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Hikaru Nakamura vs Ivan Cheparinov
"School of Hard Naks" (game of the day Apr-11-2006)
Cuernavaca Young Masters (2006), Cuernavaca MEX, rd 9, Feb-11
Semi-Slav Defense: Botvinnik System. Lilienthal Variation (D44)  ·  1-0



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Given 16 times; par: 70 [what's this?]

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Kibitzer's Corner
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Feb-11-06  izimbra: What was the logic of 29...c2? Why exchange a passed point for a blocked one? Did black just miss the move Qh5 defending c5?
Premium Chessgames Member
  Phony Benoni: By move 29, Black is in trouble. White has a number of ideas; for instance, he can consider Qd6 and Bf4 with mating ideas. If Black defends by 29...Qa1, White trades queens and starts advancing his kingside pawns, which are far more dangerous than Black's queenside pawns.

Black's pawn on c3 looks impressive, but there doesn't seem to be any way to make it a threat. By playing ...c2, Black slows White's momentum a bit while getting his b2-bishop back into action on the kingside.

29...c2 didn't help much in the long run, but did Black have a good alternative?

Apr-11-06  CapablancaFan: <izimbra>I believe the point of 29...c2 were a couple of things. First it gains a much needed tempo for black as the balance at this point of the game is slightly tipped in white's favor. Chances of the c3 pawn making it to the queening square were remote at best. Also, as long as this pawn remained on c3 the dark squared bishop basically was out of play, and a piece out of play is the same as being a piece down. Lastly, white's kingside pawns were ready to roll and black needed to find answers for that problem (obviously with no success).
Premium Chessgames Member
  An Englishman: Good Evening: I'm embarrassed to write this, but I can't figure out why Black avoided 22...Ba6. The best I can see (without a board) is 23.Qa2,Bxf1; 24.Bxf1,Nd2; 25.Nxd2,cxd2; 26.Bxd2,Bb4 and then what?
Apr-11-06  crafty: 22...♗a6 23. ♕c2 ♕b4 24. ♘xc3 ♖d7 25. ♖b1 ♘xd4 26. ♗xd4   (eval 1.95; depth 13 ply; 250M nodes)
Apr-11-06  makaveli52: as far as my knowledge of this opening, i believe 12...Ba6 is a novelty and a weird one, because the bishop does evntually return to Bb7, its normal spot... I guess its purpose was to strengthen b4, a thematic move in this variation, but it did not seem to work out. Does anyone know anything of this move as a variation or of its strength/weakness?
Apr-11-06  Confuse: go hikaru! : )
Apr-11-06  Dr.Fritz: Cool game!
Apr-11-06  jooj: i wonder if there is a better response to 9-Nxg5.Maybe N on f6 to d7 or d5 followed by B to f7 breaking the pin.
Apr-11-06  dakgootje: havent got much time to look at it, so just a quick thought: what about 40. Bg5? Probably a bad move as i expect black to play something like Ba1 or some other move were is stays on the a1-h8 diagonal, but i found it creative enough to ask ;-)
Apr-11-06  EmperorAtahualpa: <dakgootje> 40.Bg5? Qxd7 41.Bxf6 Bb3! 42.Bxb3 Qxh7=
Apr-11-06  Cyphelium: <dagootje & EmperorAtahualpa> On 40. ♗g5 ♕xd7 41. ♗f6 ♗c2 white should of course play 42. h8♕. Then the position after 42.- ♗xc2 looks unclear. It is stronger to exchange queens on move 40, since the endgame is safely winning for white.
Apr-11-06  itz2000: Great game!
I think a better move as 29 is (as black) Qb4 followed by progressing of a7 pawn!
Apr-11-06  Marmot PFL: Another Naka game, must be his birthday.
Question, instead of 16...Bb7 what was wrong with Nxd4?
Apr-11-06  dakgootje: <Cyphelium> What about 40. Bg5 Qxd7 41. Bxf6 Bb3 42. h8Q Bxc2 43. Qb2+, seems to win the black bishop doesnt it? So if black doesnt have a good counter-move, which it probably has, then white is up a bishop, and then i think the endgame is winning for white also.
Premium Chessgames Member
  kevin86: Black seemed to spend a lot of capital to gain a passed pawn and then he sacs it for no reason. No wonder,he lost:(
Premium Chessgames Member
  Ezzy: H Nakamura (2644) - I Cheparinov (2625) [D44]
Cuernavaca Young Masters Cuernavaca MEX (9), 11.02.2006 1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.Nf3 e6 5.Bg5 dxc4 6.e4 b5 7.e5 h6 8.Bh4 g5 9.Nxg5 hxg5 10.Bxg5 Nbd7 11.g3 Qa5 12.exf6 Ba6 13.a3 0–0–0 14.Bg2 Nc5 15.0–0 Nb3 16.Qf3 Bb7 17.Rad1 b4 18.Ne4 bxa3 19.bxa3 Rd5N <This seems to be the new move in this ultra sharp position. Usually 19...Bxa3 is played, and then 20 Be3 Qh5 where queens are exchanged. 19...Rd5 does have the immediate threat of 20...Rxg5>. 20.Be3< 20 Qe3 must be worth some analysis as it protects the bishop and also activates the bishop on g2 which is pointing menacingly at the rook on d5>. 20...Bxa3 21.h4 c3 22.Qe2 <Heading for c2 when Nakamura will be threating 24 Nxc3 with a big advantage to white. So blacks next is essential> 22...Bb2 <Cheparinov still threatens 23..Ba6> 23.Qc2 Na1 <There is a minefield of tactics to solve in this complex position. Not for the faint hearted.> 24.Rxa1 <Here is another interesting forcing line. 24.Qb1 Ba6 25.Rfe1 Bc4 26.Nc5 Qb4 27.Bxd5 c2 28.Bxc4 cxb1Q 29.Ba6+ Kc7 30.Rxb1 Threatening 31 Re2 and 31 Nd3 and white wins another piece and the game.> 24...Bxa1 25.Nc5 Rxc5 <If the rook tries to escape 25...Rf5 then 26 Nb3 winning the bishop. [25...Bb2 and Cheparinov must have seen nasty things like 26.Bxd5 exd5?? (26...cxd5 27.Na4 Ba3 28.Nxc3 and blacks king is dangerously exposed.) 27.Bf4 Threatening mate in 2 - 28 Qc5+ Kd8 29 Qd7 mate.> 26.dxc5 Bb2 27.Rd1 Rd8 28.Be4 <28.Rd6 Looks extremely strong Followed by 29 Qh7> 28...Rxd1+ 29.Qxd1 c2 30.Bxc2 Bxf6 31.Qh5 Qc7 32.Qh7 Ba6 33.Qg8+ Kb7 34.h5 Bc4 35.h6 Bd5 36.h7 Qe5 37.Qxf7+ Kc8 38.Qe8+ Kb7 39.Qd7+ Qc7 40.Qxc7+ Kxc7 41.g4 Kd7 42.g5 Bh8 43.g6 Ke7 44.Bg5+ 1–0

Great game by both players. But Nakamura was outstanding in this game. He calculated everything to near perfection .Wonderful stuff!!

Premium Chessgames Member
  Ezzy: <An Englishman - 22...Ba6. The best I can see (without a board) is 23.Qa2,Bxf1; 24.Bxf1,Nd2; 25.Nxd2,cxd2; 26.Bxd2,Bb4 and then what?> After 25...cxd2 26 Qxc6+ Qc7 27 Ba6+ Kd8 28 Qa8+ Kd7 29 Qxh8 :-)

If black plays 22..Ba6 then the tactics still go against him eg 22...Ba6 23.Qc2 Bxf1 24.Bxf1 Qb4 25.Nxc3 Ra5 26.Nb5 <Threatening 27 Qxc6+ Kd8 28 Qc7+ Ke8 29 Qc8 mate.> 26...Kb7 27.Rb1 Rxb5 28.Bxb5 cxb5 29.Rxb3 Qa5 30.Qe4+ Kc7 31.Bf4+ Kb6 32.Qc2 Kb7 33.Rc3 Rd8 34.Rc7+ Ka6 35.Rxf7 With 36 Be3 next, and black cannot survive.

Premium Chessgames Member
  al wazir: <itz2000: I think a better move as 29 is (as black) Qb4 followed by progressing of a7 pawn!> I agree. I was going to suggest 29...Qd8, followed by pushing the a ♙. Alternatively, black can force the ♕ swap with 29...Qa1, since white's ♕ becomes more active and black eventually had to swap anyway.

Any of these would be better than the move played.

Apr-11-06  dakgootje: So anyone already thought of a reason why 40. Bg5 Qxd7 41. Bxf6 Bb3 42. h8Q Bxc2 43. Qb2+ doesnt work???
Premium Chessgames Member
  al wazir: <dakgootje>: I would be proud of myself if I had thought of that. But doesn't 40...Bh8 defend adequately?
Apr-11-06  dakgootje: <al wazir> Yes im very proud of myself because of this...*coughs* ;-)

Nah okay serious again: My first post about this game was <havent got much time to look at it, so just a quick thought: what about 40. Bg5? Probably a bad move as i expect black to play something like Ba1 or some other move were is stays on the a1-h8 diagonal, but i found it creative enough to ask ;-)>, so i already thought of the Bh8-move, but then EA and Cyphelium went on a little by analysing the Qxd7-possibilty, and you just came in when i presented my conclusions about that move, but im pretty sure as i stated already that the variation gets refuted by just moving the black bishop to some other square on the a1-h8 diagonal ;-)

Apr-11-06  itz2000: Okay... after some rethoughts, here's what black should do in my opinion

29..Qa1 30. Qxa1, Bxa1 31. h5(?), a5 32. h6, c2 33. h7, Bxf6 34. Bxc2, Bh8 35. Bc4(?),Ba6 36 (?), Bb5 ...

Apr-11-06  GeauxCool: "Uhm, let me see if I have this right. Do I promote them like this?" Says Cheparinov... "No," replies Nakamura, "It's more like this."
Apr-11-06  CapablancaFan: <kevin86: Black seemed to spend a lot of capital to gain a passed pawn and then he sacs it for no reason. No wonder,he lost:(> See my earlier post for an explanation of this.
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