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Andrey Lukin vs Takhir Khasanov
16th Soviet Team-ch qual group 2 (1983), Moscow URS, rd 5, Jul-21
Sicilian Defense: Najdorf Variation. English Attack (B90)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Jul-10-13  stacase: 30 Bxh7+ is a crusher. Was the doublecheck on move 31 really necessary? Well it won, I think a few other moves at that point would as well, but they have to be checks or else Black's Queen says mate from e1
Jul-10-13  The Rocket: Took me about a second and a half:) Love tactics.
Jul-10-13
Premium Chessgames Member
  whiteshark: <Boerboel Guy: I got it!> Me too!
Jul-10-13  Abdel Irada: <Was the doublecheck on move 31 really necessary? Well it won, I think a few other moves at that point would as well>

I think you mean move 32, and yes, I'm pretty sure it's necessary. Bear in mind that we must not only watch for mate on d1, but also guard against ...Qxd4, removing the bishop that is the mainstay of our attack.

As a matter of fact, the entire main line (red text) in my solution post is a series of "only" moves. Anything else lets Black off the hook.

This is what I meant about a <narrow path>.

Jul-10-13  Alex56171: Medium/Easy for CG, difficult for me. After 45 minutes I got it: 30.Bxh7+ Kxh7 31.Rxf7+ Kg8 (31...Kg6 32. Rg7#; 31...Rxf7 32. Qxf7#) 32. Rg7+ Kh8 33.Rg8+ Kh7 34.Rh8+ Kg6 (34...Rxh8 35. Qxf7#) 35.Rh6#
Jul-10-13  Skiamacher: My instinct was telling me that the Bishop sac could lead to mate.

However, the white K & Q are in vulnerable positions if the mating sequence is not forced.

OTB, with the clock ticking, I doubt that the mate in six would have been clear enough in my mind.

Great game by Lukin.

Jul-10-13  azax: Fortunately for me my tactical instinct pretty much zeroed in on Bxh7+ right at the start, and the rest of the sequence is a bit telegraphed.

30. Bxh7+ Kxh7 31. Rxf7+ Kg8 (...Rxf7 32. Qxf7#) (...Kg7 32. Rg7#) 32. Rg7++ Kh8 33. Rg8++ Kh7 34. Rh8+ Kg6 (...Rxh8 35. Qf7#) 35. Rh6#

Jul-10-13  Ratt Boy: <wingpawn: I toyed with ideas like immediate 30. ♖xf7?? but Black wins here by simply taking 30...♖xf7>

30♕d1 is a pretty good refutation of that idea, too.

Jul-10-13  GrandMaesterPycelle: The entire combination is not too easy to calculate, but the mechanism Bxh7+, Rxf7+ was fairly obvious - at least when you know it's for a puzzle.
Jul-10-13  TheaN: Wednesday 10 July 2013

<30.?>

White is already down an exchange, but has a pair of killer bishops in return. I think white did this on purpose, and after a succeful exchange sac it is now time to cash in.

Approaching a position like this is hard. Black has some activity (looking at the back rank, white's queen is en prise etc) so the white moves are limited to some extend. In these kind of positions it is always goal to check for the piece with the least activity in the current position. The rook and queen keep f7 under pressure, the dark squared bishop cuts off the black king. The light squared bishop looks at h7, but is completely unsupportive. This generates the idea of a forced move with this bishop, hence:

<30.Bxh7+ Kxh7> gets the king away of f7. The only logical followup is then <31.Rxf7+>. Of black's three replies only one is valid, as the other two lead to mate in one, 31....Kg6 32.Rg7# and 31....Rxf7 32.Qxf7# because these moves immediately invite the white queen fatally.

<31....Kg8 32.Rg7+ Kh8> because the rook is interposing the queen and bishop the doublechecks seem very strong but are lacking to mate right away. White now has a very interesting finish though.

<33.Rg8+ Kh7 34.Rh8+!> the point of the doublecheck combos, capturing removes the defense of f7: 34....Rxh8 35.Qf7#, but even more pleasing is:

<34....Kg6 35.Rh6# 1-0> the pleasing part being that by relocating, the rook is no longer blocking the bishop and queen, and deals the fatal blow. Aesthetical mate.

Jul-10-13  TheaN: I stick to what I posted, as it's completely right. Unique move sequence, beautiful mate (imo, but I guess many agree).
Jul-10-13  Nick46: better: Andrey's Luck in ....
Jul-10-13
Premium Chessgames Member
  kevin86: White mates in ring-around-the rosie method.
Jul-10-13
Premium Chessgames Member
  TheAlchemist: Great game by white, I think I've seen it before somewhere, it's interesting it didn't have any comments until now.
Jul-10-13  Maladetta: Rookworm.
Jul-10-13
Premium Chessgames Member
  gawain: I saw 30 Bxh7+ Kxh7 31 Rxf7+ Kg8 but then I over-confidently concluded that the remaining moves would be easy, too. I wrongly thought that 32 Rxe7+ would lead to mate.

The actual mating sequence is delightful. I wish I'd found it.

Jul-10-13  waustad: My result was very similar to gawain's.
Jul-10-13  BOSTER: If the player with black pieces was farsighted, and could see from the pos. on diagram


click for larger view

lack to play.
the pos.<POTD>, where utterly wild bishops destroyed his camp, he would forget his amateurish bias that knights are much better then bishops in the closed pos., he would change his unscrupulous knight for any white bishop playing ...17.Nc4. The mate with Qf7 when black rook on h8 reminds the mating pattern which is called "Epaulette mate", where another rook still in the battle, but white pawn g5 said: "Don't worry, I'm here".

Jul-10-13  Patriot: 30.Bxh7+ looks most forcing.

30...Kxh7 31.Rxf7+

31...Rxf7 32.Qxf7#

31...Kg6 32.Rg7#

31...Kg8 32.Rg7+ Kh8 33.Rg8+ Kh7 34.Rh8+ Rxh8 35.Qf7#

31...Kg8 32.Rg7+ Kh8 33.Rg8+ Kh7 34.Rh8+ Kg6 35.Rh6#

I especially like the first 31...Kg8 line.

Jul-10-13  bachbeet: I thought of the first move but didn't see it's continuation. I like that white's Q is en prise the whole time yet there is really nothing black can do about it.
Jul-10-13  dark.horse: Nice rook!
Amusing pattern.
Jul-10-13  bischopper: take on h7+ Kxh7 and Rxf7+ etc the theme sacrificy the bishop...
Jul-10-13  zooter: Seems easy enough

Bxh7 leads to mate by 30.Bxh7+ Kxh7 (only move) 31.Rxf7+ Kg8 (31...Rxf7 32.Qxf7#) 32.Rg7+ Kh8 33.Rg8+ Kh7 34.Rh8+ Rxh8 35.Qf7#

Jul-10-13  Nullifidian: 30. ♗xh7+ ♔xh7 31. ♖xf7+ ♔g8 (♖xf7 32. ♕xf7#; ♔g6 32. ♖g7#) 32. ♖g7+ ♔h8 33. ♖g8++ ♔h7 34. ♖h8+ ♖xh8 35. ♕f7# (♔g6 ♖h6#)
Aug-29-13  clement41: Nice double discovered check!
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