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Yuniesky Quesada Perez vs Alexander Graf
XXI Carlos Torre KO (2008), Merida MEX, rd 1
Caro-Kann Defense: Advance. Short Variation (B12)  ·  1-0



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Oct-21-10  Patriot: <agb2002> I agree it can still be tricky to win--more than I thought. My line against Crafty was the same until 46...Kf8 47.Kd4 Ba4 48.Bxf5! Bd7 49.c6 Bxc6 50.Bxe6 a5 51.Bxd5 Be8 52.f5 a4, etc.
Oct-21-10  jussu: Ahh, nice one. This is easy when you are told that it is a puzzle but I doubt that I would see it in a tournament game.
Premium Chessgames Member
  kevin86: What follows is not pretty: 42 ♗h5 followed by ♗g6 hxg6 44 h7 and queenz

on the other hand,it may be pretty after all.

Oct-21-10  CHESSTTCAMPS: < <agb2002> responding to <David 2009> <So: beat Crafty EGT if you can and post your winning line. Off to do other things...>

<Just played: 40.h6 gxh6 41.gxh6 Bxa2 42.Bh5 Bxb3 43.Bg6 c5 44.Bxc5 Nxc5...> >

Another approach is to play 42.Bd6! first (then Bh5), avoiding c5 and preventing Nf8. I was able to win with that on my 3rd attempt after two draws.

<David2009> Thanks a lot for your response on Topalov vs Leko, 2006 to my profile and I will follow up with you on that.

Premium Chessgames Member
  chrisowen: Block-busters h6 its good dumping Hector holds h5 fast Bb1 seize at a2 pawn but white's attack much more quick. Ideology I lie advantage it foot soldier gates. Short example Alexander, playing with a solid pawn chain Philidor style. No God free Judas bishop David vs Goliath engine not worthy had a josh you er safety king art her highness offside. See Harley main hog d8.

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "New game"]
[Black "?"]
[Result "*"]
[PlyCount "90"]

1. Nf3 d6 2. c4 e5 3. Nc3 h6 4. d4 Nc6 5. d5 Nce7 6. h3 g5 7. e4 Bg7 8. Qb3 f5 9. Bd3 b6 10. Qc2 f4 11. Bd2 Nf6 12. O-O O-O 13. b4 Ng6 14. c5 Rf7 15. Qa4 g4 16. hxg4 Bxg4 17. Be2 Bxf3 18. Bxf3 Nh4 19. Be2 Bf8 20. cxd6 cxd6 21. f3 Nh5 22. Rf2 Ng3 23. Bb5 Ng6 24. Bc6 Qh4 25. Rff1 Rd8 *

Oct-21-10  micartouse: I was proud to have seen this so quickly, and then I come on here to find so many people found it easily. :) It always goes like that - you think you're clever and find out you're average.
Oct-21-10  Fezzik: This is an easy puzzle if you're familiar with the idea, but extremely difficult if you've never seen it before. While queening the pawn can be delayed by more than 20 moves with best play, it can't be stopped. White needs to be careful, but the win is inevitable.
Premium Chessgames Member
  Sneaky: Wow, I found the solution quickly and thought I was a genius for seeing it, only learn that 90% of us fit into that category. That's fine with me. Instead of calling the puzzle easy, let's call ourselves geniuses.

I think this is just perfect for a Thursday, too. A chess novice would see the final position and not understand why Black resigned. But us in the genius-club saw quickly that Bh5 & Bg6 is an attack that has no defense.

Premium Chessgames Member
  scormus: I admit I had a lot of trouble with this. To be completely honest I didnt get it. I thought that after a6, B could still stop the K-flank pawn.

<Trollking, Jim, ..... thanks for pointing out those lines> now I see how tricky it is I dont feel so bad. A good Friday puzzle.

Oct-21-10  Salaskan: 40.h6 followed by forcing an advanced outside passer is pretty, but speculative and impatient. After 41...Bxa2 42. Bh5 c5 43. Bxc5 (43. dxc5? blocks off the bishop, black plays Kc6 and Nf8) Bxb3 44. Bg6 Nxc5 45. dxc5 Ke7, Black is a pawn up with a dangerous passer on the a-file. White wins only with accurate play: 46. c6 Ba4 47. Bxh7 Kf8 48. Bxf5! exf5 (48...Bxc6 49. Bxe6) 49. c7 Bd7 50. Kd4 Be6 51. Kc5 Kf7 52. Kd6 Bc8 53. e6+! Bxe6 54. h7 .

40.Kd2, when Black can't capture the pawn because of Kc2 trapping the bishop, is simple and effective, since White wins by either moving his king up the 'b' file, or winning pawns with his light-squared bishop because the black king is overloaded protecting c6 and g6.

Premium Chessgames Member
  Breunor: I'm not sure it is fair to say black resigned too quickly, even given the Crafty line. After all, if Graf didn't see the line and wouldn't have played it, he would have lost anyway.
Premium Chessgames Member
  LIFE Master AJ: Y Quezada vs A Graf, 2008

Problem of the day. (Thursday; Oct. 21st, 2010.)
White to play, 40. '?'

I played Crafty, and to my surprise, I could not easily win.

This is the position after 41.gxh6.

click for larger view

41...c5!; 42.Bxc5! Nxc5; 43.dxc5 Bxa2;
This has to be one of the critical positions.

click for larger view

The speediest.

(Or slower (but still winning) is: 44.Bd1 a5 45.Kd4 Kc7 46.Kc3 Kc6 47.b4 axb4+ 48.Kxb4 d4 49.Bh5 d3 50.Kc3 Kxc5 51.Bg6 d2 52.Kxd2 )

I think that this is Black's best defense.

(Or 44...Bxb3; 45.Bg6 Ke7; 46.Bxh7 Kf8; will probably just transpose.)

45.Bg6 Bxb3; 46.Bxh7 Ke8; 47.c6 Ba4; 48.c7 Bd7;

click for larger view

49.Bxf5! Kf8▢; 50.Bb1! a4; 51.Kd4 a3;

Black has managed to mess things up as best as he could.

click for larger view

52.f5!, Best.

(Less convincing is: 52.Kc5 Bc8; 53.Kb6 d4; and Black gets counterplay. )

Black may as well.

(Or 52...Kf7; 53.h7! a2!?; 54.fxe6+ Bxe6; 55.Bxa2 Kg7; 56.Bxd5 Bg4; 57.e6 )

53.h7 Kg7; 54.Kxd5 Bc8; 55.e6 Kxh7; 56.e7 Bd7;

click for larger view

The sharpest and best.

(For the faint-hearted, 57.Ke5 , was simpler.)

57...Bxf5; 58.e8Q a2; 59.Qh5+ Kg7; 60.Qg5+ Bg6; 61.c8Q a1Q; 62.Qd7+ Kg8; 63.Qgd8+ Be8; 64.Q8xe8#.

click for larger view


Oct-21-10  CHESSTTCAMPS: <LIFE Master AJ:>
Interesting. From your first position, Crafty played 41... Bxa2 three times against me, once against <agb2002>, and once against <David2009>. See earlier posts. Against this move, 42.Bd6! wins easily.

I'm pretty sure that my first game against Crafty was almost identical to yours, except I believe I reached your 3rd position with the black king on f7 instead of e8. Too bad I didn't keep the game score. I was playing rather too fast, a bad habit acquired by playing too much on recently.

Oct-21-10  wals: Analysis Rybka 4 x 64

depth 18 : 3 min :
Black error
Best, g6, 0.50, strengthens the kingside.

depth 24 : 9 min :
THE Black blunder
(+4.99):39...Bb1. pawn chasing.
Best,h6, or g6, stitching up the kingside, +1.26 and +1.37, respectively, and allowing Black to play on until its next blunder.

Oct-21-10  EXIDE: <Life Master AJ> Thanks for the detailed description of the win. I missed this one completely. Spent all of my time to win with Bd3, and trapping the black bishop. Could not resolve the situation. Anyone played that out on a computer?
Oct-21-10  twin phoenix: Tks for the analysis <Life Master AJ> it confirms my belief that black resigned a bit prematurely. No black can't draw (thankfully)but he could have still tried to present white with some problems. As long as you can give your opponent something to think about i feel one should never resign! Spent too much time as a 'B' player and saw entirely too many blown games to resign at move move 41.
Oct-21-10  wals: Rybka 4 x 64, analysis from move 41.gxh6.

depth 26 : 58 min :
1. (5.81): 41...Bxa2 42.Bh5[] Bxb3 43.Bg6[] Bc2 44.Bxh7[] Nf8[] 45.Bxf8[] Ke8[] 46.Bc5 Kf7[] 47.Kd2 Be4 48.Bxa7[] Bf3 49.Kc3 Bh5 50.Kb4 Bf3 51.Kc5 Bh5 52.Kxc6 Kf8 53.Kd6 Kf7[] 54.Bb6 Bf3 55.Bd8 Be4 56.Kc5 Bf3

2. (8.40): 41...a5 42.Bxa5+[] Ke7 43.Bb4+[] Kf7 44.a4[] Ba2 45.Bh5+[] Kg8 46.Bd1[] Nb8 47.a5[] Na6 48.Bd6[] c5 49.Bxc5[] Nb8 50.b4[] Bc4 51.Ba4[] Na6 52.b5[] Kf7 53.bxa6 Bxa6 54.Bd7 Bb7 55.Bb5 Bc8 56.a6[] Kg8

Premium Chessgames Member
  AylerKupp: I think that Black's best practical chance might be 40.h6 gxh6 41.gxh6 c5 42.Bxc5 Nxc5 43.dxc5 Bxa2 44.Bh5 Bxb3 45.Bg6 Ke7 46.Bxh7 Kf8 47.c6 Ba4 48.c7 Bd7. Delaying ...a5 allows Black to both prevent White's h7 pawn from immediately queening and reinforce his e5 pawn.

But Bxf5 still works; e.g. 49. Bxf5 exf5 50.Kd4 Be6 51.Kc5 Kf7 52.Kd6 Bc8 53.e6+ Bxe6 54.h7 and either the c-pawn or the h-pawn will queen. Still, this and similar lines, as <LMAJ> said, are probably also "not for the fainthearted" and certainly beyond my abilities OTB and without lines from previous posts, particularly with Black's a- and d-passed pawns ready to sprint for the goal line.

One of the most interesting, enjoyable, and complex endgames I've seen in quite a while.

Oct-21-10  AGOJ: Well, I was way off. I thought of 40.Bd3 (to place the Bishop in the b1-h7 diagonal), 40...Bxa2, 41.g6 (to fix g7), to be followed by Bxf5, e6, and Bf8 to take g7. Too complicated, very probably losing, and the actual game continuation is much simpler.
Oct-21-10  DarthStapler: I got the general idea and the line with g6 but I didn't consider gxh6. Also, the winner of this game's name reminds me of Joe Quesada, head editor of Marvel Comics
Oct-21-10  tacticalmonster: 1) Black is threatening to destroy White's queenside with Bxa2

2) White has a nice kingside space advantage. He would like to create a passer there

3) the dark square bishop is doing a fine job cutting off black king and knight access to the kingside

4) Black LSB is too far away to help in the kingside

candidate: 40 h6

a) 40...g6 41 Bh5! gxh5 (or 41... Bxa2 42 Bxg6) 42 g6

b) 40...gxh6 41 gxh6 c5 42 Bxc5 Nxc5 43 dxc5 Bxa2 44 Bh5- the c-passer and the eventual h-passer will cost Black the game.

Oct-21-10  CHESSTTCAMPS: I promised a followup on my first post, in which I started down the path 40.Kd2 before discovering the preferred solution (and game continuation) 40.h6!. I tried my line against Crafty EndGame Trainer, with the following result on the first try:

40.Kd2 Kc7 42.Bd6+ Kb6 43.h6 gh c5 45.dc+ Nxc5 46.Bxc5+ (simple and clean) Kxc5 47.Bh5 Kc6 48.Bg6 Kd7 49.Bxh7 Ke7

click for larger view

The black king gets back in time to stop the h-pawn, but at at a heavy price.

50.Bg8! Kf8 50.Bxe6 Be5 (Bxa2 51.Kc2 d4 53.Bc4 and black's bishop is trapped) 51.Kc3 Bf3 52.b4 Bg4 53.Bxd5 and white won easily.

On a later try, I varied with

41.h6 gh c5 43.Bxc5 Nxc5 44.dxc5 Bxa2 45.Bh5 Bxb3 46.Bg6 a5 47.Bxh7 a4

click for larger view

48.Bxf5! a3 49.Bb1 a2 50.Bxa2 Bxa2 51.h7 Kc6 52.h8=Q and white won.

A better test for 40.Kd2 would be 40... g6 or 40... h6. I think white should still win, but I leave it for someone else to prove or show otherwise.

Premium Chessgames Member
  LIFE Master AJ: <To all> (who thanked me for my analysis) ...





Premium Chessgames Member
  LIFE Master AJ: ADDENDUM ... to my last analysis.
(Engine = Stockfish.)

This is the position after 39...Bb1:

click for larger view

White: Ke3, Bb4, Be2; Pawns - a2, b3, d4, e5, f4, g5, and h5. Black: Kd8, Nd7, Bb1; Pawns - a7, c6, d5, e6, f5, g7, and h7.

40.h6! gxh6▢;

(Weaker is 40...g6?; 41.Bh5 , and White should have no trouble winning the game.)

41.gxh6, 0-1
Black resigned prematurely - as all the kibitzing of this clearly game shows. (Even 2600+ players don't always get it right.)

click for larger view

Now the engines clearly show that Black's best is 41...c5; see my previous analysis for a thorough look at this line.

Weaker was:

</= 41...♗xa2?!; ('?') 42.♗h5 ♔c8;
Several engines give this as best, all the alternatives are clearly weaker.

This is the current position here -

click for larger view

(Or after the moves: 42...c5; 43.Bxc5 Nxc5; 44.dxc5 Bxb3; 45.Bg6 Ke7; play will probably transpose into my main line.)

43.♗g6 a5; 44.♗d6 ♘b6; 45.♗xh7 ♗xb3;
This is close to being forced.

(Weaker is 45...Kd7; as now 46.Bg8 , is winning easily.)

Current position -

click for larger view

Now White wraps things up.

46.♗g8 ♔d7; 47.h7 ♘c4+; 48.♔d3 ♘xd6;

click for larger view

This is the most practical, if the Knight gets to a strong square like e4, it can just cause too many problems.

In a tournament, I am NOT primarily concerned with winning material, but reducing my opponent to a position where he (or she) has as little counterplay as possible.

49...♔xd6; 50.h8=Q,

click for larger view

White wins easily, the box is already seeing the mate.

Oct-22-10  wals: Analysis by Rybka 4 x64: depth 21 :20 min :

1. (5.83): 41...Bxa2 42.Bh5[] Bxb3 43.Bg6[] Bc2 44.Bxh7[] Nf8 45.Bxf8[] Ke8[] 46.Bc5[] Kf7[] 47.Bxa7[] Bd1 48.Bc5[] Bh5 49.Kd3[] Bf3 50.Bd6[] Bh5 51.Kc3[] Bf3 52.Kb4 Bd1 53.Kc5 Bg4 54.Kxc6[] Bh5 55.Bc5 Bg4 56.Kd6 Bh5

2. (6.81): 41...a6 42.Bh5 a5 43.Bxa5+ Ke7 44.Bb4+[] c5 45.dxc5[] Nb8 46.c6+[] Kd8 47.Ba5+[] Kc8[] 48.Be8[] Bxa2 49.b4[] Bc4 50.Bf7[] Nxc6 51.Bxe6+[] Kb7 52.Bxf5 Ne7 53.Bxh7[] Ng8[] 54.e6 Nxh6[] 55.e7 Bb5 56.Kd4[] Kc8

3. (6.99): 41...a5 42.Bxa5+[] Kc8 43.Bh5[] c5 44.Bf7[] Nf8 45.dxc5[] Kd7 46.a3[] Be4 47.b4[] d4+ 48.Kxd4[] Bc6 49.Bh5[] Kc8 50.Ke3[] Kb8 51.Be2[] Bd5 52.b5[] Ng6 53.Bd2 Nh4 54.c6 Ng6 55.Kd4 Ne7 56.Kc5 Bb3

4. (6.99): 41...Kc8 42.Bh5[] a5 43.Bxa5[] c5 44.Bf7[] Nf8 45.dxc5[] Kd7 46.a3[] Be4 47.b4[] d4+ 48.Kxd4[] Bc6 49.Bh5[] Kc8 50.Ke3[] Kb8 51.Be2[] Bd5 52.b5[] Ng6 53.Bd2 Nh4 54.c6 Ng6 55.Kd4 Ne7 56.Kc5 Bb3

5. (8.38): 41...Nb8 42.Bd6 Kd7 43.Bxb8 Ke7 44.Bh5 Kf8 45.a4 Bc2 46.Bxa7 c5 47.Bxc5+ Kg8 48.a5 Bxb3 49.a6 Ba4 50.a7 Bc6 51.Bd6 Ba8 52.Be8 Bb7 53.Bb4 Ba8 54.Bh5 Bc6 55.Bc5 Bb7 56.Be8

6. 41...c5.

1. (9.87): 42.Bxc5 Bc2 43.Bh5[] Bd1 44.Bxd1[] Kc7 45.Bxa7[] Kb7 46.Bc5 Nb8 47.b4 Nc6 48.Bh5 Nd8 49.Be8 Kc7 50.a4 Kb7 51.a5 Ka6 52.Bb6[] Nc6 53.Bf7 Nxb4 54.Bxe6 Nc2+ 55.Ke2 Na3

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