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Vladimir Kramnik vs Gregory Kaidanov
PCA Qualifiers (1993), Groningen NED, rd 9, Dec-28
Queen's Gambit Declined: Vienna Variation (D37)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Aug-05-06  Brent Baccala: Why does black resign on the 31st move?
Aug-05-06
Premium Chessgames Member
  RandomVisitor: <Brent> Black has no playable move. 1: Kramnik Vladimir - Kaidanov Grigory S, Ch World (select) (PCA) 1993


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Analysis by Rybka 2.1c mp:

1. (6.07): 31...Kf6 32.Bb3 Be6 33.Qxa8 Bxb3 34.Qh8+ Ke6 35.Qg8+ Kd7 36.axb3 Kd6 37.Qd8+ Rd7 38.Qf6+

2. (6.07): 31...Bd7 32.Bb3+ Be6 33.Qxa8 Bxb3 34.axb3 Kg7 35.Qd8 Kf7 36.Qd5+ Kg7 37.Qd6 Kf7 38.Qd8

3. (6.84): 31...Rb8 32.Qh8 Be6 33.Qxb8 Bxa2 34.Qh8 b5 35.Qxh7+ Kf6 36.Qf5+ Kg7 37.Qg5+ Kf8 38.Qf6+

(, 05.08.2006)

Aug-05-06  thermalbrain: Other than the fact of losing the game, I first thought 22. Qxf6
Aug-05-06  jahhaj: Looked quite easy at first because the threats of 22...Qxb6 and 22...Qa1 mean White's choice is limited. Still it took me quite a while before I saw 22.Re7+, it's not the first check you consider!

I find the line 22.Re7+ Kf8 23.Rf7+ Kg8 24.Rg7+ Kf8 25.Qxf6+ (or similarly 23...Ke8 24.Re7+ Kf8 25.Qxf6) really amusing. The Black king creeps along the back rank never daring to take the rook, until White can deliver the knock out blow Qxf6+.

Aug-05-06  percyblakeney: My first thought looking at the position was that something will happen on f6 and f7, and then I realised that both b6 and a1 are threatened, so subtle moves is no good idea. I found the right line until 25. Bxd3 in five minutes and thought white ought to be winning since he'll win more material and black's position is so uncomfortable. But I was too lazy to even try to calculate any further...
Aug-05-06  jahhaj: Interesting opening. I was White and had the position after Black's 9th in a recent blitz game. I thought I was in trouble but actually White has lots of resources because of Black's lack of development. Even a move like 10.Bxf6 is fine for White because of the line 10...Qxc3+ 11.Kf1 Qxc4+ 12.Kg1 gxf6? 13.Rc1 winning.
Aug-05-06  jahhaj: <Brent Baccala> Black resigned because he has no way to stop White from using his bishop and queen to win his rook. For instance 31...b5 32.Bb3+ Kf6 33.Qf8+ wins the rook or 31...Kf6 32.Bb3 and Black is powerless to stop Qf8+ again winning the rook. The only way to prevent the loss of the Re7 is to move the Bf8 which just loses the other rook in the corner.
Aug-05-06  jahhaj: <thermalbrain> You had the right idea, you just had to find a way of playing Qf6 with check. That's what Re7 does.
Aug-05-06  Wilson H. L.: Saw 22. Re7+ after one or two minute of reflection (and ...Kxe7 23.Qf6+). However I didn't get 24. Rd3
Aug-05-06  thirdeye: I didn't solve it, I spent most of my time looking at Bb5+.

Does anyone else feel this rook sac would be much easier to spot if there was a black pawn on e7?

Aug-05-06  EmperorAtahualpa: Nope, didn't solve this puzzle. Let me not even mention the line I was thinking, because it totally doesn't make sense!
Aug-05-06
Premium Chessgames Member
  chrisowen: Considerably strong and tricky Re7+ then recognised the Qxf6+ for the one two knockout.
Aug-05-06  mig55: found Re7 in 10 sec, never did so good on a saturday!!
Aug-05-06  Mountainman1: I thought about the Rook taking the Bishop, and then White would push the Black King down the G file, to finish him off after White Queen retreats to f5 - but the Black Queen has the a1 check (and mate)- so that had to be scrapped.
Aug-05-06
Premium Chessgames Member
  Phony Benoni: I analyzed 22.Rxf7+. If it had actually been check, I might have been OK.
Aug-05-06  TopaLove: Just like Kramnik, I am such a strong positional player. Itīs not a surprise that I am doing great this week.
Aug-05-06
Premium Chessgames Member
  kevin86: The sac was really an exchange of two rooks for the queen. The profit was all white's as the black rook and bishop are comatose. So,in effect,white has a very active queen and bishop for a scurrying rook.
Aug-05-06  PaulLovric: 15 seconds
Aug-05-06
Premium Chessgames Member
  patzer2: As <Kevin86> correctly observes, today's puzzle solution 22. Re7+!! is a deep positional sham sacrifice, designed to secure the decisive advantage of an active Queen and Bishop against two uncoordinated Rooks and an immobile Bishop.

Kramnik is at his best in visualizing this favorable exchange, and displays near flawless technique in his followup to secure the win.

Normally, two Rooks are stronger than a Queen. However, there are exceptions to every rule. Playing over this combination is useful in learning some key favorable positions with the Queen versus two Rooks. For example, if 22...Kf8, then 23. Rxf7+! Ke8 24. Qb3!! yields a decisive attack. Or if 29...Rg7, then 30. Ba4+ Ke7 31. Qc7+ Kf6 32. Qd8+ Re7 33. Bb3 b5 34. Qf8+ decides.

Aug-05-06  cavaleiro: I thought 22. Qf6, but than I saw it is mate in two moves for black...
Aug-05-06  THE pawn: Is this really Saturday? My my I improve!
Aug-06-06  2ndNature: Usually I don't look at Saturdays (for various reasons...), so when I saw this puzzle today I thought - "Gee! That's easier than some Mondays!!!" The only thing you have to see is Rf3-d3 when Black's King is on a d file.
Aug-06-06  2ndNature: I bet that after 11...Qxc3+ 12.Kf1 Black was thinking "Looks good for Black!" but he must have missed an unorthodox Rook's sortie that followed (13.h4 and 14.Rh3) after which White is charging full steam ahead - that really was a bad news for the Black camp!
Aug-07-06  Larsker: <when I saw this puzzle today I thought - "Gee! That's easier than some Mondays!!!"> Yea, right. White to play and get a winning position in 9 moves....
Aug-09-08  littlefermat: 1 Nf3 d5 2 d4 Nf6 3 c4 e6 4 Nc3 dxc4 5 e4 Bb4 6 Bg5 c5 7 Bxc4 cxd4 8 Nxd4 Bxc3+ 9 bxc3 Qa5 10 Bb5+ Nbd7

<10...Bd7 leads to a rather unpleasant position for Black. After 11 Bxf6 gxf6 12 Qb3 a6 13 Be2 Nc6 14 0-0 Qc7 15 Rab1 (15 Qa3!?; 15 Rfd1) 15...Na5 16 Qa3 I had already experienced this for myself ( Khenkin vs Kramnik, 1989 )>

11 Bxf6 Qxc3+ 12 Kf1 gxf6 13 h4 a6

<Very dangerous is 13...Ke7?! 14 Rh3 Qa5 15 Rb1 Rd8 16 Qc1!, when there is literally nothing that Black can move (Adorjan vs A Chernin, 1990).>

14 Rh3 Qa5 15 Be2 Nc5?!

<15...Ke7 is stronger, although after 16 Rc1 Rd8 17 Qc2 White, in my opinion, has more than sufficient compensation for the pawn.>

16 Nb3!

<Exchanging Black's only active piece is even more advantageous, for the reason that the white knight at d4 is not too well placed...>

16...Nxb3 17 Qxb3 e5

<At that time this was a new move - and an unsuccessful one. It is true that, in order to refute it, at the board I had to find several precise and difficult moves. Earlier 17...Qc7 18 Rd1 Bd7 was tried, but after 19 Qb2! Black had serious difficulties.>

18 Rf3

<The only way of maintaining the initiative and of forestalling the opponent's clear plan: ...Qc7(d8)-e7 and ...Be6. Instead 18 Rc3 looked tempting, but then 18...Be6! would have fully equalised, e.g. 19 Qxb7 Qxc3 20 Qxa8+ Ke7 21 Qb7+ Kf8 22 Rd1 Bxa2 23 Qxa6 Be6.>

18...Qd8?!

<18...Ke7 was dangerous on account of 19 Rc1 followed by Rfc3, but in the light of subsequent events perhaps Black should have gone into an ending: 18...Be6 19 Qxb7 0-0 20 Qe7 Qd8 21 Qxf6 (21 Qc5!?) 21...Qxf6 22 Rxf6 Rfd8, where he has certain drawing chances.>

19 Rc1!

<This move was underestimated by my opponent. Now it is not apparent how he can complete the development of his pieces. I will give a few variations: (a) 19...Bg4?! 20 Rd3 Bxe2+ 21 Kxe2 Qe7 22 Qb6 Rd8 (22...Qe6 23 Qxe6+ fxe6 24 Rc7) 23 Rc7 and wins; (b) 19...Be6 20 Qxb7 0-0 21 Rd1 Qe8 22 Rxf6 and White has a decisive advantage; (c) 19...b5 20 Rc6! Be6 21 Qa3 (21 Rxe6+? fxe6 22 Qxe6+ Qe7) 21...Qe7 22 Bxb5! Qxa3 23 Rxa6+ Ke7 24 Rfxa3 with a positional and material advantage; (d) 19...0-0 (the most critical, but also insufficient) 20 Qe3 Kh8 21 Qh6 Rg8 (21...Be6 22 Rd3 Qe7 23 Rc7!) 22 Rd3 Qe7 (better is 22...Qf8 23 Qxf6+ Qg7, when Black faces a difficult defence in the endgame) 23 Rc7! Qe6 24 Rd6! Qxd6 25 Rxf7.

Black chooses another alternative, which is little better.>

19...Qe7 20 Qb6 Qd8?!

<Reluctantly played. Kaidanov's suggestion of 20...Bg4 21 Rc7 Qe6 would have lost to 22 Qxb7 Rd8 23 Bc4! Bxf3 24 gxf3 Qh3+ (24...Qd6 25 Bxf7+ Kf8 26 Bd5) 25 Ke2 0-0 26 Rxf7, but the lesser evil was 20...Qe6 21 Rxf6 Qxb6 22 Rxb6 Be6, with some chances of saving the game.>

21 Rc7!

<More energetic than 21 Rxf6.>

21...Qd4 22 Re7+!

<Simpler than 22 Qxd4 exd4 23 Bc4, which, however, was also quite strong.>

22...Kxe7 23 Qxf6+ Kd7 24 Rd3

<This is somewhat more accurate than 24 Qxf7+ Kd8 (24...Kc6? 25 Rf6+ Kc5 26 Qe7+) 25 Rd3 (25 Qf6+ Kc7) 25...Bd7 26 Rxd4 exd4 27 Qf6+ Kc7 28 Qe5+ Kc6, where Black connects his rooks (which, it is true, also should not save him).>

24...Qxd3 25 Bxd3 Re8

26 Bc4!

<The main thing is not to allow the opponent to coordinate his pieces.>

26...Re7 27 Bxf7

<White has a small material advantage and a big positional one. The outcome of the game is decided.>

27...Kd8

<Or 27...b5 28 Bd5 Ra7 29 Bc6+ Kd8 30 Qf8+, winning the ill- fated rook.>

28 Qb6+ Kd7 29 Bb3 Ke8 30 Ba4+ Kf7

<After 30...Bd7 Black finally 'unravels' himself, but on the way he loses a rook: 31 Bxd7 Rxd7 (31...Kxd7 32 Qxb7+) 32 Qe6+ and 33 Qg8+.>

31 Qd8

<Black resigns. He did not in fact manage to complete his development.>

Kramnik's <My Life and Games>

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