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Later Kibitzing> |
| Mar-17-06 | | Monoceros: It's puzzles like this which make me realise that, even if I really started to take chess seriously--I mean, spending a lot more time on it than I do, playing more than the occasional friendly game, trying to program myself and learn to concentrate--I'd probably never rise above a certain level of suckage. The most I was able to see after a few minutes of staring was that the crucial combination had to involve getting a Knight to d6 but I didn't even begin to guess how Korchnoi accomplished that. *sighs* |
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| Mar-17-06 | | Marco65: <RandomVisitor> In your line 38.exd5 is not forced. White just moves the rook and keeps one extra rook for a pawn |
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| Mar-17-06 | | YouRang: Well, I did find 34. Ba7 and followed it through to see that it won back the exchange plus a pawn after 38. Nxd6. It was the best I could do with this position. I was surprised to learn that it was the solution! :-) Not bad, 4/5 this week (missed Thursday's puzzle). |
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| Mar-17-06 | | RandomVisitor: <Marco65>If White does not take with exd5, Black has a pawn for the exchange and play. The line could go 38.Rcc1 Nf4
click for larger viewEvaluation +0.25 |
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| Mar-17-06 | | The17thPawn: <Marco65> - Actually in <RandomVisitors> line. White is up the exchange but down a pawn if he decides to move the rook on move 38. Black has play at that point. |
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| Mar-17-06 | | The17thPawn: <RandomVisitor> - I think your line works if white takes the rook on move 35. but 35.Nb6 looks like a whole different animal and seems to leave black constricted. Any thoughts? |
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| Mar-17-06 | | RandomVisitor: <The17thPawn>34.Ba7 Bd7!? 35.Nb6 Rd8 and Black is constricted but avoids any loss in material. Play could continue 36.Nxd7 Nxd7 with an evaluation +0.87. There is no direct win for White in this line. |
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| Mar-17-06 | | Cogano: Hello again <hitman84> & I sincerely hope this finds you well. No problem pal & don't mention it. & thank you so much for tolerating my ignorance & taking the time to clarify that. I'm most obliged to you for that. Take very
good care & have a great day & a great weekend too. Cheers mate! :) |
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| Mar-17-06 | | The17thPawn: <RandomVisitor> Agreed but it keeps the initiative in Whites hands. White would do well to proceed 37.Rc7 threatening to win the b7 pawn and tying black in further knots if he tries to defend the pawn. I like Whites chances here but it is not an immediate win. |
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| Mar-17-06 | | LoveThatJoker: I got this puzzle as well. I am glad. It took me in the neighbourhood of 5 - 6 minutes. Would anyone agree with me that this is one of those puzzles that involves positional depth as well as tactical depth? (By just a tactical puzzle, I refer to one that consists of a "quick-kill" Knight fork or something similar) ---
OBSERVATION:
Although Korchnoi's material aim with this combo was to win but a single pawn, he does manage to exchange a fair amount of pieces while doing so - allowing him the opportunity to reach an endgame sooner rather than later. Also, he manages to turn a drawish looking position into a clearly advantageous one for him. However, I have a question for anyone who is either of the Expert level or higher - Paging Mr. Rookfile: Was Korchnoi's aim with his last move 50. Kc3 to create a Zugzwang position? I thank anyone in advance wishing to respond to my question by giving me solely a list of variations for taking the time to read my post and answering it. However, I am looking for an answer based on the positional characteristics/subtleties/nuances of the final position from an Expert (and/or higher) ranked player. Why did Black resign so soon?
:) LTJ
al wazir: <LoveThatJoker: Was Korchnoi's aim with his last move 50. Kc3 to create a Zugzwang position?>
Yes; and he succeeded. Black has no good move. If he moves the or , white wins a piece immediately. If 50...Nxe6 then 51. dxe6 Qe7 52. Rf7. If 50...Qe7 then 51. Qc8 Qd7 52. Rxf8+ Nxf8 53. Qxf8+. **** Thank you, AL WAZIR****
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| Mar-17-06 | | RandomVisitor: After 50.b5 axb5 51.Bxb5 Black can play Nxe6 and complicate things a little. After 50.Kc3 Nh7 51.b5 axb5 52.Bxb5 Qe7 53.Qc8+ Bf8 (Nf8 Kb3!) 54.Kc2! Black truly is in Zugzwang and must play Rxe6 and it is all over. |
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| Mar-17-06 | | sez: bad puzzle |
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| Mar-17-06 | | TheSlid: Yes, <sez> I also did quite badly with this puzzle. At work this morning I had a horrible feeling that the game might be one of the "Games with White" from the book of Korchnoi's that I have played over in only the last few years. Fortunately it is not and so I am just bad at chess! |
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| Mar-17-06 | | YouRang: I was toying around with <hitman84>'s finish. <50...Nh7 51.Qf2! Qe7 52.Qa7! Nf8 53.Qb8> It looks like a practical zugzwang for Black, but he can still move his queenside pawns, and create counterattack chances: 53...b6
54. axb6 a5
55. Nxf8 (not bxa5, or else 55...Rxe6 56. dxe6 Qa3+ and White has troubles) 55...axb4+
56. Kb3 (not Kxb4?? Rd8+. The black pawn at b4 is the White king's best defender!) 57...Bxf8
58. b7 Kg7
59. Rxf8! Qxf8
60. Qxf8+ Kxf8
61. b8=Q+ 1-0 |
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| Mar-17-06 | | RandomVisitor: on 50...Nh7 51.Qf2 Qe8 can be tried for Black. If 52.Qa7 then Qc8. |
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| Mar-17-06 | | LIFE Master AJ: The event here is wrong.
The name of the tournament was:
"The Eighth (8th) Asztalos Memorial."
It was held in Gyula, Hungary.
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| Mar-17-06 | | jmelton: < RandomVisitor: Black seems to have a better line:
34.Ba7 Bd7!?
35.Bxb8 Bxa4
36.Qa2 Qxb8
37.Qxa4 Nxd5!
38.exd5 e4 >
But White doesn't have to accept the "sacrifice." One example of a better line would be 38.Rcb3 Nf4 39.b5 axb5 40.Rxb5 Qa7 41.Qc4 Re7 42.Qb4 Rd7 43.Nxf4 exf4 44.Rb6 Ne6 45.Ke1 Nc5 46.Kf1 Be5 47.Bf3 Rc7 48.Kg2 Kh8 49.Qd2 Kh7 50.Qa2Qa8 51.Rc1 Qe8 52.Qd5 Qd7 53.Be2 Kh8 54.a6 Nxa6 55.Rxc7 Qxc7 56.Rxb7 Qc2 57.Qc4 Qxc4 58.Bxc4, and Shredder gives White +2.79 at this point. Shredder actually preferred 38.exd5 (though I have to give Shredder credit for finding most of the specific moves in this line after I rejected its proposed 38th), but in every line I looked at Black was able to equalize because White's king was too out in the open. White's only chance at a win is to march the king over to what little pawn shelter he has left and keep the Black queen under lock and key. |
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| Mar-18-06 | | dakgootje: Wanted to sac my knight on e5 and then a little pawn-pushing with the d-pawn, but that didnt work =) |
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| Mar-19-06 | | hitman84: <YouRang: I was toying around with <hitman84>'s finish. <50...Nh7 51.Qf2! Qe7 52.Qa7! Nf8 53.Qb8> >Thx for the continuation :) |
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| Mar-19-06 | | hitman84: <RandomVisitor: on 50...Nh7 51.Qf2 Qe8 can be tried for Black. If 52.Qa7 then Qc8.>thx I guess there is a simpler win.. 50...Nh7 51.Qa7 Qc8 53.Nc5 b6 54.Rf7 |
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| Mar-21-06 | | LIFE Master AJ: Mar-17-06
< TheSlid: Yes, <sez> I also did quite badly with this puzzle. At work this morning I had a horrible feeling that the game might be one of the "Games with White" from the book of Korchnoi's that I have played over in only the last few years. Fortunately it is not and so I am just bad at chess! > You are NOT bad at chess, this was just a difficult puzzle!!! (I doubt if the average player got it.) I don't know if this means anything to you, but if your comments are any indication, you are probably ABOVE average. (From 30+ years of teaching and I played in my first USCF-rated event in 1966, when I was just eight years old.) |
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| Mar-22-06 | | TheSlid: <LIFE Master AJ> Thanks for your comments... I used to play to about BCF 140-odd as a student in the late 1970's. That would have been a fairly solid club player. As an observation, I think that nowadays an "average" player only has to play a computer a few times to realise just how great the difference is between "average" and "good". This was indeed quite a hard puzzle - on which I never got started. |
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| Mar-23-06 | | patzer2: The deflection 34. Ba7!! initiates a long combination to win a pawn with decisive positional advantage. |
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| Apr-20-06 | | LIFE Master AJ: <patzer2>
Did you ever classify this one?
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| Apr-26-06 | | patzer2: <LIFE Master AJ> I had made a very poor attempt at classifying it. After reflection, it appears 34. Ba7! appears to set up a Knight Fork. |
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Kibitzing
sac: 35.Nb6