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Gregory Kaidanov vs Aleksander Wojtkiewicz
PCA Qualifier (1994)
Sicilian Defense: Najdorf Variation (B90)  ·  1-0


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Kibitzer's Corner
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Premium Chessgames Member
  kevin86: The knight antics this week are shown today as their Sunday best! The combination is very Capablanca-like. White combines direct attacks with veiled threats.

A fine win by white!!

Premium Chessgames Member
  al wazir: I spent ten minutes thinking about this and never considered 18. Nf5. I'm sure that I would have found it in another hour or two--but how often do you spend an hour OTB just analyzing a possibility???

It's really complicated. Suppose black had played 20...Qb6. If 21. Kh1 then 21...Nxb3; if 21. Qe3 then 21...Rae8; if 21. Bd4 then 21...Ne4 22. Bxb6 Nxg3+ 23. hxg3, and black has a ♖ and a ♙ for a ♗ and a ♘. Is there any better continuation for white?

I wonder, how much time did Kaidanov take on move 18 and the ones immediately preceding it? Specifically, I question how thoroughly he analyzed the combination before embarking on it. Suppose it had failed. If it had, CG would not have made it the problem of the day, and we would not be looking at it. In other words, I am asking how much of this brilliancy was foresight and how much is hindsight.

When you watch basketball highlights on TV, they very seldom show a shot that misses. But less than 50% of all shots go in the basket.

Premium Chessgames Member
  al wazir: Oh, and after 20...Qb6 I left out 21. Nd5 Ne4+. If 22. Nxb6 then 22...Nxg3+ 23. hxg3 Rad8. If 22. Kh1 then 22...Rfe8. Then 23. Nf6+ Kf8, etc., as in the game -- but when white goes to play Qc3, black has Nxc3.
Premium Chessgames Member
  al wazir: <Cogano>: Please don't take offense, but could you cut back on your good wishes just a bit? Say, by limiting yourself to one "Take very good care & have a great day" per session?

I'm patriotic, but I don't recite the pledge of allegiance every time I see an American flag.

Premium Chessgames Member
  thegoodanarchist: This is one of those that separates the strong players from the patzers. It is not difficult to understand the combination in hindsight - Black's dark-square bishop is protecting his knight on e5, and he has weakened the dark squares around his king. f5 is only protected by one pawn, since the other is pinned, and that one pawn lies on the diagonal between Black's king and White's light-square bishop. So voila, Kaidanov moves the knight in order to sac the rook for the dark-square bishop, and Black's position collapses. However, Nf5 never entered my mind before I looked at the game. Sigh... Oh well, maybe one of these days I will see stuff like that beforehand.
Mar-19-06  goldenbear: <anarchist> I disagree. I think its more a matter of style. I am an 1800 player who looked at this and in a second considered Ndb5 and only about 5 seconds later found Nf5. I am certain I would have played this quickly over the board. Why am I rated 1800? There are many aspects to a chess battle besides winning tactics. So I don't think how quickly you see these puzzles to be a good characterization of chess strength.
Mar-19-06  jmi: Is there any reason why 25... Re7 cannot be used to defend the King?
Mar-19-06  goldenbear: I also found my suggestion for Kasparov's 21st move in Anand vs. Kasparov Linares 1999 0-1 in about 5 secs. Still waiting for someone to check it out and reply.
Mar-19-06  Cogano: Hello again <al wazir> & I sincerely hope this finds you well. Just for the record, what I do & why I do it goes beyond such things as patriotism. I begin & end my posts the way I do because that reflects my attitude, my beliefs, my philosophy, my personality & my preferred, chosen way of treating myself, & thus others, & of conducting myself in general. You must conduct yourself as your conscious dictates. Respectfully, you're asking to change who I am, change my beliefs etc. so as to communicate differently. Sure I can get lazy at times & have tried walking that road. But, I've found the results too much beneath the standard of ethical, moral, honourable & dignified conduct that I aspire to, that I no longer consider being tired or lazy as an excuse to express myself differently -- just as it would be unreasonable if a guy who always treated his wife/girl-friend well, with respect, with compassion & with dignity etc., thought /decided that treating her like an object or something of no value would be justified under X circumstances! So, respectfully as well, I sincerely hope you can understand my need to refuse your request. :) Thank you most kindly for your anticipated & continued patience, tolerance, understanding, consideration & assistance. Take very good care & have a great day -- & enjoy what's left of your weekend too. :) Cheers mate! :)
Mar-19-06  dakgootje: <fadaly3000> 18.Nxe6 Bxe6 19.Rxd6 Qxd6 20.Bxe5 Qc6 21. Qg5 f6 and black is in no trouble at all.
Mar-19-06  Zaius: <Cogano> I hope that you too will have a great end of weekend. Sometimes I sit around ask myself, "What kind of good things do I wish on Cogano?" and I get a multitude of answers. For one, I hope you have a very good rest of the day. I also hope that tommorow is a good day for you. Who knows maybe you could get lucky during the night in between today and tommorow? I certainly hope so. I hope that your family and friends do well and I hope that their family and friends do well. If you took this to its natural conclusion, you'd realize I hope that all of humanity does well. I wish them the best, I truly do. I just wish happiness upon all people many times over. I wish you the best!

I really do wish you the best!

The best! Really!


Premium Chessgames Member
  al wazir: Et tu, Zaius?
Mar-19-06  Zaius: <al wazir> As per your request, I do not wish any good things upon you.
Mar-19-06  Montreal1666: <Mendrys:><independentthinker .....Can someone punch this into fritz and let me know what the resulting m,oves are? Also, if anyoneh had any engines, can they see if they would have got this move?> After about several minutes (<10) crafty 20.1 found: 18. Nf5 exf5 19. Rxd6 Qxd6 20. Bxe5 Qd2>

As I said before 20)... Qc6 is not forced and obviously not the best move for black. I don't know what does that imply about the puzzle.

Mar-19-06  Boomie: <independentthinker> After 18. ♘de2 f6 and black is up a pawn.

Uncle Fritz sez: 18. ♘de2 f6 19. ♕e3 ♖f7 -0.58/15

Mar-19-06  Cogano: Hello <Zaius> & I sincerely hope this finds you well. Thank you most kindly for your most gracious words. Your attitude & manners are most refreshing, given what the "atmosphere" around here can be like. I'm most obliged to you sir for your well-wishes. I wish you, in turn, the best of everything every day & a most joyous day & night every day & night. Cheers mate! :)
Premium Chessgames Member
  patzer2: White's clearance sacrfice 18. Nf5! prepares a decisive attack to weaken and infiltrate Black's Kinside castled position.
Oct-01-10  sevenseaman: The game didn't have a direction until Kaidanov tossed the N at 18. Nf5. Every move thereafter has its purpose written on it. A truly astonishing insight from Kaidanov!
May-10-15  ToTheDeath: A very nice crush.
Dec-17-17  wtpy: Got it quickly but stopped analyzing at Nd5 so didnt consider Re8 as defense. This week has seemed easy, my first 7/7 for several months.
Premium Chessgames Member
  Cheapo by the Dozen: Like some of the posters from 2006, I gave up after failing to make Nxe6 work.
Dec-17-17  bane77: First three moves were easy to see for me, at least that was an obvious idea. But the real killer-move is 21. Nxd5! Black is unable to defend weak black squares.
Premium Chessgames Member
  morfishine: My first thought was <18.Ndb5> attacking the Black Queen along with a double attack on the DSB (besides the clearance theme initiating an attack down the d-file)

I didn't really see <18.Nf5> at all


Premium Chessgames Member
  patzer2: Black's not so obvious error was 17...Bd6?, allowing today's difficult Sunday puzzle solution 18. Nf5!! +-.

Instead, 17...f6 18. Nf5 Bc6! = (0.00 @ 33 ply, Stockfish 8) holds it level.

Premium Chessgames Member
  malt: <18.Nf5!> does the job.
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