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Lubomir Ftacnik vs John Nunn
Vienna IBM Open (1986), Vienna AUT, Jan-??
King's Indian Defense: Orthodox Variation. Classical System Misc. Lines (E98)  ·  1-0



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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
May-14-16  AlicesKnight: If 31.... Rf6, without opening the White QB diagonal, does White continue 32.Rg2 and trap the BK, or is there something more decisive?
May-14-16  Cheapo by the Dozen: Unlike <diagonalalley>, I do not think this is one of the positions in which I'd have channeled my inner Rudolph Spielmann and sacrificed on faith.
May-14-16  Al2009: Ftacnick was surely in zeitnot, because he could play 33. Nxg6! (why 33. Rf2?) with no fear for 33...Qxf3+

After 33...Qxf3+ 34. Rf2 Qd3+ (34...Qd1+ 35. Be1 Kxg6 36. Rxh6+! Nxh6 37. Qxd6+ Kh5 38. Qe5+ leads to mate) 35. Kg1 Qd1+ 36 Kg2 Qg4+ 37. Kf1 Qxg6 38. Rg2 Qxe4 (there are no more checks after 38...Qf7+ 39. Kg1 and then 39...Bd7 40. Rhg5! ) 39. Rxh6+! Nxh6 40. Rg7+ Kh8 41. Qxh6#

Premium Chessgames Member
  whiteshark: As it turns out, the commitment is a bit of an issue...
May-14-16  Ayaend: <3 25.Bf8! <3
May-14-16  leRevenant: <nasher: What was the reason white played 33 Rf2 ?> To protect the pawn on f3 and free up the knight to hop into the fray.
May-14-16  morfishine: "Nunn Too Soon"

I got the first two moves but not 33.Rf2

Do I get a Lolli-pop?


May-14-16  stacase: Getting the first four moves on a Saturday puzzle works for me.
May-14-16  ndg2: What if black plays 32...Rg5 instead of Qf7?

click for larger view

Then we have this cute sequence of sacs 33.Rxh6+ Nxh6 34.Qxh6+ (not only Mondays have queen sacs!) Kxh6?? (Kg8 ) 35.Rh2+ Bh3 36.Rxh3+ Rh5 37.Rxh5#

click for larger view

May-14-16  znsprdx: wow I'd never considered giving up the long diagonal control

32. Rf2 beyond me = but it worked

Premium Chessgames Member
  drollere: black played a queen rook down the whole game.
May-14-16  RandomVisitor: Black has defensive possibilities with 28...Qf6 that make the earlier move 27.Ndxf4! much better for white.
May-14-16  RandomVisitor: 21...h6 followed by 23...hxg5 have to be considered losing ideas. Better for black was something like 21...Bd7 followed by activating the sleeping queen rook 22...Rc8.
Premium Chessgames Member
  patzer2: For today's Saturday puzzle position, I went with my instinct and played 31. Nexf4 exf4 32. Nxf4. I didn't see a forced win, but I figured Black's exposed King and the pressure White could quickly bring to bear on the weakened Kingside was easily worth giving up a Knight for two pawns and the attack.

An instructive, strong move which I missed here is 33. Rf2! , which demonstrates how White precisely builds up his attack while walking a fine line between exchanging material and preparing the attack.

The purpose of 33. Rf2! is to prepare to capture the Rook on the next move with a much stronger attacking position.

In addition to <RV>'s improvement 21...Bd7 =, activating the Queen side pieces, instead of 14...Neg8 I slightly prefer 14...a3 as in A Gutov vs I Saric, 2010, Gelfand vs Kasparov, 1990 and J S Morgado vs R G Alvarez, 2000.

May-14-16  morfishine: <ndg2> Thats gorgeous
Premium Chessgames Member
  agb2002: White has a bishop and a knight for the bishop pair.

The best defenders of the black king seem to the pawns on e5 and f4 because they hinder the maneuvers of the white pieces. This leads to consider 31.Nexf4:

A) 31... exf4 32.Nxf4

A.1) 32... Rg5 33.Rxg5 Qxg5 34.Rg2

A.1.a) 34... Qxf4 35.Rg7+ Kh8 36.Rf7+ and mate soon.

A.1.b) 34... Qe7 35.Rg7+ Qxg7 36.Bxg7 Kxg7 37.Qg3+ with more or less balanced material but a dangerous initiative. For example, 37... Kf6 38.Qg6+ (38.Qxg8 Bh3+ - +) 38... Ke7 39.Qh7+ Kf6 (39... Kf8 40.Ng6+ Ke8 41.Qxg8+ Kd7 42.Qf7+ Kd8 43.Qe7#) 40.Nh5+ Kg5 41.Qxg8+ Kxh5 42.Qf7+ Kh4 (42... Kg5 43.Qe7+ wins the d-pawn at least) 43.Qf6+ Bg5 44.Qxd6 looks winning.

A.2) 32... Bd7 33.Nxg6 Kxg6 34.Rg2+ Kf7 (34... Bg5 35.Rhxg5+ wins decisive material) 35.Rxh6 Nxh6 36.Rg7+ wins decisive material.

A.3) 32... Rg7 33.Bxg7

A.3.a) 33... Kxg7 34.Rg2+ Kf7 35.Rxg8 Kxg8 36.Rxh6 with two extra pawns and a winning attack (36... Qg7 37.Rg6).

A.3.b) 33... Qxg7 34.Rg2 Qf8 35.Rxg8 Kxg8 (35... Qxg8 36.Rxh6+ Kg7 37.Rg6+ wins) 36.Rxh6 with the same conclusion as A.3.a.

A.4) 32... Rf6 33.Bxf6 Qxf6 (33... Nxf6 34.Rxh6+ + - [R+2P vs B] and a winning attack) 34.Rg2 Ne7 (34... Qxf4 35.Qxf4 wins; 34... Bd7 35.Rg6 Qf8 36.Rxg8 as in A.3) 35.Rg6 Nxg6 36.Rxh6+ Kg7 37.Rxg6+ wins decisive material.

B) 31... Rf6 32.Rg2 probably ends up transposing to A.4.

Premium Chessgames Member
  agb2002: <morfishine: <ndg2> Thats gorgeous>

I fully agree!

May-14-16  mel gibson: How come I don't get some Tuesday puzzles but I saw this straight away?
May-15-16  Al2009: <patzer2>

33.Rf2? is just a blunder, it is not a strong move.

Read better and see my analysis above after

33. Nxg6!

May-15-16  Moszkowski012273: I disagree,, 33.Rf2... was pretty awesome.
May-16-16  Al2009: <Moszkowski012273>

You can disagree, but you are uncapable to show me a good analysis, supporting your idea. Sorry, chess is like math, it is not simply "opinions", it is analysis and calculations. That's the same with <patzer2>, patzer2 will always remain a patzer, because if you want to play chess at good levels, you have to make accurate calculations and analyse the variations...

May-16-16  Moszkowski012273: I looked at your analysis it's quite faulty, perhaps you should double check before posting. But good luck with that whole "judge and jury" thing you got going on here.
Premium Chessgames Member
  AvidChessMan: I can't explain why, but I really liked 31. Nef4 ef4 32. Nf4. I could not see past that. And, I could not see any better options for white. The only reason I can think for 33. Rf2 (which I agree is not a sharp move) is to protect the b pawn and prevent the f4 knight from a future pin, in case of a pawn exchange, vies-a-vie white bishop to g4.
May-17-16  Moszkowski012273: And yet, it IS, a very sharp move.
Oct-30-18  cunctatorg: 20. Bd1!?!

23. Ba4!! and 25. Be8!!

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