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Andrzej Luczak vs John Fedorowicz
Naleczow (1979), Naleczow POL, rd 3, Jul-??
English Opening: Symmetrical. Anti-Benoni Variation (A31)  ·  0-1

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 7 OF 7 ·  Later Kibitzing>
Apr-15-11
Premium Chessgames Member
  kevin86: I really nailed this one: The brilliant sequende (that white missed) was 32 ♘f6 (Δ ♕h7#) gxf6 33 ♖g4 (Δ ♕g8#) fxg4 34 ♕h7# kismet
Apr-15-11
Premium Chessgames Member
  FSR: 32.Nf6!! gxf6 33.Rg4!! fairly screams out to be played. Don't see what Black can do, unless he wants to throw away his queen with 33...Qd4+ 34.Rxd4.
Apr-15-11  benjinathan: I would have played Nf6, but it would have been purely speculative.
Apr-15-11
Premium Chessgames Member
  FSR: Wow, the Fed really lucked out. I saw the winning line within 30 seconds. Sometimes I see them, sometimes I don't. It helps that there are no variations of substance to calculate. It's just game over.
Apr-15-11  dzechiel: <<Phony Benoni> ... The good news is it's mate in three. The bad news...>

Of course, the bishop check. <duh!>

Apr-15-11  eSpade: I saw the solution -
32.Nf6! gxf6
33.Rg4! ...

What surprised me is that white lost the point because he missed the tactic :(

Apr-15-11
Premium Chessgames Member
  Check It Out: 32. Nf6
threatens mate on h7 and has to be taken,
32...gxf6
33. Rg4
again threatens mate on g8 and can't be taken due to the bishop/queen battery on the a1-h8 diagonal mating on h7. If black's DSB moves to protect g8, then mate on g7. It looks all over.

Let's see how I did.

Got it, but poor white lost.

Apr-15-11
Premium Chessgames Member
  Once: <Tacitus: Once, the white knight cannot be taken & 31...e5 played due to mate in 2: R:B+ and Qg7 mate.>


click for larger view

This is the position we would have got after 29...fxe4 30. Bxe4 Bxe4 31. Rxe4 e5.

And as <JuliusDS> has already said 32. Rxf8+ doesn't work because black can reply with 32...Qxf8.


click for larger view

And in the words of the hymn, all is safely gathered in.

<JuliusDS> On the other hand, if white recaptures with the rook (29...fxe4 30. Rxe4), we get to here:


click for larger view

And now either 30...e5 or 30...Qc5 31. Kh1 Qg5 forces the exchange of queens, white's mating attack fizzles and black keeps his extra material.

Apr-15-11  JohnBoy: I got this one right away, and in general have thought that this week was pretty easy. That said, knowing this as a puzzle means that there should be some sort of solution. I sincerely doubt that I could have whooped off the winning sequence OTB. It's a shame that white lost this, but I suppose something like this can be said about almost any game. Fedo showed some pluck.
Apr-15-11  ZUGZWANG67: B is a pawn up but W has much more in compensation. He has a mating attack against the BK. Particularly h7 is vulnerable. While observing the position I also noticed White's pressure against g7 AND g8, plus the latent threat of the WB.

32.Nf6! (threatening mate next move) 32...gxf6 (forced) 33.Rg4!

Now yhe only way B can avoid mate at g8 (beside 33...Qd4) or g7 after 33...Be7 is 33...fxg4, but 34.Qh7 mate shows the virtue of the WB.

let's see.

----------------

And he missed it.

Apr-15-11  ZUGZWANG67: Gheee! B won it!
Apr-15-11  beenthere240: I had a strong feeling that Nf6 was the right start, but the Rg4 finesse eluded me. I never saw that the f5 pawn was pinned by the mate threat on h7.
Apr-15-11
Premium Chessgames Member
  takchess: Very cool double edge position I like white chose rg4 followed by the Knight move. I calculated the correct Nf6 as well..

good choice of a puzzle.

Apr-15-11  LIFE Master AJ: Did anyone here ever subscribe to the paper, "Player's Chess News" ... back in the day?
Apr-15-11
Premium Chessgames Member
  FSR: <LMAJ> Yes, I think I got every issue ever published. Then I got the bound volumes (which I still have) and threw out the yellowing originals.
Apr-15-11  MaczynskiPratten: A remarkable example of the importance of playing moves in the right order; 32 Rg4??? turns 1-0 into 0-1. Rather tragic, when White was an IM on the verge of scoring a great upset victory over a GM...

Also shows the importance of playing the most forcing move.

I thought it seemed very easy for a Friday because it was a clear mate in 3 unless Black throws material hopelessly. But you do have to spot it ...

I wonder if White was either in time trouble or was so excited by the possibilities after "the good move" 32 Rg4 that he failed to "look for something even better".

Apr-15-11  qauz: I stared at this thing for a good 5 minutes before the mixture of ideas I had turned into Nf6!
Apr-15-11  Rosbach: Pretty move, very pretty.
Apr-15-11  wals: Rybka 4 x 64
White was struggling to keep his head above water a long way before move.32.

White errors
d 18 : 3 min
23.e5, -1.64. Best,
1. (-0.81): 23.Bd3 Be7 24.Rb1 Qa7+ 25.Kh1 Rb8 26.Nge2 Rxb1 27.Rxb1 Rc8 28.Nc1 Nf6 29.Nb3 Ng4 30.Nd1 Rb8 31.Qe2 h5 32.h3 Nf6 33.e5

2. (-0.90): 23.Kh1 Qb4 24.Bd3 Nb6 25.Rc1 Bd7 26.Nb1 a5 27.Qe2 Na4 28.e5 Red8 29.Ne4 dxe5 30.fxe5 Nb2 31.Nbd2 Nxd3 32.Qxd3 Bc6 33.Qe3 Bxe4 34.Nxe4

d 17 : 6 min :
24.fxe5, -2.55. Best,

1. (-1.64): 24.f5 Bb4 25.fxe6 Rxe6 26.Kh1 Qb7 27.Re2 Nb6 28.a3 Bxa3 29.Ba2 Bc5

(26...Nd7, - 1.55, an error by Black. Best, Kh8, or Bd6, -2.30.)

d 18 : 6 min :
29.Ne4, -3.27. Best,

1. (-0.68): 29.Ne2 Kh8 30.Nef4[] Ne5 31.Qg3[] Nxc4 32.Bd3[] Nb2 33.Bxa6 Ra8[] 34.Ng6+ Kh7 35.Nf6+ gxf6 36.Nxf8+[] Qxf8 37.Qc7+[] Qg7 38.Qxc6[] Qa7+[] 39.Rf2 Qxa6 40.Qc7+ Kg8 41.Qg3+ Kf7 42.Rxb2[] Qa7+ 43.Kh1 Rab8 44.Rxb8

2. (-0.68): 29.Nd5 Kh8 30.Ndf4[] Ne5 31.Qg3[] Nxc4 32.Bd3[] Nb2 33.Bxa6 Ra8[] 34.Ng6+ Kh7 35.Nf6+ gxf6 36.Nxf8+[] Qxf8 37.Qc7+[] Qg7 38.Qxc6[] Qa7+[] 39.Rf2 Qxa6 40.Qc7+ Kg8 41.Qg3+ Kf7 42.Rxb2[] Qa7+ 43.Kh1 Rab8 44.Rxb8

(Black, inferior move, 29...Bxe4, -1.67. Best, fxe4, -3.22.)

(Black blunder, 31...Nc5, +16.10.
Best, e5, -1.69. Rb8, - 1.38.)

d 15 : 8 min :
32.Rg4, -2.47. Best,

1. (+#14): 32.Nf6 gxf6[] 33.Rg4[] Qd4+[] 34.Rxd4[] Ne4 35.Bxe4[] Bc5 36.Qxf6+ Kg8 37.Re3[] Bxd4[] 38.Qxd4 f4 39.Bh7+[] Kxh7 40.Qd7+ Kh8 41.Rh3 Re7 42.Qxe7 Kg8 43.Rxh6 Rxc4 44.Rg6+ Kh8 45.Qg7#

Apr-15-11  Julian713: Gahhh!! I was so close...saw Nf6 AND Rg4 independently but couldn't quite figure out how to link them up. Good puzzle.
Apr-15-11  riverunner: Got it. Kiss my sagacious and equally sassy hiney, nerdwads.
Apr-16-11
Premium Chessgames Member
  Once: <riverunner: Got it. Kiss my sagacious and equally sassy hiney, nerdwads.>

Now that's an invitation that you don't get every day...

Apr-16-11  KingV93: <Once: Now that's an invitation that you don't get every day...>

not so fast...I have a suspicion that it's uttered quite frequently, in parking lots, on the freeway, in line at the shopping center...

Apr-16-11
Premium Chessgames Member
  Once: Perhaps, but usually not so eloquently expressed!
May-30-16
Premium Chessgames Member
  perfidious: <FSR....I saw the winning line within 30 seconds. Sometimes I see them, sometimes I don't....>

Don't I know it.

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