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Hebert Perez Garcia vs Ruben Andres Casafus
Buenos Aires (1977)
Formation: King's Indian Attack (A07)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Jul-14-11  LIFE Master AJ: 24.RxP/KR7!

Black can thrash around a bit - but in the long run, there is no good defense - that I can see.

Jul-14-11  LIFE Master AJ: Call this one: "Entry down an open file."

About 10-15 years ago, one of my students played a game, he was about 11 at the time.

He went to a National Scholastic tournament. Later - he showed me a game where he had opened a file (due to an exchange) right towards his King.

He was shocked when I found a mate very rapidly - fortunately for him, his opponent had missed it. Anyone who has studied the games of Morphy know that open files on a King, (esp. one caught in the center); is the quickest way to get annihilated. [ See Morphy vs Duke Karl / Count Isouard, 1858. ]

Jul-14-11  David2009: H P Garcia vs R Casafus, 1977 White 24?

24.Rxh7 looks dangerous: 24...Kxh7 25.Qh1+ Kg8 26.Qh6 f6 27.Rh1 fxe5 28.Bxe5 mates. No better is 26...f5 27.Rh1. Time to check:
====
Black declines the sacrifice and loses differently. Here's the puzzle position:


click for larger view

Crafty EGT link: http://www.chessvideos.tv/endgame-t... The EGT puts up a stout defence- enjoy finding the win!

Happy Bastille day!

Jul-14-11  LIFE Master AJ: <David2009> White wins with: 24.Rxh7! Kf8; 25.Qf3! Ke7; 26.Bxe6! Rf8; 27.Bg4! Rh8; 28.Rxh8! Qxh8; 29.e6! Nd2!?; 30.Bxd2,
Jul-14-11  David2009: <LIFE Master AJ: <David2009> White wins with: 24.Rxh7! Kf8; 25.Qf3! Ke7; 26.Bxe6! Rf8; 27.Bg4! Rh8; 28.Rxh8! Qxh8; 29.e6! Nd2!?; 30.Bxd2 > Very convincing line. I tried to win with the game line 24.Rh7 Kf8 25.Qh1 which the EGT meets with 25...Qd7!


click for larger view

and White has work to do. EGT link: http://www.chessvideos.tv/endgame-t...

Jul-14-11  Patriot: 24.Rxh7 can almost be played with impunity. I say "almost" because 24...Kxh7 needs a little calculation and 24...f5 is the only critical candidate that I see.

I spent 2 minutes on this even though 24.Rxh7 was my only candidate and I saw this candidate within a few seconds.

Jul-14-11
Premium Chessgames Member
  patzer2: <David 2009> I beat Crafty after 24.Rh7 Kf8 25.Qh1 Qd7 (your diagram above) with 26. Qh6+ Ke7 27. Qxg6 Rf8 28. Qf6+ Ke8 29. g6! .
Jul-14-11  psmith: <David2009> It is not difficult to win with the game line.

Here is how it went for me against the EGT:

24. Rxh7 Kf8 25. Qh1 Qd7 26. Qh6+ Ke7 27. Qxg6 (at this point Black could really resign) Rf8 28. Qf6+ Ke8 29. g6 Qe7 30. gxf7+ Kd7 31. Rbh1 Qxf6 32. exf6 Ra8 33. Re1 Kc6 34. Rxe6+ Kb7 35. Bd6 Nd7 37. Re7 Kc6 38. Rxd7 ... need I go on?

Jul-14-11  psmith: Ah, I see <patzer2> and I think alike.
Jul-14-11  CHESSTTCAMPS: In this closed middlegame position, white's bishops have limited value for attack, but the semi-open h-file and the space advantage on the kingside give white a winning position. Experienced players will find the initial breakthrough without giving it much thought.

24.Rxh7! gives black no time to engineer an escape to the queenside:

A) 24.... Kxh7 25.Qh1+ Kg8 (Kg7 Qh6+) 26.Qh6 f6 27.Rh1 Kf7 28.Qh7+ Kf8 29.gf Qxf6 30.ef and white mates in two more moves.

A.1) 26...f5 27.Rh1 Kh7 28.Qh7+ Kf8 29.Qh8+ Ke7 30.Rh7#

B) 24... Kf8 25.Bh5!! (OK, this bishop does have some attacking value!) gxh5 26.Rxf7+! Kxf7 27.Qxh5+ Ke7 28.Qh7+ Kf8 29.g6 Qd7 30.Qh8+ Ke7 31.Qf6#!

B.1) 25... Ke7 (or Qd7) 26.Bxg6 wins.

B.2) 27... Kg8 28.Rh1 forces mate

I discovered B somewhat by accident, visualizing the Q on b1 and thinking that white had 27.Qh7+. After realizing the mistake, I was about to switch to the pedestrian 25.Qh1 when I noticed that 27.Qh5+ works just as well.

Time to see how the game played out....

Jul-14-11  CHESSTTCAMPS: <LMAJ> and other kibitzers have pointed out alternative ways that white can win after black declines the rook with 24... Kf8. Following is another winning move illustrated with <Jim's> award-winning 3-diagram presentation method.

After 25.Bh5! the following position is reached:


click for larger view

Crafty EGT actually defends this position with 25... Rb7 26.Bxg6 fxg6 27.Rxb7 which white wins easily with a modicum of attention. If black accepts the bishop, play continues 25... gxh5 26.Rxf7+! Kxf7 27.Qxh5+


click for larger view

There are alternative paths from here, but one pretty finish is 27... Ke7 28.Qh7+ Kf8 29.g6 (Rh1 also wins) Qd7 30.Qh8+ (or Bh6+) Ke7 31.Qf6#


click for larger view

Jul-14-11  LIFE Master AJ: <Chessttcamps> I agree! :)
Jul-14-11  bengalcat47: Black's conduct of this game leaves much to be desired. He exchanged off his light-squared bishop for the knight at f1 without any good reason. Black's "well posted" knight at g3 doesn't really accomplish anything except forcing a rook to move. While most of Black's pieces are off gallivanting on the Queen side his poor King must face the enemy alone.
Jul-14-11  LIFE Master AJ: I agree that Black's play (here - in this game) was very poor ... his opening of the h-file was most unwise.
Jul-14-11  LIFE Master AJ: One person sent me an e-mail and asked me to annotate this game - I would say someone else will analyze the variations ... Black's play here is very lacklustre.
Jul-14-11  castledweller: this one seemed, to me, like a "monday"
Jul-14-11  DarthStapler: Got it
Jul-14-11  Fezzik: Rxh7 was easy to find, and easy to play in a blitz game. In a serious game, it takes tremendous confidence to sac the rook in this manner when Black has many moves at his disposal.

Nice choice today, chessgames.com!

Jul-14-11  scormus: Why do I read these posts? I was quite satisfied with 24 Rxh7. If 24 ... Kxh7 B loses in short order, a quick clean death fitting for a warrior. If anything else then W should win sooner or later. Should've quit while ahead.

I looked at the game and saw, hell 24 ... Kf8 and went straight for 25 Qh1 influenced by the straight win after 24 ... Kxh7. Easy, right?

Had a real hard time and didnt find a forced win against all the possible 25 ... moves.

All the time 25 Qf3 was staring at me. Thats 2 midweek puzzles I've messed up. Good thing I'm devoting the weekend to my family

Jul-14-11  psmith: <scormus>: Don't feel bad, 24...Kf8 25. Qh1 DOES win after all.

Devoting a weekend to your family: excellent idea!

Jul-14-11  wals: Rybka 4 x 64 : d 18 : 1hr 33min :

1. (8.19): 24.Rxh7 Kf8 25.Qh1 Qc8 26.Qh6+ Ke7[] 27.Qxg6 Kd7 28.Rxf7+ Kc6 29.Rf6 b4 30.Bxe6 Rxe6 31.Rxe6+ Kb5 32.axb4 Ka6 33.Rh1[] Qb7 34.bxa5 Nxa5 35.f3 Kb5 36.Rh7 Qc8 37.Ra7 Nb3 38.Ree7 Qc6 39.Qxc6+

Black erred-

19...Bxg5, -0.17. Better, h6, -0.70.

21...Na8, 0.69. Better, b4, -0.25.

23...Re8, +8.19. Better, h5, +2.05.

Jul-14-11  ColeTrane: I know inherently to capture on h7, but beyond that things get fuzzy . . . . can't . . . see . . . future.....need water . . . .& . . . .end game strategy . . . . ahhhhhhh........
Jul-14-11  WhiteRook48: I had 24 Rxh7 Kxh7 25 Qh1+ Kg8 26 Qh6, and probably would have played 25 Qh1 anyway in response to 24...Kf8
Jul-14-11  newton296: just smoked egt!

had 5 pawns to bare king in about 12 moves! just gotta barrel down the h file after moving a pawn to g7 and black has to give up a rook to prevent queening at h8!

landed about 5 combos like this just today ! on playchess.com

Jul-15-11
Premium Chessgames Member
  kevin86: This breakthrough is obvious and not that difficult:sac the rook at h7,then enter with the queen.
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