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Alexander Beliavsky vs Michael Adams
EUR-chT (Men) 9th (1989), Haifa ISR, rd 7, Nov-??
Queen's Indian Defense: Fianchetto Variation. General (E15)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
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May-06-10  David2009: Beliavsky vs Adams, 1989 White 36? Black's King is in a mating net: 36 g4+ Kxg4 37 RXh6 threatening Rg3# which can be postponed but not avoided: 37...Rb4+ 38 Ke5 and Black has no good moves. Time to check and input the position into Crafty:
=====
Same idea different moves. Both win. CraftyEGT (End Game Trainer) check:


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http://www.chessvideos.tv/endgame-t... Beliavsky vs Adams 1989, 36?

May-06-10  Patriot: <<ganstaman>: Is white really winning after move 24? Where did black go wrong?>

That's really an excellent question. 24.Qxc6! gives white the seventh rank and gives white firm control over the only open file which should be enough compensation for the pawn. I'm not sure if white is winning but stronger players would probably tell you that Qxc6 is a MUST here.

The question about where black went wrong is difficult for me to answer. Maybe 26...g5 was over-ambitious because it certainly became a liability later. The fact is that white's rooks dominate the only open file and that is difficult for black to deal with. And another strong positional maneuver was activating the white king, which is a very powerful piece in the endgame.

So it's possible black was already lost after 24.Qxc6. His only hope seemed to rest on creating another open file for his rooks.

May-06-10
Premium Chessgames Member
  kevin86: The rooks round up the king like a runaway stallion.
May-06-10  Grilo: I had actually seen another mating sequence, which ends the game faster. After 36.g4+! Kxg4(36...Kh4 37.Rxh6+ Kxg4 38.Rg3#)37.Rxh6(the fastest way to mate, or the game line 37.Rg3+)Rb4+ 38.Ke5 and 39.Rg3#


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May-06-10  Grilo: I believe that 33.h5+,generating the mating net, is more impressive than 36.g4+. Why didn't they put this position as today's puzzle?:


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May-06-10
Premium Chessgames Member
  doubledrooks: <thegoldendband> wrote: < I opted for a slightly different finish: the game continuation through move 38, and then 39. Rff3!> That's what I found; the threat of Rfg3# seems unstoppable.
May-06-10
Premium Chessgames Member
  Jimfromprovidence: It looks like black got too greedy with 35...cxb3.

He needed to play 35...g4, preventing white from doing so next move. He also has an escape square now at g5 for the king.


click for larger view

.

May-06-10
Premium Chessgames Member
  chrisowen: I spied a g4 coming next. King ate in legging it but the good web is complete. Rg3+ and mate in 5. Adams lurch giant steps going for a hillside retreat. Picked plum, crusty gage of throwing up i.e. the king. Basically Beliavsky squares off his family of rooks to wrangle him.
May-06-10  rapidcitychess: 36.g4+! Setting up a mating net.
A 36...Kxg4 37.Rxh6 And Black cannot prevent 38.Rg3#
B 36...Kh5 Rxh6+ 37 Kxg4 Rg3#
Quite simple.
Just a mere mating net.
May-06-10  Crowaholic: I thought I was good for getting the pattern in a few seconds. Then I saw that I had missed Rb4+ (inconsequential as it is, but come on…) and also that 37. Rg3+ is pointless. Adams must have felt worse though for overlooking the danger. :)
May-06-10  VincentL: "Medium".

This position looks like some we had two weeks ago. For a couple of seconds I thought that Rc1 would lead to mate, but I guessed the continuation would be different from those previous puzzles, and indeed the black king can escape the mating net by taking the white pawns.

So, next up I am thinking of 36. g4+. After 36....Kxg4 37. Rg3+ Kh4 38. Rxh6 mate.

If black tries 37..... Kh5, then white has 38. Rh3+ Kg4 39. Rff3, and black cannot prevent 40. Rfg3 mate.

So far so good.

If on move 36 black does not capture the pawn and instead plays 36..... Kh4 white continues 37. Rxh6+ Kxg4 38. Rg3 mate.

This must be it. Time to check.

May-06-10
Premium Chessgames Member
  Once: Rewind a couple of moves before the puzzle and there is an instructive series of moves from white. This is the position after 30...Rb8:


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White has the advantage of a rook on the seventh, but that is only useful if the rook can attack something. At the moment, all seems safely protected. White's objective now is to create targets before black gets his queenside pawns rolling. Let's play the movie to see how the action unfolds...

31. Rc3 White threatens Rf3+ and Rfxf7

31...Kg3 Adams moves his king away from the check on the f file. Now 32. Rf3 can be met with 32...f6 and all is still safely protected.

32. h4 White doesn't give him any peace. The latest threat is 33. hxg4 Kxg4 34. Rxf7.

32...h6 Adams defends the g6 pawn so that his king can stay guarding f7.

33. h5+


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Another powerful move from white. The black king must either grab the h5 pawn and leave the protection of f7 or go passive with a move like Kg7.

Spool on another few moves and we get to here after white has played 35. Rf6


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Here your computer will probably tell you that the position is level. Fritz 11 reckons that black can choose from moves like: 35...g4, 35...Rd8, 35...Rd6 and 35...Kg4, all of which are 0.00 or thereabouts. Fifth choice is 35...Rh8 with only a slight advantage to white of 0.29.

But white has created a position where black can lose. Apart from these five moves, all other moves for black lose in short order because of the threat of 36...g4+. The other trick that white has pulled is to manufacture this risky position just before move 40 which may well have been the time control.

Possibly short of time, Adams doesn't see the mating threat and goes down in flames as we have already seen. But it took a series of vigorous attacking moves from white to put him in that predicament.

May-06-10  ZUGZWANG67: R+p endgame. B is two pawns up. The position of the BK suggests "some kind of a" back rank mate, being given the position of the WK, which for now, blockades.

36.g4+ Kxg4 (36...Kh4 37.Rxh6+ Kxg4 38.Rg3++) 37.Rg3+ Kh5 (37...Kh4 38.Rxh6++) 38.Rh3+ Kg4 Kg4 39.Rxh6!

The sort of quiet move that is still hard to find for me! Now after 39...Rb4+ 40.Ke5, nothing can distract W from playing Rg3++, except 40...Re4+, but only temporiraly and at the cost of a whole R, as after 41.Kxe4, I think it's over.

Time to check! (GULP!)...

***

That was a cool one...!

May-06-10  ruzon: <thegoldenband: I opted for a slightly different finish: the game continuation through move 38, and then 39. Rff3! with mate in three. I'm surprised that everyone seems to have chosen the Rxh6 pattern -- a move that honestly didn't even cross my mind, though of course it's more efficient.>

I found this too, also missing Rxh6. Some of us prefer letting our opponents have the maximum number of pieces left on the board when we checkmate them, I suppose.

May-06-10  fouard: Looks pretty simple: 36 g4+

If 36...Kxg4 37 Rxa6 (Black moves) 38 Rg3++

and if 36...Kh4 37 Rxa6+ Kxg4 38 Rg3++

All forced. Not quite a Thursday level. g4 jumps right out considering the apparent desperation of White's position.

May-06-10  fouard: I see I missed the throwaway moves - oh, well. Maybe White was in time trouble, because the original game player missed the quicker combo, it appears.
May-06-10  ZUGZWANG67: I missed 37.Rxh6 too...
May-06-10  LIFE Master AJ: 36.g4+ is pretty easy, I worked out the whole line in around 2-3 minutes.
May-06-10  whatthefat: <Crowaholic: I thought I was good for getting the pattern in a few seconds. Then I saw that I had missed Rb4+ (inconsequential as it is, but come on…)>

Ha, I did the same - spotted the mating net with Rxh6, but some how had a blind spot to the possibility of ...Rb4+

May-06-10
Premium Chessgames Member
  NM JRousselle: This was too easy.

Problem would be MUCH better if the 1st move were NOT a check. Forcing lines with one branch of fewer than 5 moves should probably fall into the "easy" category.

May-06-10  wals: I also went for +#4, 37.Rxh6.

Rybka 3 1-cpu:3071mb hash :depth 21:

Black maintained an equal game from move 18 to the disaster at move 35.

35...cxb3, +#5. available was, g4, Rd8 or Rd6, 0.00, or Kg4, +0.11.

May-06-10  turbo231: This puzzle fit my eye, so I was able to solve it rather quickly. The first puzzle this week that I didn't have to grind over.
May-06-10  ajile: lol

Black got greedy eating pawns. Too bad the indigestion was fatal.

May-06-10  SufferingBruin: g4+ and victory.

I'm having one of my better weeks with the puzzles. It must be the depression.

Seriously, folks, Topalov can't win.

May-06-10  zooter: Ok, I got the theme right, but the exact moves took me about 5 minutes

36.g4+ and now if

a) 36...Kh4 37.Rxh5+ Kxg4 (only move) 38.Rg3#

b) 36...Kxg4 (best try) 37.Rxh5 and there is no stopping 38.Rg3#

The 37.Rxh5 is a killer and quiet move in line b. Time to check

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