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Maxim Dlugy vs Lev Alburt
New York op (1990), New York, NY USA, rd 4, Apr-??
Benko Gambit: Accepted. Dlugy Variation (A57)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Mar-12-09
Premium Chessgames Member
  ZUGZWANG67: I didn' t solve it. I prefered to go for 21. ...c2 winning a Q, when 22.Qc1 Bxf4 forces 23.Qxf4, since 23.Kxf4 Qf2+ vacuums the WK in a mating net.

What I missed is 21. ...Bxf4 22.bxc3 Qe3+ (!), when White can do nothing to avoid mate.

Kind of desapointing, since I really thought I had it done ! But I have the feeling that I' m getting farther in my learning process.

Peace!

Mar-12-09
Premium Chessgames Member
  playground player: In defense of c2, no chess player can do very wrong by coming out a Queen ahead--except on Mondays.
Mar-12-09
Premium Chessgames Member
  ZUGZWANG67: 20.Ra3 was a strange move, wasn' t it ? I don' t get it.
Mar-12-09  YouRang: Here was my "brilliant" idea:

I saw the convergence of black's Q and B on f3, next to black's K.

So, I figured I would kick the knight with 21...e5. If the knight moves (say 22.Nd3), then I have an entertaining king hunt:

22...Qf3+ 23.Kg4 f5+ 24.exf5 exf5+ 25.Kxf5 (not 25...h4 Qg5+ 26.Kh3 Qg4#) 26.Qg5+ Ke4 27.Rc4+ Nd4 (not 27...Kf3 28.Qe3#) 28.Rxd4 Kf3 29.Qe3#. Brilliant, huh? :-)

Here is what I missed:

After 21...e5, white has 22.bxc3! and if 22...Bxf4 then 23.cxb4, not only recovering his knight and removing my dangerous c3 pawn, but now his a3 rook guards against my queen attack at f3. :-(

Mar-12-09
Premium Chessgames Member
  Jimfromprovidence: <zenpharoahs> <this is a pretty nasty predicament for White. 21 ... c2
22 Qc1 e5!
23 g3 exf4
24 gxf4 Bxf4
25 Kxf4 Na2!>

I went for this line as well, but then it gets very tricky at move 24. Say white plays 24 g4 instead.


click for larger view

Now both of blacks’ passed pawns are blocked, so how does he win?

He wins with 24…Nc6!, threatening Ne5+.


click for larger view

Notice how white’s king is in non-man’s land. The King's dark flight squares are covered. The king also cannot flee to e2 or g2 because f3+, wins the queen.

The winning lines are still complex. For example, if 25 g5 Bxg5 26 Kg4 Ne5+ 27 Kxg5, then 27...Qf2 is a forced mate in nine, per the Rybka demo software.

Mar-12-09
Premium Chessgames Member
  ZUGZWANG67: < YouRang: <Here was my "brilliant" idea:

I saw the convergence of black's Q and B on f3, next to black's K.

So, I figured I would kick the knight with 21...e5. If the knight moves (say 22.Nd3), then I have an entertaining king hunt:

22...Qf3+ 23.Kg4 f5+ 24.exf5 exf5+ 25.Kxf5 (not 25...h4 Qg5+ 26.Kh3 Qg4#) 26.Qg5+ Ke4 27.Rc4+ Nd4 (not 27...Kf3 28.Qe3#) 28.Rxd4 Kf3 29.Qe3#. Brilliant, huh? :-)

Here is what I missed:

After 21...e5, white has 22.bxc3! and if 22...Bxf4 then 23.cxb4, not only recovering his knight and removing my dangerous c3 pawn, but now his a3 rook guards against my queen attack at f3. :-( >>

Ouch! ;-)

Mar-12-09  TheChessGuy: When you can shepherd the other king across the board like Alburt did, chances are good that you'll win. Here, there's really no defense to stop Black's rooks from entering the game, so White is totally lost.
Mar-12-09
Premium Chessgames Member
  agb2002: <CHESSTTCAMPS: ... A king hunt ensued after 29.Rxd5! Qxd5. It's a nice challenge to try to work through the variations.> This is what I got:

29.Rxd5 Qxd5 30.Qxf6+ Kh6 (30... Kg8 31.Qg7#) 31.Qf4+

A) 31... Kh5 32.Qh4#

B) 31... Qg5 32.Bg7+ Kh5 (32... Kxg7 33.Qxg5 ) 33.Qf3+ Qg4 34.Qd5+

B.1) 34... g5 35.Qf7#.

B.2) 34... Qg5 35.Qd1+ Qg4 36.f3

B.2.a) 36... Qh3 37.g4+ Kg5 (37... Kh4 38.Bf6+ g5 39.Qe1+ Qg3 40.Qxg3#) 38.f4+ Kh4 39.Bf6+ g5 40.Bxg5#.

B.2.b) 36... Qe6 37.g4+ Kg5 (37... Kh4 38.Qe1+ Kg5 39.h4#) 38.Kg2 Qxe3 39.h4+ Kxh4 (39... Kf4 40.Bh6+) 40.Qh1+ Kg5 41.Qh6#.

B.3) 34... Qf5 35.Qd1+ Qg4 (35... Kg5 36.h5#) 36.f3 transposes to B.2).

B.4) 34... Ne5 35.Bxe5 Qf5 36.Qd1+ Kh6 is not clear.

B.5) 34... Re5 35.Bxe5 .

C) 31... g5 32.Qf6+ Kh5 33.h3 (threatening 34.g4+ Kh4 35.Qh6#)

C.1) 33... Ne5 34.Bxe5 Q(Rxe5) 35.g4+ Kh4 36.Qh6#.

C.2) 33... g4 34.hxg4+ Kxg4 35.Qf4+ Kh5 (35... Kh3 36.Qh4#) 36.g4+ Kh4 (36... Kg6 37.Qf6#) 37.Bf5+ Qg5 38.Bxg5#.

C.3) 33... Re6 34.Qf7+ Rg6 (34... Kh6 35.Bg7#) 35.Qxd5 .

C.4) 33... Qe6 34.g4+ Kh4 35.Qf3 Qd6 36.Kg2 (threatening 37.Qg3+ Qxg3 38.fxg3#) Rxe3 37.Qxe3 .

I don’t have the time to improve on the line B.4 now. Perhaps tomorrow.

Mar-12-09
Premium Chessgames Member
  benveniste: Another in the neverending series of "why I'm a wood pusher" puzzles. I immediately saw c2 followed by e5 and got so excited by that line I stopped looking for anything better.

Thanks, chessgames.com!

Mar-12-09  Juni: I couldn't figure out the whole line...

I just though "Bxf4 and hope something comes of it".

Mar-12-09  Jim Bartle: It's surprising to me that a player like Dlugy could get all his pieces so misplaced or undeveloped to allow something like this.
Mar-12-09
Premium Chessgames Member
  whiteshark: I think if the ♔s always had to go ahead of their ♙s and ♕♖♗♘s it would have been a more peaceful game.
Mar-12-09  WhiteRook48: missed it!
Mar-12-09  Woody Wood Pusher: Yeah pretty easy still. I'm having a good week.
Mar-12-09  KingG: It took me a while to decide between 21...Bxf4 and 21...c2 22.Qc1 e5. In the end I went with 21...Bxf4 as it seemed to lead to a mating attack, but the fact that there two such relatively obvious solutions made me feel uneasy. I had the feeling that when I opened the game page I would realise I missed some defence. In the end I'm glad I saw two good moves, and picked the best one.
Mar-12-09  PinnedPiece: By move 26 it doesn't matter any more but I think 26...Rc5 is just as effective.
Mar-12-09  karrs: What is wrong with the following:
21.... cxb2
22.Qxb2 (if not, black converts to queen with threat of Rc1) Rc2 23.Qxb4 Qf2+
24.Kg4 Qxf4
25.Kh3 f5
26.Rg3 g5 threatening 27.... Qh4*
Mar-12-09
Premium Chessgames Member
  Jimfromprovidence: <karrs>
<What is wrong with the following: 21.... cxb2
22.Qxb2 (if not, black converts to queen with threat of Rc1) Rc2 23.Qxb4 Qf2+ 24.Kg4 Qxf4
25.Kh3 f5
26.Rg3 g5 threatening 27.... Qh4*>

Look at 23 Qd4 for white in your continuation.


click for larger view

Black has to exchange queens or play 23...Qa5 to avoid losing the knight.

Mar-12-09  Kinghunt: I saw 21... Bxf4 immediately as the obvious candidate, followed it up to 24... g5 and that looked easily winning, so I checked, and sure enough, it is.
Mar-12-09  nardz: I saw 21...Bxf4 22.Kxf4 Qf2 23.Kg4 f5 24.exf5 exf5 25.Kh3 Qe3 26.g3 Qh6 27.Kg2 Qd2 28.Kh3 c2 winning the queen only.

I missed there's a mate available.

Mar-13-09  Silverstrike: <khursh> I started my analysis from move 24; the black queen was on f2 from after move 22.
Mar-14-09  patzer2: For the Thursday, March 12, 2009 puzzle solution, Lev Alburt's 21...Bxf4! leads to an impressive winning pursuit (King Hunt) combination.

Alburt begins his attack in this fascinating Benko Gambit with the sacrifice 14...Bxe4! While this is most probably a best move, it's not at all clear whether it leads to a forced win. Yet the fact that the game continuation is close to best play and that the missed possibility 19...Nd3! leads to a win with accurate play, as pointed out above in <RV>'s deep Rybka analysis, suggests that the sacrifice 14...Bxe4! certainly has winning potential.

At the very least, 14...Bxe4! creates complications which make it difficult for white to survive.

Sep-29-11  Bengambit: Hey,help me here,did Maxim Dlugy loose to his own variation in this game?? It's the Benko Gambit:Accepted:Dlugy Variation (A57),i'm impressed with the move 14...Bxe4 also, so that the white King lost tempo and couldn't develope that Queen thats "Stuck" on b1 forever..........
Sep-29-11  Marmot PFL: <Bengambit> Dlugy and Alburt played several games with this line of the Benko, and this I believe was Alburt's only win. I used to play it too but it involves lots of memory of sharp positions. These days I usually just toss it back with 5 b6 (chicken, I know).
Mar-19-12
Premium Chessgames Member
  FSR: King's Gambit.
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