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Krunoslav Hulak vs Dragan Barlov
Pucarevo Zonal (1987), Pucarevo BIH, rd 4, Mar-??
King's Indian Defense: Normal. King's Knight Variation (E60)  ·  1/2-1/2

ANALYSIS [x]

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Kibitzer's Corner
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Dec-17-10  lost in space: I was looking for 29. Rxf7 (lead to a win for Black) and 29. e6 and thought this is the winning move.

After reading the post here and the knowledge, that 29. e6 is a draw:

What is wrong with 29. Kxg2? Is this move not keeping the blalance? Maybe less elegant?!

Dec-17-10
Premium Chessgames Member
  benveniste: <lost in space>: Kxg2 appears to give black a slight advantage:

29. ♔xg2 ♕c6+
30. ♔g1 ♖xb2
31. ♕d4 ♖b7
32. ♖xb7 ♕xb7
33. ♕xc4


click for larger view

Perhaps someone with better knowledge of endgames can comment whether black should win this. But at best, it's a more mentally taxing draw for white than 29. e6.

Dec-17-10  lost in space: Hi <benveniste>,

I agree that Black has a slight advantage after 29. Kg2.

But I would expect from a puzzle that the solution is significantly better than all other moves.

At least without the help of a computer I can not find this significant difference, beside that 29. e6 is more forced and 29. Kg2 is leading (unforced) to a more or less equal position with a black edge (from my perspective not enough to win)

Dec-17-10
Premium Chessgames Member
  beenthere240: I thought that white was in trouble. If 29. Kxg2 Rxb2 30. Qxb2 Qxd7 and white is looking at 2 nasty passed pawns. Maybe white has something better than 30. Qxb2.
Dec-17-10
Premium Chessgames Member
  kevin86: I answered the first move---but never even knew the game would be drawn.
Dec-17-10  Sololoy: Following the game with exchange of rocks until move 30, the line should be:

31 Qd6 (heading for e7 and mate on the 7th row)

a).-
31 .. Qc6 then
32 Qxb8+ and so on

b).-
31 .. Qf8 then
32 Qxe6+ Kh8
33 Qe5+ Kg8
34 Kxg2

leads to the position given by <gofer> but without black's e6

c).-
31 .. Qe8 then
32 Re7 and black must give his queen for a rock...

Can you verify these lines?

Dec-17-10  eblunt: 33 .... e5 is an improvement for black IMO, it blocks the mate threat, and after 34 ♕a7 ♕xd7 35 ♕xd7 the pawn on e5 prevents the perpetual, and white cant stop the b2 pawn
Dec-17-10  doubledrooks: I examined several lines after 29. e6, including 29...Rd8, 29...Rf8, 29...Rxe6, and 29...fxe6, with white winning in some and others unclear.

After 29...fxe6 30. Qd4 e5 31. Qd6 I overlooked <dzechiel>'s 31...Qc6, looking only at 31...Rb6 32. Qxb6 Qxd7 33. Qxg6+ Kf8 34. Kxg2.

Dec-17-10  M.Hassan: "Difficult" White to play 29.?
White is a Bishop down.
IMO, the following line(s) may apply

29.e6
Black has a choice to take or not to take the pawn. First, if Black doesn't take the pawn and wants to save the Bishop on g2

29..............Bc6
30.exf7+ Kh8
31.Qd4+ Kh7
32.f8=Q+ Bxd7
33.Qg7#

Line 2, if the pawn is taken

29...............fxe6
30.Kxg2 Qc6+
31.Kg1 Qf3
32.Qd4 Qf8
33.Rd6 Rb7
34.Rxa6 Rbd7
35.Qxc4 Kh7
36.Rexe6 Rxe6
37.Rxe6 Rxe6
38.Qxe6
And after exchanges, White is stronger.

Dec-17-10  starkidaway: <dzechiel> & <gofer>

On your lines after 29. e6 fxe6 30.Qd4 e5 31. RxP (instead of 31.Qd6 since you guys pointed out that 31...Qc6 stops all threats) 31...RxR ( I think this is forced) 32.QxR QxR 33.QxR+ K moves 34.KxB and it should be a draw, right?

Also: does anyone knows how to add those diagrams? Thanks in advance.

Dec-17-10
Premium Chessgames Member
  agb2002: White is a bishop down.

Black threatens 29... Bxh3 and 29... Rxb2 30.Qxb2 Qxd7.

The black castle looks weak and unprotected. This suggests 29.e6:

A) 29... Rxe6 30.Rxe6 fxe6 (30... Bxh3 31.Rxg6+ fxg6 [31... Kh7(8) 32.Qh6#; 31... Kf8 32.Qh6+ Ke8 33.Rxf7 Qc5 34.Qh7 + -] 32.Qd5+ Kh8 33.Qe5+ Kg8 34.Qg7#) 31.Qd6 (31.Qd4 Qf8 32.Qe5 Bd5 33.Qg5 Ae4)

A.1) 31... Qe8 32.Re7

A.1.a) 32... Qf8 33.Qxe6+ Kh8 34.Kxg2 with the threat 35.Rf7.

A.1.b) 32... Qxe7 33.Qxe7 Bxh3 34.Qf6 Bf5 35.g4 Rf8 36.Qg5 Bd3 37.Kg2 unclear. The white king might try to use the dark squares to invade Black's field.

A.1.c) 32... Qc8 33.Qe7 Qxd7 34.Qxd7 transposes to A.1.b.

A.2) 31... Qxd7 32.Qxd7 Bxh3 33.Qd4 seems to improve upon A.1.b.

A.3) 31... Bxh3 32.Qe7 Qxd7 33.Qxd7 Rxb2 34.Qc8+ Kf7 35.Qxc4 a5 36.Qc7+ Kg8 37.Qxa5 and I'm not sure White can win.

B) 29... fxe6 30.Rd1

B.1) 30... Rf8 31.Qh6 Rf7 32.Qxg6+ and mate soon.

B.2) 30... Qc5 31.Qh6 Qf8 32.Qh7#.

B.3) 30... Bf3 31.Qh6, etc.

C) 29... Rf8 30.Qh6 (30.e7 Re8 31.Rd1 Bxh3 32.Rd8 Qc7 33.Rxe8+ Rxe8 34.Qd8 Qc6 35.Qxe8+ Qxe8 36.Rd8 Bd7 - +)

C.1) 30... Bxh3 31.exf7+ Rxf7 32.Qxg6+ and mate soon.

C.2) 30... Qxd7 31.exd7 Bxh3 32.Qd2 Rfd8 33.Re7 and White seems to be better (33... Kf8 34.Qd6 Rb6 35.Re8+ Kg7 36.Qxb6).

I think I would try 29.e6.

Dec-17-10  starkidaway: <M.Hassan>
On you line after
29........fxe6
30.Kxg2 Qc6+
31.Kg1 Qf3 ( I think this is bad for black since it leaves the h6 square unoccupied for the white queen to slip though and with mating threats--example:)

32.Qh6 Qf6 (forced)
33. Re3 ( threating 34.Qh7+ and Rf3 next) Re7 (forced again) 34. RxR QxR
35.Qxg6+ and black position collapses.

Instead I was thinking that after:

29........fxe6
30.Kxg2 Rxb2!

Now, if white plays:

A)

31. Qd4 Qc6+
32. Kg1 e5

Game could continue

33.QxR QXR
34.Rxe5 RxR
35.QxR Qc6 and black is winning.

Or going for a more draw-ish continuation with B)

31. Qh6 QxR
32.Qxg6+ Kf8
33.Qf6+ Qf7
34.QxR and I think black should be able to hold.

Dec-17-10  doubledrooks: <agb20002>: after 29. e6 fxe6 30. Rd1 in your line B, 30...Rb7 seems like a good defensive try for black.

For example: 31. Kxg2 Rxd7 32. Qxd7 Qxd7 33. Rxd7 Rb8.

Dec-17-10
Premium Chessgames Member
  Phony Benoni: <starkidaway: Also: does anyone knows how to add those diagrams? Thanks in advance.>

The diagrams are made using FEN; here's a help page:

FEN Help Page

Dec-17-10
Premium Chessgames Member
  agb2002: <doubledrooks: <agb20002>: after 29. e6 fxe6 30. Rd1 in your line B, 30...Rb7 seems like a good defensive try for black. For example: 31. Kxg2 Rxd7 32. Qxd7 Qxd7 33. Rxd7 Rb8. >

You're right, Black ends up better in your line.

Actually, 30.Rd1 is a blunder because of 30... Bd5. I thought I could improve upon 30.Qd4, which seems to achieve nothing more than draw after 30... e5 31.Rxe5 Rxe5 32.Qxe5 Qxd7 33.Qxb8+ Kh7 34.Kxg2.

Dec-17-10  starkidaway: <Phony Benoni> Thanks a bunch. I didn't realize that you could directly input FEN code in the comment block.
Dec-17-10
Premium Chessgames Member
  patzer2: For today's Friday puzzle, I can't see what's wrong with simply 29. Kxg2 =.

Playing it with Frtiz, after 29. Kxg2 Rxb2 30. Qd4! Qc6+ (not 30...c3?? 31. e6! ) 31. Kg1 Rbb8 32. Rd6 Qf3 33. e6 Rxe6 34. Rdxe6 fxe6 35. Qxc4! Rf8 36. Qxe6+ Kg7 37. Qa2 to = and White's just fine.

However, I suppose 29. e6! = is just as good, but it's not so clear to me that it's necessarily any better than simply playing the obvious 29. Kxg2 =.

Dec-17-10  WhiteRook48: 29 e6
Dec-17-10  M.Hassan: <starkidaway: On your line after.....> Thank you for your detailed analysis. I hav not had time to go through it. I will later on and will probably learn from it. If any comments, I will post it on "Hulak vs Barlov" game.
Dec-17-10  muralman: E6 was my answer, but I have to say too, I am disappointed we are looking for a draw.
Dec-17-10  wals: Dipped out on that one. Went for 29.Kxg2.( Evidently that was O.K too.)

Rybka 4 x 64 blunders only

What an amazing game. Not a blunder.
From 22.Nc6 to 38...Kh6, the rating
was =0.00. Well done chaps.

A couple more versions.

Analysis by Rybka 4 x64:
depth: 26 : 60 min :

1. = (0.00): 29.e6 Rxe6 30.Rxe6 fxe6 31.Kxg2 Rxb2 32.Rd8+[] Kh7[] 33.Rd7+ Kg8[] 34.Rd8+[] Kh7[] 35.Rd7+ Kg8[] 36.Rd8+[] Kh7[] 37.Rd7+ Kg8[] 38.Rd8+[] Kh7[] 39.Rd7+ Kg8[] 40.Rd8+[] Kh7[] 41.Rd7+ Kg8[] 42.Rd8+[] Kh7[] 43.Rd7+ Kg8[] 44.Rd8+[]

2. = (0.00): 29.Kxg2 Rxb2 30.Qd5 Qa8 31.Qxa8[] Rxa8 32.e6 fxe6 33.Rxe6 Rf8 34.Rxg6+ Kh8 35.Rh6+ Kg8[] 36.Rg6+ Kh8 37.Rh6+ Kg8[] 38.Rg6+ Kh8 39.Rh6+ Kg8[] 40.Rg6+ Kh8 41.Rh6+ Kg8[] 42.Rg6+ Kh8 43.Rh6+ Kg8[] 44.Rg6+

Dec-18-10  M.Hassan: <starkidaway: 35.Qxg6+ and Black position collapses> 35...........Qg7
36.Rxe6 QxQ
37.RxQ+
I do not see colapse for Black in this position.Am I right or missing something?

<Instead I was thinking that after:> I agree with your lines A & B
Thanking again for your analysis

Dec-18-10  knight knight: Black's a bishop ahead, with probable last move 28...Bxg2. And probable white 28th move 28. e5. This combined with the knowledge there's a puzzle move suggests white's intention was to play 29. e6, attacking f7. Possible replies:

a) 29...fxe6 30. Qd4 e5 31. Qd6 Rb6 32. Qxb6 Qxd7 33. Qxg6+ Kf8 34. Kxg2 is a better endgame for white due to black's isolani

b) 29...Rxe6 30. Rxe6 fxe6 31. Qd4 e5 32. Qd6 Rb6 33. Qxb6 Qxd7 34. Qxg6+ Qg7 35. Qe8+ Qf8 36. Qe6+ Qf7 37. Qc8+ Kg7 38. Kxg2 a better endgame for white due to black's isolani

ci) 29...Rf8 30. exf7+ Rxf7 31. Rxf7 Kxf7 32. Kxg2 with the better endgame

cii) 29...Rf8 30. exf7+ Kh8 31. Qd4+ Kh7 32. Re8! Qc6 33. Rxb8 winning

d) 29...Bxh3 30. exf7+ Kf8 31. fxe8=Q+ winning easily

Think I'm missing something, time to check...

Dec-18-10  knight knight: Ah, 29. e6 fxe6 30. Qd4 e5 31. Qd6 Qc6! Poor effort from me today anyway.
Dec-18-10  starkidaway: <M.Hassan>
Well, intuitively, I concluded that black's position collapses since all his pawn are disconnected and very hard to defend, his king is all exposed, and white has mating threats--that is if white does not decide to exchange queens as you did in your line. Example if 35.....Qg7
36.Qxh5 ( instead of Rxe6)


click for larger view

And it's very hard for black to defend here.White's pawn can't be taken, ex;

36........Rxb2
37.Rxe6 wins since both Rg6 & Re8+ can't be stopped.


click for larger view

And if
37..........Qf7
38. Qg5+ Kf8
39.Rf6 wins also

The question is, what should black do? Blacks rook can't leave the back rank since that allows white to play Qe8+ and Qxe6 and winning another pawn. And if black moves her queen out of g7 then that allows Qg4+ followed by either Qxc4 Or Rxe6 (depending where black decides to place her queen). Anyway, if you find a suitable defense for black after 36. Qxh5 that I don't see, it would be cool.

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