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Rafael Duailibe Leitao vs Alexander Baburin
"Lurin' Baburin" (game of the day Sep-08-2005)
Europe-Americas (1998), Mermaid Beach, rd 6, Jan-26
Queen's Gambit Accepted: Classical Defense. Main Lines (D27)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Sep-08-05  halcyonteam: First for the first time. Why exactly did black resigns here?
Sep-08-05  halcyonteam: nvm, got it, white has mate in 3
Sep-08-05  Vavilov: What if 21 ... Qxd2 22 Bxc5+ Kd8 23 Rxd2+ Ned7 ? <halcyonteam> is probably right that it's mate in 3, but I don't see it yet. Can someone explain?
Sep-08-05  Kangaroo: <<Vavilov>: What if 21 ... Qxd2 22 Bxc5+ Kd8 23 Rxd2+ Ned7 ? <halcyonteam> is probably right that it's mate in 3, but I don't see it yet. Can someone explain?>

After <21 ... Qxd2 22. Bxc5+ Kd8 23. Rxd2+ Ned7> White continues <24. e5> and wins the knight.

As the least evil, Black may select
<21 ... Qxd2 22. Bxc5+ Kd8 23. Rxd2+ Nfd7>, but then <24. f4> leads to the same pityful result.

Sep-08-05
Premium Chessgames Member
  Sneaky: Who says knights on the rim are grim? 15.Na4!! Knights on the rim are SNEAKY!
Sep-08-05  yunis: no mat is found here 'it just material advantage probable 22...Qx2.23.Bxc5+ 24.Kd8-Rxd2+
Sep-08-05  EmperorAtahualpa: <yunis> I would say the advantage is positional rather than material.

What a brilliant combination though! 15.Na4, what a move!

A very nice Game of the Day.

Sep-08-05  Skylark: Actually the advantage definitely is material; the win of a complete rook. As Kangaroo said, the second player loses a knight, leaving him a rook up and with two bishops vs a bishop and a knight. A clear material advantage.
Sep-08-05
Premium Chessgames Member
  al wazir: al wazir: <Kangaroo: After <21 ... Qxd2 22. Bxc5+ Kd8 23. Rxd2+ Ned7> White continues <24. e5> and wins the knight.> 24...Nd5 hangs on.

Black is an exchange down, but that's not enough reason to resign. I think white has a win, but it looks to me like another case of premature capitulation.

Sep-08-05  ashalpha: LOL. Yes an exchange down in a lost endgame(24.f3 not 24.e5) is hardly cause to resign.
Sep-08-05
Premium Chessgames Member
  patzer2: Fritz 8 indicates 18...Rhc8? is a mistake, since Black can hold the position with drawing chances after the defensive move 18...Nxe4!, yielding White only a slight advantage after 19. Nxc5 Nxc5 20. f4 Ng6 21. f5 Ne5 22.Qf2 Rc8 23.Qh4+ f6 24. b4 Bd5 (+0.34 @ 13 depth).

In fact, according to Fritz 8, all moves other than 18...Nxe4! lose outright.

Sep-08-05
Premium Chessgames Member
  patzer2: In any event, 15. Na4! is an excellent positional sacrifice, giving White at least equality against best play and a win if Black fails to find the best defense.
Sep-08-05
Premium Chessgames Member
  patzer2: White's 20. b4! effectively combines the pin, deflection and double attack tactical themes to win back the piece plus the exchange for a winning material advantage. The "in between move" theme is also in play after 21...QxQ 22. BxR+ .

Note that 20. Bxc5? Qxc5 = throws away the immediate winning advantage because Black retains two pieces for the exchange.

Sep-08-05  Counterpoint: Brilliant tactical play by Leitao. with white's active pieces, a sacrifice for an exposed king is well compensated.
Sep-08-05  EmperorAtahualpa: <Skylark: Actually the advantage definitely is material; the win of a complete rook. As Kangaroo said, the second player loses a knight, leaving him a rook up and with two bishops vs a bishop and a knight. A clear material advantage.>

Sorry <Skylark>, but <Kangaroo>'s lines are just wrong:

21...Qxd2 22.Bxc5+ Kd8 23.Rxd2+ <Ned7 24.e5??> 24...Nd5!

Also <Kangaroo>'s other suggestion is wrong: <23...Nfd7 24.f4??> Also 24...Nd5!

Rather than <Kangaroo>'s moves 23...Ned7 or 23...Nfd7, I think <Yunis>' suggestion 23...Kc8 is still best.

When we look at the material side of all this, well then OK, Black does not have a rook, but both parties still have three major pieces.

And the positional side? One important difference is that Black's king is in a vulnerable position. Another advantage for White is that its bishops control the a4-e8 and a3-f8 diagonals limiting the freedom of movement of Black's king or Black's other 3 pieces.

Sep-08-05
Premium Chessgames Member
  patzer2: Here's some analysis with the ChessGames.com Opening Explorer and Fritz 8:

<1. d4 d5 2. c4 dxc4> This is the accepted variation of the Queen's Gambit. More popular is the declined variation with 3...e6 or 3...c6. <3.e3 e6> Not good for Black is the trap 3... b5?! 4. a4! c6? 5. axb5 cxb5? 6. Qf3 <4. Bxc4 c5 5. Nf3 a6 6. O-O Nf6 7. Nc3> More popular alternatives are 7. a4 as in A Riazantsev vs Rublevsky, 2005, 7. Qe2 as in
Yusupov vs Shirov, 2002, 7. Bb3 as in Dreev vs Karjakin, 2005 and 7. dxc5 as in Kiril Georgiev vs H Stevic, 2005. Of these tries, 7. Bb3 has the best winning percentage with White taking 37% wins to Black's 14% in the OE's current 243 games. <7...b5 8. Bb3 Bb7 9. Qe2 Nbd7 10. e4!?> This is a rare try, which appears only three times in the ChessGames.com Opening Explorer. The other two games ended in draws in Ivkov vs P Clarke, 1960 and Gligoric vs W Pietzsch, 1960. More popular here is 10. Rd1 as in Grischuk vs Filippov, 2004. Although White won this game, in the OE's current sample of 128 games, Black won about 36% to White's 28%. <10...cxd4 11. Nxd4 Bc5> Here Fritz 8 recommends11... b4 12. e5 bxc3 13. exf6 Qxf6 14. bxc3 Rd8 =. <12. Be3 Qb6 13. Rfd1 Ne5 14. Rac1 Rc8 15. Na4! bxa4 16. Bxa4+ Ke7> Not 16... Kf8?? 17. Rxc5 . <17. Rxc5 Rxc5 18. Nb3 Rhc8?> This move loses. Instead, holding with about even chances for Black is 18... Nxe4! 19. Nxc5!

[(A) 19. f3? Rc2 20. Qxc2?? (20. Qe1 Ng5! ) 20... Qxe3+ 21. Kh1 Nf2+ 22. Kg1 Nxf3+ 23. gxf3 Nd3+ 24. Kg2 (24. Kf1 Qxf3+ 25. Kg1 Qh1#) 24... Qxf3+ 25. Kg1 Qh1#;

(B) 19. f4 Bd5 20. fxe5 Rc2 21. Qd3 Qc7 22. Nd2 Rxd2 23. Qa3+ Kd8 24. Bxd2 Nxd2 25. Rxd2 Qxe5 26. Rf2 f5 27. Qc5 f4 28. Qb4 f3 29. Bb3 Bxb3 30. axb3 Qe3 31. gxf3 Qg5+ 32. Kh1 Qc1+ 33. Kg2 Qg5+ =.]

19... Nxc5 20. f4 Ng6 21. f5 Ne5 22. Qf2 Rc8 23. Qh4+ f6 24. b4 Bf3 (24... exf5 25. bxc5 Qb2 26. Bf2 h6) 25. Rf1 (25. gxf3?? Nxf3+ ) 25... Ng4 (25... Bxg2? 26. Bxc5+ (26. Kxg2?? Qb7+ 27. Kg1 Nxa4 ) 26... Rxc5 27. bxc5 Qb7 28. Qh5 ) 26. bxc5 Rxc5 27. Qh5 (27. gxf3 Nxe3 ) 27... Nxe3 28. Qe8+ Kd6 29. Qxe6+ Kc7 30. Qe7+ Kb8 31. Qxe3 =.

<19. Nxc5 Rxc5 20. b4> Throwing away a sure win for equality is 20. Bxc5+? Qxc5 =.

<20... Qxb4 21. Qd2 1-0> Black resigned, but play in the final position might have continued 21...Qxd2 (21... Rc4 22. Qd8#) 22. Bxc5+ Kd8 23. Rxd2+ Kc8 24. Bd4 Nc6 25. Rc2 Kd7 26. f3 . White with the exchange up and the two Bishops has a decisive advantage (+2.78 @ 14 depth per Fritz 8).

Sep-08-05
Premium Chessgames Member
  kevin86: Black has a way out of mate,but his game is smashed to bits:21...♕xd2 22 ♗xc5+ ♕d6 23 ♗xd6+ ♔d8 24 ♗xe5+ etc,etc-after that,it gets ugly.
Sep-12-05  Kangaroo: Let us all look at the material on the board after <21 ... Qxd2 22. Bxc5+ Kd8 23. Rxd2+> - White is an exchange ahead.

I admit that my attempts to "prove" that Black will encounter further losses were incorrect.

My acknowledgements to <EmperorAtahualpa> who has detected and <fixed> (or <refuted>) all my errors.

However, the position is <clearly> won for White and lost for Black.

The <final verdict> was pronounced by <kevin86>: <24. Bd4 Nc6 25. Rc2 Kd7 26. f3 . White with the exchange up and the two Bishops has a decisive advantage (+2.78 @ 14 depth per Fritz 8)>

Dec-27-05
Premium Chessgames Member
  al wazir: Why is this game singled out as "notable"? Is it supposed to be a good advertisement for Leitao's tactics? I still think black should play 24...Nd5 and keep playing.
Feb-17-09
Premium Chessgames Member
  plang: 13..0-0 would have been safer though Black is not yet in trouble. By avoiding a4 and playing 7 Nc3 White avoided the main lines and dared Black to play ..b4. 14 Rac1 was new; with 14 a4 White would have transposed back into one of the popular theoretical lines. Baburin's explanation of 14..Rc8?: "I have noticed that once in a while I forget to castle.."; 14..0-0 15 f3..Rfd8 16 Nc2 would have been equal.
Jun-21-12  vinidivici: the problem here is : is it 15.Na4 is that sound? any refutation?
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