conquest missed it. So did I.
May-07-06  TrueBlue: well, United, queen looks dangerous at h3, how can you ask her to leave, Rh2 looks natural to me.
May-07-06  rdthieme: I am new here and a complete Patzer, but what happens if 22 . . . Qd8? The knight fork doesn't work because the Queen just takes it. And the exposed attack by the rook on the Queen also fails because the rook is undefended. What am I missing?
May-07-06  United33: <TrueBlue> well, i was thinking about 23.Ne7+ and exhange my knight for a rook or at least 23.Nf6+. I really missed 23.Rh2 to trap the queen. I think Queen on h3 doesn't look dangerous because the only support is bishop, and white have a queen, a rook and a king to defend the area.
May-07-06  pawntificator: <rdthieme>, after 22...Qd8 23. Nf6+ Qxf6 the queen is lost (24. Rxf6) because there is still a rook on f2, defending knight.
May-07-06  rdthieme: <pawntificator> after 22...Qd8 23. Nf6+ Qxf6 the queen is lost (24. Rxf6)

Right. I forgot about that rook.

May-07-06  EmperorAtahualpa: Missed this one. :( Still, I regard this as one of the easier Sunday puzzles..
May-07-06
Premium Chessgames Member
  Open Defence: geez I was looking at all the strange moves and not for the obvious ones ... tsk tsk
May-07-06  patzer2: <rdthieme> The tactic 22...Qd8 23. Nf6+! is classified as a "discovered attack," which in this case per http://en.wikipedia.org/wiki/Discov... is sometimes referred to as a "discovered attack with check." You can find an explanation of this tactic and the related subcategory "discovered check" on pages 19 to 22 at http://www.ericschiller.com/pdf/Kil..., which is an excerpt from the book "Killer Chess Tactics." You might also find the explanation at http://www.chessville.com/instructi... helpful.
May-07-06  c o r e: Well I got as far as winning the exchange for the h pawn, but I was certain this wasn't the complete answer. Lo and behold, the complete answer is so much nastier.
May-07-06  patzer2: Black's last best chance to hold appears to be 19...Qg3 20. Qxg3 Bxg3 =. Fritz 8 indicates Black can survive with only a slight disadvantage after the odd looking 20...Kg7 21. b3 , but it's not a position I'd like to have to defend.
May-07-06  JSYantiss: patzer2, if 21...Bxd5, then 22. Bf6 were played, Black could play 22...Qxe4 and be up a pawn.
May-07-06  patzer2: Yes, but after 21...Bxd5 22. Bf6 Qxe4 23. Qh6 Black gets mated.
May-07-06  Fezzik: Chessgames had the interesting chance of showing Unzicker beat Tal (yesterday) and then beat Botvinnik. That game was probably more worthy of being a Sunday puzzle than this one. Botvinnik resigned after missing the game-winner!

I *almost* agree that this isn't worthy of being a Sunday puzzle. 21.Be5 is an obvious move for a real game situation (not just a puzzle), and 22.g3 is an obvious follow-up. But 23.Rh2! is a bit more difficult to see. Having said that, White was winning anyway, so 23.Rh2 wasn't absolutely necessary.

May-07-06  LIFE Master AJ: Taking on h3 looked like a blunder ... but I guess It did not matter. Originally, I thought that 22...Qd8 held, but now I see that it does not.
May-07-06  TrueBeige: Trust me, Nobody cares, TrueBlue. . .
May-07-06  Paintbucket: I tried Qh6, a rook sac, and the knight forking the king and rook. I was nowhere close with either of the three.
May-07-06  aazqua: Qh3 is ridiculous. Qd8 obviously fails. At least qh5 holds things while giving up the exchange.
May-07-06  dakgootje: Okay this puzzle was just too simple for a sunday. Not because i got it and because im sooooo brilliant that i can say that every sunday puzzle is way too easy, as those things arent true, but for the simple reason that it was too obvious and easy. I mean, ive been away for the weekend, come back here at around... 10.30 PM, after having some busy and intensive days and i just though, well have a quick look at the puzzle and if you havent got it in 5 minutes yet (which would be extraordinary fast for a sunday puzzle) then you read the comments, maybe comment on one of them, and then just get some sleep... Now is the case that i got the puzzle in those minutes as sleepy as i was, so the only conclusion i can think about at the moment is that the puzzle was too easy.
May-07-06
Premium Chessgames Member
  kevin86: A very ingenious queen trap. The puzzle was less deep than the usual Sunday puz-but the chase of the "lesser" monarch was a great curve.
May-07-06  wals: Thank you patzer2 for your clear concise comments on, and dissection of this and other games. Very well done.
May-07-06  cavaleiro: beautiful!
May-07-06  jperr75108: Good puzzle for a sunday. The queen trap is hard to see.
May-07-06  Fezzik: I wonder where Lifemaster AJ would have placed the Black queen instead of taking on h3. He suggests that 22...Qh3 is a blunder. Every legal square loses the Queen in some way, so 22...Qh3 looks like the most testing way against a human. (A computer would look to exchange the queen for a rook, but a human would know it doesn't make a difference and 23.Rh2! is a *bit* difficult to see for a human.)
May-08-06  Greginctw: Took me over twenty minutes to see this one into entirety, but I got it finally! I wasted so much time looking at so many crazy stupid variations. Calculated everything but the obvious.
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