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Hector Leyva vs Vivian Ramon Pita
Havana (1994), rd 6
Gruenfeld Defense: Exchange. Modern Exchange Variation (D85)  ·  1-0



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Kibitzer's Corner
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Sep-01-09  whiteshark: An appealing <22.Qxf7+> ends the game.
Premium Chessgames Member
  agb2002: Black is a pawn ahead and threatens 22... Q(R)xb5. However, some dark squares near the black king are under White's control. This suggests completing that control by pressing along the light square diagonal a2-g8. Since 22.Bc4 loses miserably to 22... Rxd5, one can try 22.Qxf7+:

A) 22... Kxf7 23.Bc4+ Rd5 24.Bxd5#.
B) 22... Kh8 23.Qxe8+ Nf8 (23... Bf8 24.Bxd7) 24.Qxf8+ Bxf8 25.Bf6+ Kg8 (25... Bg7 26.Rxc8+ Qd8 27.Rxd8#) 26.Bc4+ and mate in two.

Sep-01-09  newton296: missed Q sac , but figure Ng5 is easy win for white also so gave myself the solve !

Analysis by Fritz 10:

1. (6.93): 1...Ne5 2.Bxe8 Bd7 3.Bxd7
2. (25.73): 1...Rd8 2.Bxd8

Sep-01-09  CHESSTTCAMPS: White is down a pawn, but the white forces are well-placed and cohesive, whereas key black pieces (especially Bc8 and Re8) lack mobility and f7 is weak. White's Bb5 is under attack, but white is strong enough to ignore the threat:


This should force resignation immediately. If 22... Kxf7 23.Bc4+ Rd5 24.Bxd5#; otherwise 22... Kh8 23.Qxe8+ Nf8 (Bxf8 24.Bxd7 wins everything) 24.d7 is a slaughter.

Sep-01-09  JG27Pyth: Fun. In the completely academic improvement department -- Dzechiel. I think I can improve your line:

Instead of 27.Rxf8+ 27.d7! which either wins rook for pawn or the pawn promotes, meanwhile maintaining the pin on the B.

Sep-01-09  johnlspouge: Tuesday (Easy):

H Leyva vs V Ramon, 1994 (22.?)

White to play and win.

Material: Down a P. The Black Kg8 has 1 legal move. A forcing sequence mates or wins material, so further analysis is unnecessary.

Candidates (22.): Qxf7+

22.Qxf7+ Kxf7 [Kh8 23.Qxe8+ wins a R, to begin]

23.Bc4+ Rd5 24.Bxd5#

Sep-01-09  MaczynskiPratten: The first Q sac is fairly obvious, but I enjoyed <MostlyAverageJoe>'s line with the second Q sac (in the Kh8 line) and a similar but different mate with the two Bishops!

Also just for completeness; if 23 Qxe8+ Bf8 (instead of Nf8). Now 24 Qxf8+? Nxf8 25 Bf6+ Kg8 26 Bc4+ fails to Ne6! But 24 Bxf8 seems to leave Black helpless.

Sep-01-09  YetAnotherAmateur: 22. Qxf7 leaves black with 2 losing options:
A)22. ... Kxf7
23. Bc4+ Rd5
24. Bxd5#

B)22. ... Kh8
23. Qxe8+ Bf8
24. Bxf8 Nf6 (Nxf8 Qxf8#)
25. Qf7 Nh5
26. Bg7+ Nxh7
27. Qf8#

Black has several other options in line B, but they all lead to mate even sooner.

Sep-01-09  Eisenheim: MAJ - great variation find.
Sep-01-09  Patriot: Initial candidates: Qxf7+

22.Qxf7+ Kxf7 (22...Kh8 23.Qxe8+ ) 23.Bc4+ Rd5 24.Bxd5#

There are many ways to finish off black after 22...Kh8 23.Qxe8+, but I especially like the finish <MostlyAverageJoe> and <agb2002> gave.

Sep-01-09  alphee: All comments already posted.
Sep-01-09  JonathanJ: <newton296> i don't think that Ng5 is an easy win against a 2200+ player if you aren't even able to find this queen sac :P
Sep-01-09  muralman: I could not figure Mondays for anything, and that was after I aced Sunday's puzzle. Lucky for my ego, this Tuesday puzzle was transparent to me. I worked it out to checkmate.
Premium Chessgames Member
  kevin86: If black declines the sacrifice,he gets chopped up and mated-if he accepts,he is mated immediately.

Either it's the hatchet or sudden death.

Sep-01-09  YouRang: I invested so much time in convincing myself that 22.Ng5 was winning that I didn't bother looking for anything spiffier. But 22.Qxf7+ is certainly spiffier.

However, I am satisfied that 22.Ng5 also wins, threatening Qxe7+ Kh8 and Qxe8+. The only stubborn defense for black appears to be 22...Ne5, and then we have 23.Bxe8! Rxd5 24.Rxc8, and there is little that black can do to effectively stop Bxf7#.

It seemed a bit too convoluted for a Tuesday. I should have been more suspicious. :-|

Sep-01-09  jsheedy: Qxf7+ and mate in 2.
Sep-01-09  ZUGZWANG67: The position of the BK is strange. It seems safe at first glance but it' s not. Thus, 22.Qxf7+ Kh8 (22. ...Kxf7 23.Bc4 mates on 24) 23.Qxe8+ Bf8 (or 23. ...Nf8) 24.Bxf8 and mate soon.

Time to check! (GULP!)

Ok. Let' s see other' s posts...

Sep-01-09  noendgame: <Not the discovered check 25 Be7+? because of 25...Qxe8.> 25 Bg7+ Kxg7
26 Rb7+ Kh6
27 Qf8+ Kh5
28 Rh7+ Kg4
29 Rh4#

26 ... Q or Bd7 delays only

Sep-01-09  A Karpov Fan: Easy as taking candy from a baby, a small one with a limp wrist even.
Premium Chessgames Member
  fm avari viraf: Though, easy but one would be tempted to play 22.Bxd7 Rxd5 23.Bxe8 & will soon realise the fallacy & will embark on another plan to demolish Black's achilles heels with 22.Qxf7+ Kxf7 23.Bc4+ Rd5 24.Bxd5#
Sep-01-09  wals: [Event "Havana"]
[Site "Havana"]
[Date "1994.??.??"]
[Round "6"]
[White "Hector Leyva"]
[Black "Vivian Ramon"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2400"]
[BlackElo "2248"]
[Annotator "Rybka 3 1-cpu (30m)"]
[PlyCount "43"]

D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 ♘f3

1. d4
Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 O-O 8. Be2 c5 9. Rb1 cxd4 10. cxd4 Qa5+ 11. Bd2 Qxa2 12. O-O a5 13. d5 e6 14. Bg5 exd5 15. exd5 Qa3 16. d6 Nd7 17. Bb5 Qc5 18. Be7 Re8 19. Qd3 a4 20. Rbc1 White threatens to win material: ♖c1xc5 (20. Rfc1 Qf5 21. Rxc8 Rexc8 22. Qxf5 gxf5 23. Bxd7 ) 20... Qb6 ? <dubious> (20... Qb4 21. Rfe1 Qa5 22. Ng5 ) 21. Qd5 ( 21. Bc4 White had this great chance Rf8 22. Bxf8 Nxf8 23. Bxf7+ Kh8 24. Ba2 ) 21... Ra5 ?? <blunder> another bit of territory lost (21... Nf6 22. Bxf6 Be6 ) 22. Qxf7+ Mate attack (22. Qxf7+ Kxf7 23. Bc4+ Rd5 24. Bxd5#) 1-0

The above may be of interest to those seeking help.

Sep-01-09  psmith: More of a Monday puzzle.
Sep-01-09  Amarande: <JonathanJ: <newton296> i don't think that Ng5 is an easy win against a 2200+ player if you aren't even able to find this queen sac :P>

One has to consider here whether newton even bothered to *look* for the Queen sac.

If one first analyses 22 Ng5, one will of course see the threat of 23 Qxf7+ clearly. One then checks to see if Black has a defense against this, and sees quickly:

* if Black tries moving the King away, 22 ... Kh8, 23 Nxf7+ mates in four, by the classical smothered mate pattern.

* if Black tries simply taking the Bishop, it is enough to notice that 23 Qxf7+ wins the e8-Rook for it while in no way abating White's attack, to see that this is hopelessly insufficient.

* that the Black Rook that is involved in the threat posed by 23 Qxf7+ is shy a safe escape.

* thus, Black's only hope is to try to protect f7 further. If he tries to do this with the Rook, 22 ... Rf8, then simply 23 Bxf8 Nxf8 24 Qxf7+ Kh8 25 Rxc8 and Black can resign with a clear conscience.

Thus he can only try 22 ... Ne5, which is refuted most beautifully. 23 Bxe8!! is the move, completely ignoring the pin that Black relied upon to save his Rook! 23 ... Rxd5 now fails to 24 Rxc8!!

click for larger view

The immediate threat is 25 Bxf7 mate. However, because this is a double check there is precious little Black can do about it: he is already guarding f7, and can attack c8 by offering his Queen, but of course both of these are futile in the face of a double check threat. f7 and h7 are guarded by the White Knight, so Black can only hope to escape by moving his Bishop, to give his King room.

Four defensive tries are possible:

a) 24 ... Bh6 blocks a critical secondary escape square and White mates by 24 Bxf7+ Kg7 25 Rg8#.

b) 24 ... Bf6 is interesting, as it leads to a mate involving a further echo of the same theme: 25 Bxf7+ Kg7 26 Bf8+ Kh8 and now not 27 Bh6+? Bd8, but 27 Ne6!!, and again White threatens to mate by a double check with a Bishop (28 Bg7#). This time, though, Black will not survive - the only way to give the King room is to move the h-pawn, but after either 27 ... h6 or h5 there is 28 Bg7+ Kh7 29 Rh8 mate.

c) 24 ... Bh8 25 Bxf7+ Kg7 26 Bxd5 and Black can resign; he has lost far too much material for the Queen he has won, and White still has both a strong attack and the passed pawn d6 besides.

d) 24 ... Bf8 25 Bxf7+ Kg7 26 Bxf8+ Kf6 (if 26 ... Kh8 27 Ne6 leads to the same mate as in variation b above) 27 Bxd5 and again Black is too far behind on material to live.

All this means that after 23 Bxe8, Black cannot take White's Queen and must instead do something about his attacked Bishop to prevent the deadly Rook incursion. Naturally 23 ... Ra8 is tantamount to resignation, as Black has simply lost a Rook and given up his only counter threat, while White's attack remains strong as ever; therefore, only 23 ... Bd7 is to be considered. 24 Bxd7 is the reply and Black may as well take the Queen now, else he has given up a Rook for nothing and he has no more tricks. 24 ... Rxd5 25 Rc8+ Bf8 26 Rxf8+ Kg7 27 Bxa4, and Black is out of the woods for now, but White has a Rook and two minor pieces for the Queen, still the dangerous passed pawn on d6 (Black has a passed pawn too, but at b7 it's very little of a threat) and Black's King is by no means safe, so Black is bound to lose in due course.

Therefore, analysis of 22 Ng5 is enough to establish it as more than sufficient to win, and that there are no surprise counters to it. At this point one normally plays such a move. As Chernev once said about Chekhover vs I Rudakovsky, 1945, "leave the brilliancies to Alekhine and Keres." The idea being, of course, that once you see a clear way to win, it's generally better to simply execute it, than to go off looking for brilliant moves (even if they are correct, which is the case in both this game and the position Chernev's famous comment referred to). Why take the risk the brilliancy might be flawed, and even if it turns out not to be, why waste the extra time to look for it?

FWIW, I did see 22 Qxf7+, and thus, similarly, didn't even consider 22 Ng5 until the topic came up here on the board :)

Sep-01-09  WhiteRook48: I found 22 Qxf7+!! but had completely the wrong idea, after 22...Kxf7, i found 23 Ng5+? giving away the win, with 23...Kg8 (forced) 24 Bc4+ Kh8 25 Nf7+ with a perpetual. I only found that obstruction after getting convinced that 23 Ng5+ won silly me
Sep-01-09  fouard: 22 Qxf7+ - Black can't take the queen due to mate in one at c4 from the other Bish. So he plays ...Kh8. Next comes Qxe8+, followed by Rxc8, Bf6+ or simply d7, depending on which futile interposition Black chooses.
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