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Giovanni Ferrantes vs Alberto Mario Giustolisi
Bellaria-Igea Marina (1956), Bellaria-Igea Marina ITA, Aug-??
King's Indian Defense: Orthodox Variation. General (E91)  ·  0-1
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Aug-03-16  dnp: OK todicav23 you are the first......so where is your analysis you tosser
Aug-03-16
Premium Chessgames Member
  agb2002: Black has a knight for a bishop.

White threatens 43.Bxg4 Rxg4 44.Rxg4 Qxg4 45.Qxg4 Rxg4 46.f3 Rg3 47.Rf2 followed by Kh2.

Black can deliver mate with 42... Nxf2+ 43.Rxf2 Qg2+ 44.Rgxg2 (else 44... hxg2#) 44... hxg2+ 45.Kg1 Rh1#.

Aug-03-16  dnp: not too difficult, the ++ check is the killer
Aug-03-16
Premium Chessgames Member
  Gilmoy: My <Game Collection: The Swinging Gate: Push That P to 6 or 3!> pattern instantly triggered, so I smelled the possibility. Just run through the checklist.

[x] double-check on h

[x] Pg2 will-be protected (by Rg8 -- quitting the rat race, ahem)

[x] triangle mate at h1

It just remains how to get there. <42..Nxf2+ 43.Rxf2> seems to expose Black's Q-R vertical battery to White's Q-B horizontal defense -- normally we prune that away. But have we chunked a pattern that, say, <trumps> this configuration? Yes: <double-check trumps overprotection of g2>. Hence, g2 is fatally weak! We ignore g1 because we're not even going there.

Capablanca did it first, so it's a classic mate pattern. Very rare, only the 20th exemplar in my collection. (Of those, 7 were GotD, 5 were PotD, and 2 were both.)

Aug-03-16
Premium Chessgames Member
  Once: It's a common problem with pawns. They look really aggressive storming up or down the board, but they can easily get stuck. Sometimes what they need is the chance to capture something so they can move diagonally around an obstruction.

In this puzzle, black's h3 pawn is a frustrated warrior because he can't move any further down the board. He needs something on g2 to capture so he can step away from the h file with check.

Once we've worked that out, finding the queen sac on g2 isn't so hard.

Pretty puzzle.

Aug-03-16
Premium Chessgames Member
  gofer: A nice simple forced mate. I thought this was a bit too easy for a Wednesday, but as <diagonalley> missed it maybe it isn't...

<petemccabe: That is one of the most beautiful queen sacs I have seen. How have I never seen it before?>

I imagine you can find some collections of beautiful queen sacs from one of us (but not me), I saw this one again today and wondered whether you would consider this <beautiful>...

Kramnik vs Kasparov, 1994


click for larger view

<12 ... ?>

Aug-03-16  leRevenant: 3/3 this week and month. As per <Penguincw> surprisingly, I might add.
Aug-03-16  scormus: <Once> I know exactly how the pawn must have felt
Aug-03-16  rgr459: 3/3 this week, probably for the first time ever.
Aug-03-16  griga262: <Phony Benoni: 44.Kxg2 prolongs the game, since there will probably be an argument taking up some time.> LOL
Aug-03-16  zb2cr: The possibility of a double check is what makes this puzzle work. 42. ... Nxf2+; 43. Rxf2 (forced), Qg2+.

<Phony Benoni> and <YouRang> do a nice job of covering the different ways White is checkmated after each of the 3 different possible captures.

Aug-03-16  saturn2: Black sacrifices knight and queen, but the double check 44..hxg2+ is worth it.
Aug-03-16  King Harvest: Remarkable queen sac -- with three different ways to accept it. A "puzzle-like finish." I didn't think it was too easy for Wednesday. Seemed just right to me.
Aug-03-16
Premium Chessgames Member
  perfidious: < King Harvest: Remarkable queen sac -- with three different ways to accept it....>

Embarras de richesse.

Aug-03-16  Chizoad: Beautiful. Looked at Qxg1 first but finally found the really amazing Qg2+ after a minute or so. One of the prettier queen sacs I've seen. 3/3 also, but tomorrow is the day that I really begin struggling to solve the puzzles...
Aug-03-16
Premium Chessgames Member
  kevin86: The final move is one of the most brilliant in chess! Talk about an offer that can't be refused! White must take the queen- but two lead to immediate mate by double check...and the third leads to a mate in two!
Aug-03-16  BOSTER: I was far away from the solution.
Aug-03-16  todicav23: <dnp: OK todicav23 you are the first......so where is your analysis you tosser>

I tried to make Qg5 and Qf4 work in order to mate with Qh2 but white can always play Rg3.

I think black can try to exchange the rooks and the queens and play the ending Knight against the bad Bishop. At some point the Knight can get to b4 dominating the Bishop. Also, the h pawn offers a big advantage for black in that endgame.

Sunday puzzles are really hard for me.

Aug-03-16  Herma48852: A very nasty double check setup with a N+Q sac does the job:

42.. Nxf2+ 43.Rxf2 Qg2+! 44. R2xg2 hxg2+ 45. Kg2 Rh1#

Aug-03-16  drollere: this is an amusing example of pawn lock, there is only one open file and usually in these situations a N is worth far more than a B.

on the next move white threatens Bxg4, and the obvious Nxf2+ Rxf2 leaves the black Q attacked. what then?

i failed to see Qg2+ leads to three different ways (R(g)xg2 R(f)xg2 Bxg2) for recapture to fail to g2+. i could not take my eyes off Qxg1+ or Qh7.

Aug-03-16  leRevenant: Most unlike you <diagonalley: nope...> to have missed this one. The only way to sac the queen here was to get her own horse out of the way first.
Aug-03-16  King.Arthur.Brazil: I see that "is easy" and quickly catch the Nf2+ but still lose time to see Qg2+. But seen it, all is clear. Very good tatics!
Aug-03-16  MostlyWatch: <Phony Benoni: 44.Kxg2 prolongs the game, since there will probably be an argument taking up some time.>

While you're at it, why not KxK?

Aug-04-16
Premium Chessgames Member
  patzer2: For a White improvement, 22. h4 = looks good. If 22. h4 gxh4?, then 23. g5 is near winning.
Aug-05-16  TheBish: Beautiful finish! That's a chess player's dream, to have a game like this.
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