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Boris Gelfand vs Konstantin Z Lerner
URS-ch otbor (1987), Norilsk, Aug-??
Queen's Indian Defense: Kasparov-Petrosian Variation. Kasparov Attack (E12)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 1 OF 3 ·  Later Kibitzing>
Jul-12-08  thathwamasi: First.. wow..I think this week has been pretty simple.
Jul-12-08  Jim Bartle: Not simple enough for me...
Jul-12-08  Vicao: Nice. I wondered about 44. .. b3 but then
45. Ra4 Rb8 46. Ra7 Ke8 47. Rxg7 will transpose to the game.
Jul-12-08  Hector Maluy: Good EndGame puzzle. I didn't see the solution:
44)Rg4. I was thinking on:
44)Rf3 Ke8
45)g4 b3
46)d7+ Rxd7
47)Rxb3...dang! :(
Jul-12-08  Dr. J: <Vicao><or anyone else>, how does White win after 44 ... b3, 45 Ra4 Rb8, 46 Ra7 b2, 47 Rxg7 Kc8?
Jul-12-08  BipolarChessorder: I was thinking of 44. Kd5 b3 45. Kc6 b2
46. Rf4, which threaten mate on f8

Norilsk - isn't that one of the most polluted cities in the world??

Jul-12-08  Dr. J: Hmm, can't White achieve essentially the same thing as the text by playing 44 Rb3 intending R-b1-a1? This is slower than 44 Rg4, but I don't see how Black can do anything constructive, as both R and K are tied down.
Jul-12-08
Premium Chessgames Member
  al wazir: I didn't get it. I didn't get close to getting it. I didn't get close to getting close . . .

What does white do if black plays 45...Kd8 instead of 45...Rb8 ?

Jul-12-08  zooter: why why why? What's wrong with Rf3? I didn't get half the moves
Jul-12-08  jovack: saw the solution relatively quickly
wasn't an instant spot though, but with so few pieces on the board, it definitely simplifies things
Jul-12-08  dzechiel: White to move (44?). Material even. "Very Difficult."

White surely has the dominant position here with the black king pinned up against the edge of the board. This allows white to make forcing moves that black must respond to, rather than pushing his b-pawn.

I tried to make 44 Rf3 work, but it wasn't even close. A beautiful ending by Gelfand.

Jul-12-08  MostlyAverageJoe: <dzechiel: I tried to make 44 Rf3 work>

Same here.

44. Rf3 Ke8 45. Rf1 b3 46. Ra1

and all would be OK if not for the pesky

46 ... Rb8

Jul-12-08  mpl: The point of 44.♖g4 - in contrast to variation starting with 44.♖f3 - is, that black can't play 44...♙b3 due to 45.♖a4 ♖b8 46.♖f4! . Therefore white wins a tempo (44...♔e8) to move the rook to the queen side.
Jul-12-08  zooter: Ok, after looking at the ending once again, I got most of the moves. But can somebody explain why 44.Rf3 doesn't work?
Jul-12-08  MostlyAverageJoe: <al wazir: What does white do if black plays 45...Kd8>

46.Rc5

with the idea of getting to the a-file with the usual threat.

Jul-12-08  MostlyAverageJoe: <zooter> I just did, in my first post.
Jul-12-08  Jason Frost: Amazing endamge, hard to find the concept in this one, which makes it a rather difficult problem.

Friday(Difficult)

Missed it

I looked at many moves for 20 minues, but to no avail. I guess the closest i got was a line simular to <MostlyAverageJoe> 44. Rf3?? Ke8 45. Rf5 b3 46. Ra5 Rb8 47. Rb7??(Rf5 is still a draw, but I was trying to create somthing that wasen't there) with no good continuation.

The point that I think lost me on this puzzle was the diffirance 44. Rf3 and 44. Rg4. For some reason they looked the same to me, and 44. Rf3 seemd for appealing. However, under closer inspection, it becomes plainly obvious that 44.Rf3 just looses the winning tempo, 44. Rf3 still draws, but white already has to be carefull not to loose. What a diffirance a tempo can make.

Jul-12-08  Manic: <Dr. J> For your first line beginning 44...b3 see <mpl's> post.

For your idea of Rb3-b1-a1 see <MAJ's> first post.

<BipolarChessOrder> 46...Rb6+ 47.Kxb6 b1=Q+ should be enough to win. 46...Ke8 47.Re3+ Kf8 48.Rf3+ Kg8 should also win.

Jul-12-08  Manic: And I made exactly the same mistake <Jason Frost> made when solving the puzzle =(. I had looked at 44.Rg4 but thought threatening mate first looks better.
Jul-12-08  Jason Frost: <al wazir> Or 46. g4 in the cute comp line 46. g4 Rb6 47.g5 hxg5 48. Rc7 b3 49. Rxg7 Kc7 50. h6 when both sides queen but white queens with mate 0_o
Jul-12-08  Confuse: lovely end game technique. Gelfand has some gems too : )
Jul-12-08  cyclon: 44. Rg4!!
Jul-12-08  Prugno: Impressive endgame, even more so if you think Gelfand was only 19 years old at the time.

I can't help feeling nostalgic about those days in which adjournment analysis allowed you to find this kind of finesse, which today might easily be overlooked even by top players in a rapid-play finish.

Jul-12-08  tatarch: Rook endgames are tough.
Jul-12-08
Premium Chessgames Member
  whiteshark: <44.Rg4!!> I should have known better, but I didn't get it. I have to chew over it.
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