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Hitech (Computer) vs Sergey Kudrin
Chicago Nat-open 1988  ·  Sicilian Defense: Old Sicilian. Open (B32)  ·  0-1


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sac: 30...Rxa2+ PGN: download | view Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing >
Nov-03-05   riqhi: too easy for thrusday.
Nov-03-05
Premium Chessgames Member
  YouRang: <patzer2> Thanks for showing the continuation after 33. Kc1. It looked like "mate had to be there", so I stopped looking. Well, mate was indeed there, but it's still instructive to see how neatly one can finish the job.
Nov-03-05
Premium Chessgames Member
  kevin86: Same key move-new wrinkle:this time a queen is won and mate not as soon as expected.
Nov-03-05
Premium Chessgames Member
  patzer2: Note that 33. Kc1 Ra1+! 34. Kd2 Ra2+ 35. Kc1 Bf4+! forces a winning pin on d2, which allows Black's Queen to mate on c2:


click for larger view

If 36. Re3 Bxe3+ 37. Qd2 Qc2#

If 36. Nd2Qc2#.

If 36. Qd2 Qc2#.

If 36. Rd2 Qc2#.

Nov-03-05
Premium Chessgames Member
  dakgootje: Think i have a lil clue about the first move for tomorrows puzzle...*thinks already about the continuation...;)*
Nov-03-05   HoopDreams: figured this one out in a couple minutes, saw how his queen was unprotected and then saw how after Be5+ his king was just wating to be mated... then immediatly saw the rook solution
Nov-03-05   mazzeltov: First move was easy, then Be5+ looked a bit iffy...and I wanted to get the Q out to a8+. It works, but takes too much time. Then, Be5 began to look better..in fact, the only way white can safely relieve + is Nxe5, losing his Q and the rest is mopup.
Nov-03-05   esticles: Only the second time if gotten a Thursday.
Nov-03-05
Premium Chessgames Member
  LIFE Master AJ: Good puzzle, I actually got it right ... first time in several tries!
Nov-03-05
Premium Chessgames Member
  LIFE Master AJ: Hmmm, Rook sacks on the KR2/QR2 square ... the theme for this week?
Nov-03-05   Averageguy: <Hmmm, Rook sacks on the KR2/QR2 square ... the theme for this week?> Whoa, you're fast.

<Good puzzle, I actually got it right ... first time in several tries!>Souldn't a master find this quite easily?

Nov-03-05   you vs yourself: <Averageguy: Souldn't a master find this quite easily?>

Find and replace: master with life master.

Nov-03-05   Ashram64: I was considering Be5+, but turn out it's not as forcing as i expected. Rxa2 is a much stronger move
Nov-03-05
Premium Chessgames Member
  patzer2: <Averageguy> Click on <LifeMaster Aj>'s handle and then his web site and look at some of the depth of some of his analysis. I can assure you he has no problem with this puzzle and is just having some fun with his last couple of posts.
Nov-03-05   hayton3: Also, of particular interest is his home brewed analysis where he claimed to have proved the win for Kasparov when he drew against Radjabov at Linares 2004, but I'm not sure if this analysis is still there, neither I am sure whether Kasparov had one of his inner circle call AJ to request he become part of the Kasparov analysis team.
Nov-03-05   hayton3: Hey - a night time version of AJ!!
Nov-03-05
Premium Chessgames Member
  patzer2: Wonder if anyone has ever compared finding and solving Chess combinations to music? It's not just enough to know the keys on a piano or a lot of chords, but you need to know how to integrate them at the right time (tempo) and in the right sequence to make music.

In the same sense, knowing individual tactical themes is not enough to be a good tactician in chess. You need to know how to integrate the themes, and in the correct sequence, to find winning combinations, as in today's puzzle:

30...Rxa2! (decoy)
31. Kxa2 Ra8+ (deflection)
32. Kb2 Be5+ (deflection)
33. Kc1 Ra1+ (deflection)
34. Kd2 Ra2+ (deflection)
35. Kc1 Bf4+! (deflection to pin on d2)
36. Rd2 Qc2# (mate using the pin on d2)

Nov-03-05   EmperorAtahualpa: LMAO!!
Nov-04-05
Premium Chessgames Member
  LIFE Master AJ: To be honest, I actually had a little trouble with this one.

I saw several moves almost right away. However, it was not until I saw the idea of ...Be5+!; (exploiting the pin on the diagonal from e4 to g2); that I knew I had got it right.

In my defense, another problem confused me. I ASSUMED (wrongly) that it was "Black to move and win." It also featured a blunder by White (Kh3); whereas Kh1 looked like a draw.

Another problem was also pretty complicated. I thought it might be easy on a Monday or Tuesday ... but it was far from obvious or simple. I always work from the diagram, I almost never set it up on the board. I only analyze ... or look at the problem, after I think I have the answer. And whether I get it right or wrong, I share this. (honestly)

As for the guys who always get the problem in just a few seconds ... without any analytical difficulties ... they are either a 2500+ GM ... or are being less than candid.

Nov-04-05   you vs yourself: <LMAJ: they are either a 2500+ GM ... or are being less than candid.>

May I add that they could also be using Fritz?

Nov-04-05
Premium Chessgames Member
  LIFE Master AJ: They are using something alright! (But let's not go there.)
Nov-05-05
Premium Chessgames Member
  KingG: Obviously you can't solve this in a 0.2 seconds, but considering the previous problems this week, a natural move to consider was 30...Rxa2+. The rest really isn't that difficult as long as you've noticed the pin on the queen.

Also, <LMAJ>, i think most people work from the diagram. What would be the point of setting it up on a board and moving the pieces, this won't help you in a real game.

Nov-05-05   Saruman: I find that solving these puzzles is much easier than during competition. Often I am just too nervous while playing in tournaments.
Nov-05-05
Premium Chessgames Member
  LIFE Master AJ: <Saruman>
Agreed. It can be very difficult to think in a competition. Noise, the constant ticking of clock, spectators hovering over the board... any one of a number of factors can combine to cloud your judgement or make clear thought nearly impossible.

Its one of the reasons I try to be lenient when a GM makes a mistake. Most of us are playing for fun, but his whole livlihood may be at stake.

Jul-19-08   The Ninth Pawn: From Game Collection: The Ninth Pawn's Chess Course :

In Hitech vs Kudrin, 1988 , Black uses the idea of a DECOY FOR TEMPO (check) by 30. ... Ra7xPa2+! which leads to material gains. In return for the rook, Black gets his other rook to a8 and an extra move in hand.

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Featured in the Following Game Collections [what is this?]
33. Kc1 Ra1+! 34. Kd2 Ra2+ 35. Kc1 Bf4+! forces a pin for mate
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Black to move..30 Organic beats silicon
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30... Rxa2+! quickly leads to decisive material or mate
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