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Hikaru Nakamura vs Hao Wang
Norway Chess (2013), Sandnes NOR, rd 1, May-08
Russian Game: Nimzowitsch Attack (C42)  ·  1-0

8
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1
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White to move.
ANALYSIS [x]
1-0

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
FEN COPIED

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Given 7 times; par: 54 [what's this?]

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Kibitzer's Corner
May-08-13  hellopolgar: If Naka's last victory Wang Hao vs Nakamura, 2013 against Wang Hao was pure luck, this win shows that Naka no longer has Wang-phobia.
May-08-13  hellopolgar: Well, somehow that didn't come out right. Maybe Hao-phobia would have been a better choice.
May-08-13  SirRuthless: His explanation of why 19. Rd8 + was a bad idea was great. Nice detailed post game analysis and he was calculating 8 and 9 moves deep in several spots with many sidelines. Naka is maturing.
May-08-13  Wyatt Gwyon: Good to see that Wang isn't in Naka's head.
May-08-13
Premium Chessgames Member
  ajk68: 42. Bf3! Zugzwang.
May-08-13  beenthere240: Nice zwug! Can't stop the knight from reaching c7.
May-08-13  Eyal: Black's position is already very difficult when the game reaches 36.b3, but 36...Rd8? is the final mistake since it allows White to gain a tempo with 37.Ne6, which attacks the rook, for clearing the f4 square for the king - and then, with Ke5 prevented, Black is completely strangled.
May-08-13  fisayo123: NICE ZUGZWANG!
May-08-13  EvanTheTerrible: Excellent zugzwang.
May-08-13  JonathanJ: Rd6 will be met by Nc7, attacking d5 and threatening Ne8+ with rook and king fork.
May-08-13  Eyal: Position after 39...c4:


click for larger view

Black was hoping for 40.bxc4 dxc4 41.Bxc4 Rd2 so he could activate the rook, but 40.a4! puts an end to these hopes (while preparing the zugzwang a couple of moves later); as Nakamura mentioned in his comments after the game, a key to this endgame was to keep the black rook inactive. Note that after 40...Rd6 41.Bg2, the attempt to activate it by 41...cxb3 42.cxb3 Rc6 (attacking c3) would fail to 43.c4!

May-08-13  Jambow: Nice game Nakamura using time space and material to win this one!
May-08-13  Jambow: Wang offering a great pin ...24. Nd5 certainly did't help matters either.
May-08-13  SirRuthless: <Eyal> Do you think Nakamura's post game remarks about not playing 19 Re8+ with ...QxR 20.BxQ RxB then 21.Bxf6 Nxf6 because that is what black was hoping for were accurate? Some people think Re8+ was basically winning playing the Q+N+7p vs R+B+N+7p with that closed pawn structure was not a winnable endgame others seem to think it was winning.
May-09-13  Hesam7: <Eyal: Black's position is already very difficult when the game reaches 36.b3>

Is it? It looks like 36...Ke5 followed by ...c4 & ...b5 gives Black an impenetrable fortress.

May-09-13
Premium Chessgames Member
  perfidious: <Hesam7>: On no account should White allow this-36....Ke5 37.f6, followed by fxg7 and Ng6+ looks very good for Nakamura in this line.
May-09-13  Eyal: Yeah, 36...Ke5 37.f6! is very good for White; perhaps Black can still hold, though, after something like 36...c4.

<SirRuthless> I'm not sure if 19.Re8+ Qxe8 20.Bxe8 Rxe8 21.Bxf6 Nxf6 is winnable for White or not, but Nakamura's reasoning for avoiding it (or Wang Hao's for allowing it, for that matter) is perfectly clear - Black would be left with strong pieces and no clear weaknesses, so it would be very difficult to break down his defense (though there's still no clear "fortress" at that stage). Akobian was commenting on the game on ICC and said very similar things about that position to what Nakamura said after the game.

May-13-13
Premium Chessgames Member
  Check It Out: Wang dang sweet zugzwang!
Jan-15-14
Premium Chessgames Member
  FSR: <Check It Out> I like it, though the allusion might be too risqué for CG.com's taste.
Feb-14-15  patzer2: < SirRuthless: His explanation of why 19. Rd8 + was a bad idea was great. Nice detailed post game analysis and he was calculating 8 and 9 moves deep in several spots with many sidelines. Naka is maturing.>

This patzer wouldn't have hesitated to try the "bad idea" 19. Re8+!? Qxe8 20. Bxe8 Rxe8 21. Bxf6 Nxf6 22. Nf5 .

However, Nakamura certainly got a long lasting initiative he converted to a win with the more "mature" 19. Qe2 to .

In the final position, Black resigns in lieu of possibilities such as 42...Rd6 43. Nc7 cxb3 44. cxb3 Ke7 45. Ke5 Rc6 46. Nxd5+ Kf7 47. Be2 Rc5 48. Kd4 Rc6 49. Bb5 Rd6 50. Ke5 Rd8 51. Nxb6 (+7.20 @ 20/40 depth, Fritz 12).

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