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Hikaru Nakamura vs Alexey Shirov
Corus (2010), Wijk aan Zee NED, rd 7, Jan-23
Sicilian Defense: Lasker-Pelikan. Sveshnikov Variation (B33)  ·  1-0
ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 14 OF 14 ·  Later Kibitzing>
Jan-23-10  nathanschulz: <<Shirov can, at best, commiserate with Zappa: "Weasels ripped my Svesh!">> Most def a GOTD pun.
Jan-23-10  notyetagm: <drummer61: @notyetagm: nice with the LLCool J! Go Naka!>

I'm gonna knock you out
Naka said knock you out

I'm gonna knock you out
Naka said knock you out

:-)

Jan-23-10  Ulhumbrus: On 36...Qc5 (instead of 36...Ka7) 37 b6! Qxb6 38 Qa3 threatens 39 Rb3 and 39 Rxd6. One variation is 36...Qc5 37 b6 Qxb6 38 Qa3 Kc7 39 Rb3 Qc5 40 Rb7+ Kd8 41 Rxd6+ Ke8 42 Qxc5 Rxc5 43 Rb8+ Rc8 44 Rxc8 mate
Jan-23-10  MaxxLange: "Weasels ripped my Svesh"

THE PEOPLE HAVE SPOKEN, Chessgames.com!

Jan-23-10  steamroller: An impressive win for the Chinese guy. He put an end to Shirov's great start. China would be proud.
Jan-23-10  laskersteinitz: Naka dropped a bomb with this win today. Let's see if he can back it up with outright first in the tournament (which I doubt).
Jan-23-10  jul059: steamroller, are you kidding? he's not Chinese...
Jan-23-10
Premium Chessgames Member
  Check It Out: <<SamAtoms1980: Naka ippon! Naka no kachu (I hope I spelled this right, zanshin would know).> <Sam> Not sure. In the style I studied, 'wazari' was half-point, 'ippon' was full.>

(N)aka no kachi! red winner!

Jan-24-10  vuchamchi: i still dun understand why black resigned here
Jan-24-10
Premium Chessgames Member
  tamar: 41...Kb8 42 Rd3 Qxd3 43 Rxd3 Bxd3 44 Qd8+ picks off the rook is one way for White to win
Jan-24-10  SamAtoms1980: <zanshin: <Sam> Not sure. In the style I studied, 'wazari' was half-point, 'ippon' was full.>

Exactly...

<Check It Out: (N)aka no kachi! red winner!>

Yeah, that was the part I wasn't sure about. When Japanese has a silent vowel, it's usually a U, but I guess this is an exception. I knew the phrase from karate training but never saw it spelled out.

In karate and judo competitions the opponents are each designated colors, "Aka" is red and "Shiro" is white. It would have been perfect if Nakamura had been black and Shirov white.

Jan-24-10  manakin: On <10...fxe4> comes 11.Nxe4 d5? 12.Qxd5! Qxd5 13.Nf6+ Queens down and white's a pawn up.
Jan-24-10  manakin: My guess it's theory, but since I don't know it, maybe others also don't.
Jan-24-10
Premium Chessgames Member
  Eyal: <On 36...Qc5 (instead of 36...Ka7) 37 b6! Qxb6 38 Qa3 threatens 39 Rb3 and 39 Rxd6.> Black doesn't have to cooperate with 37...Qxb6? here - he can play something like 37...Rbe8 (now that White no longer has Bc6) and it's not clear how White proceeds. But actually 36...Qc5, which I suggested in my previous post, seems to be bad simply because of 37.Qxa5 - the rook on e3 is not really en prise, since taking it would result in a quick mate after 38.Qa8+, and in case of 37...Ra7 38.Qd2 Rxa4 39.Re2! the white queen goes to f4, where it creates threats both on d6 and of penetration on f8. This illustrates how difficult it is for Black after 36.Re3 to find moves that don't damage his position, let alone improve it, and thus the basic soundness of Nakamura's strategy of "making a few waiting moves and see if he caves in", even if he didn't find the immediate killer 35.c5.
Jan-24-10  Ulhumbrus: <On 36...Qc5 (instead of 36...Ka7) 37 b6! Qxb6 38 Qa3 threatens 39 Rb3 and 39 Rxd6.> Black doesn't have to cooperate with 37...Qxb6? here - he can play something like 37...Rbe8 (now that White no longer has Bc6) and it's not clear how White proceeds.> White proceeds with 38 b7! and then perhaps attacks the a5 pawn at his leisure eg by Rf6-f1-b1-b3-a5 xa5-a8

(But actually 36...Qc5, which I suggested in my previous post, seems to be bad simply because of 37.Qxa5 - the rook on e3 is not really en prise, since taking it would result in a quick mate after 38.Qa8+,> I assume that you mean 38 Qa8+ Kc7 39 Qc6+! Kd8 40 Rxd6+! Rd7 41 Qxd7 mate

Jan-24-10
Premium Chessgames Member
  Eyal: <On 36...Qc5 (instead of 36...Ka7) 37 b6! Qxb6 38 Qa3 threatens 39 Rb3 and 39 Rxd6.> <Black doesn't have to cooperate with 37...Qxb6? here - he can play something like 37...Rbe8 (now that White no longer has Bc6) and it's not clear how White proceeds.> <White proceeds with 38 b7! and then perhaps attacks the a5 pawn at his leisure eg by Rf6-f1-b1-b3-a5 xa5-a8>

I suppose that should be Rf6-f1-b1-b5, otherwise it doesn't make much sense - no, this is actually an example that White's position isn't so absolutely superior (or that Black's position isn't so helpless) that White can allow himself to play carelessly and waste so much time, instead of grabbing an immediate winning chance like 37.Qxa5; e.g. 37.b6? Rbe8 38.b7? Re5 39.Rf1 Bf5 40.Rb1 Bd7 (defending b5) and White may have lost his advantage.

Jan-24-10  Ulhumbrus: <Eyal: <On 36...Qc5 (instead of 36...Ka7) 37 b6! Qxb6 38 Qa3 threatens 39 Rb3 and 39 Rxd6.> <Black doesn't have to cooperate with 37...Qxb6? here - he can play something like 37...Rbe8 (now that White no longer has Bc6) and it's not clear how White proceeds.> <White proceeds with 38 b7! and then perhaps attacks the a5 pawn at his leisure eg by Rf6-f1-b1-b3-a5 xa5-a8> I suppose that should be Rf6-f1-b1-b5, otherwise it doesn't make much sense - no, this is actually an example that White's position isn't so absolutely superior (or that Black's position isn't so helpless) that White can allow himself to play carelessly and waste so much time, instead of grabbing an immediate winning chance like 37.Qxa5; e.g. 37.b6? Rbe8 38.b7? Re5 39.Rf1 Bf5 40.Rb1 Bd7 (defending b5) and White may have lost his advantage.> Actually Black looks lost even then: 41 Rb5! Bxb5 and now the intermediate move 42 Qxa5! Qa7 43 Qxa7+ Kxa7 44 axb5 and Black may be able to do little but wait for the end. On 36...Qc5 White can also take the a pawn at once by 37 Qxa5, so it looks as if White has more than one way to win.
Jan-24-10
Premium Chessgames Member
  Eyal: <Actually Black looks lost even then: 41 Rb5! Bxb5 and now the intermediate move 42 Qxa5! Qa7 43 Qxa7+ Kxa7 44 axb5 and Black may be able to do little but wait for the end.>

Actually it's a draw after 44...Rxd5 and Kxb7, but Black wins easily here with 42...Qxe3 instad of Qa7? since there's no more mate or even perpetual check (43.Qa8+ Kc7 44.Qa5+ Qb6); so 41.Rb5?? even manages to lose.

Jan-24-10  Ulhumbrus: <Actually it's a draw after 44...Rxd5 and Kxb7, but Black wins easily here with 42...Qxe3 instad of Qa7? since there's no more mate or even perpetual check (43.Qa8+ Kc7 44.Qa5+ Qb6); so 41.Rb5?? even manages to lose.> The threat of ..Rxd5 changes matters. The b7 pawn is not so secure then. Not to mention that Black can play ..Qxe3 in reply to Qxa5. This suggests that instead of 38 b7, it may be better to play the Rf6 towards b5 at once: 36...Qc5 37 b6 Rbe8 38 Rf2 Re5 39 Rb2 Bf5 40 Rb5 Qc8 41 Qxa5
Jan-24-10
Premium Chessgames Member
  Eyal: <This suggests that instead of 38 b7, it may be better to play the Rf6 towards b5 at once: 36...Qc5 37 b6 Rbe8 38 Rf2 Re5 39 Rb2 Bf5 40 Rb5 Qc8 41 Qxa5>

This doesn't work either, because instead of 39....Bf5 (which obviously doesn't make sense anymore) Black has 39...Rh5+ 40.Kg1 (40.Kg2 Qc8!) 40...Rf8! and if 41.Rb5 then 41...Qc8! and suddenly Black has a winning attack - another example that White cannot waste too much time, and also that his position has some potential weaknesses as well (like the relatively open position of his king).

Jan-24-10  Ulhumbrus: <<This suggests that instead of 38 b7, it may be better to play the Rf6 towards b5 at once: 36...Qc5 37 b6 Rbe8 38 Rf2 Re5 39 Rb2 Bf5 40 Rb5 Qc8 41 Qxa5> This doesn't work either, because instead of 39....Bf5 (which obviously doesn't make sense anymore) Black has 39...Rh5+ 40.Kg1 (40.Kg2 Qc8!) 40...Rf8! and if 41.Rb5 then 41...Qc8! and suddenly Black has a winning attack> 42 Qxa5 and then what?
Jan-24-10
Premium Chessgames Member
  Eyal: <42 Qxa5 and then what?> 42...Rh1+.
Jan-24-10  Ulhumbrus: <<42 Qxa5 and then what?> 42...Rh1+.> And then 43 Kxh1 Qh3+ 44 Kg1 Rf1 mate. In that case one alternative is 39 g4 to delay ...Rh5+
Jan-25-10  black.pr0jekt: black pr0jekt > carlsen, topalov, anand and aronian
Jan-29-10  LoveThatJoker: <sofouuk: <Sneaky> well, if going from +6.0 to +1.0 counts as 'knowing what you're doing', then ok. yes as kb2ct said all endings were won for white, but Ka7? did make it very easy>

I replied to your commentary on this game:

N Kosintseva vs V Gunina, 2009

LTJ

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