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Hikaru Nakamura vs Yasser Seirawan
US Championship (2012), St Louis, MO USA, rd 11, May-19
French Defense: La Bourdonnais Variation (C00)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 14 OF 14 ·  Later Kibitzing>
Oct-17-13  Nick46: Any other takers for reverting back to the three day week? :o)
Oct-17-13  Abdel Irada: Once again, it appears I post too late to add anything to what <Phony Benoni> has already said.

Black's position would probably be only slightly worse, even given the ominous Q@c3-K@g7 lineup, *if* White couldn't drive the queen from e6 and open the diagonal. Once he does that, the game is mere apocalypse for Black.

Oct-17-13
Premium Chessgames Member
  morfishine: I've see this one: Attack the Queen with <29.Nd4>, then open up the diagonal with <30.e6>, then crunch

Why can't I ever do this?

*****

Oct-17-13  woody b: <independentthinker> i guess you refer to the line
29. Nxc4 dxc4 30. Nxe7 Qxe7 (Nxe7 31. Rd6!) 31. Rd7! Qe6 (Qxd7 32. e6+; 31. ... Qe8 32. e6+ Kg8 or Kh6 and white will win after 33. Rxf7) 32. Rad1 which was also my 'solution'.
it is probably winning but not as fast as in the game
Oct-17-13
Premium Chessgames Member
  Bartimaeus: <Jausch46, LTJ> 30. Nxe6+ seems quite good. However, after

30. Nxe6+ Kf7 31. Qg7+ Kxe6 32. Qxg6+ Bf6

though white has definitely the better position, i didn't see as clear an advantage as i saw after Nxf5+. Maybe the engines have a stronger continuation after Nxe6 but the above line is why i chose Nxf5+ over Nxe6+. Overall, Nxf5+ seems a cleaner win to me.

Oct-17-13
Premium Chessgames Member
  Bartimaeus: Apologies, Nxe6+ too wins clearly. Taking my above line further,

31. Nxe6+ Kf7 32. Qg7+ Kxe6 33. Qxg6+ Bf6 34. Bd4 Rf8 35. Re1+ and the bishop is won.

Both lines appear to be equally good.

Oct-17-13
Premium Chessgames Member
  kevin86: Boy! Black's game is coming apart quickly!
Oct-17-13
Premium Chessgames Member
  M.Hassan: "Medium"
White to play 29.?
Equal.

White can start to attack the Queen:
29.Nd4 Qd7
30.e6 fxe6
31.Nxf5++
This double check, opens up the diagonal for the White Queen attack 31.........Kf8
32.Qg7+ Ke8
33.Qxg6+ Kd8
34.Nxc4 Rxc4 (not...dxc4)
35.Qg8+ Qe8
36.Qxe6 Rc5
37.Rxc5+ Kc7
38.Nxe7
Black is now shattered.

Oct-17-13  LIFE Master AJ: 29.Nd4!, followed by 30.e6! is instantly decisive, I annotated this game for another state's chess newsletter.
Oct-17-13  LIFE Master AJ: The threat is 31.NxP/f5+ with mate to follow.
Oct-17-13  Overgod: Too easy.
Oct-17-13  Vincenze: Seirawan got into a real mess. That was an easy to medium.
Oct-17-13
Premium Chessgames Member
  chrisowen: Easy king hunt back e5 pawn pedal effect knight c6,

in d4 flow delve in every say long clink knight fad,

cuffer con queen e6 I negligent in rich mind you,

got the nack head knight fetch in cadence ogle am he don I st c4 hint a pinto giving g7 king I oomph,

it now in be effects again cruise a wave in blew offer e6 feels right knight aka dead hand draw f5 a team cycle check off a bet bishop e7 at chin hat better man up bullseye have one too fades in d4 away baffles f8 a quagmire stem the flow a tidy,

devious again bind c4 at good game see king expose g7 I ment pe5 wiggy wam d5 back between aim d5 and f5 seek less eg a pawn blow in fatefuls also cred,

knight cage boat has sailed it eddy free in light a dilemma have band knight queen a gotcha dutiful in,

bay be guffaw chubb c6 naka bad in a foot f8 allows a ground to knight for a fogs in d4 changes a do the math ah dip to c4 my lou g7 ie hadlong time 5d,

pawn jettison off f5 he harbour intentions queen be free segment bone for creep a fingers light scupper line e6 be harangues sad to churlish rook inch,

effects c8 hastens the end beck and call bin feds at enumerate am bonafides 29.Nd4 threatens aid up right e6 long pad handle d7 and er catches on c3 plus am d4 inclines a double check a g7 he trap in the fox files pawn growl 30.e6 fxe6 31.Nxf5++ canter c3 comes around g7 afters kip a 31...Kf7 seek you head to d8 orange boom ago low.

<33.Nxc4 Rxc4> wins a piece silver spoon to gain e6 and d5 a door alive no more load win chest queens g8 e6 d5 c4 c5 d6+ mate in twelve.

Mugglers abound c6 ban d4 sketch up pa lol ie c6 knight good nay-sayers see bid one d4 did c4 fane,

overstep the mark aid jot it down e5 mission bades on good game e6 clears the path finders keepers lock etc queen and f5++ white fanfare the trumpet accent in d4 rumble pawn it dog tooth in fact e5 wins e6 fow rider I jocular age the boot interesting it hand to play f5 cake walk c6 success,

in bad call f8 at suffix shine g7 bind in cooed it down a nip I rate f5 capture inch eg wind wads a fetch honky f7 I bag a spot e6 in d7 rest is a mop up job.

Oct-17-13
Premium Chessgames Member
  JG27Pyth: Solved it, and I'm not surprised Seirwan resigned after 30.e6... but continuing 30...fe 31.Nxf5+ Kf7 32.Qg7+ Ke8 the best I can find for white is 33.Qxg6 with white up a piece and holding all the cards ( ) ... I don't see a clear continuation to mate. White has play against both the Black King and Black queen which pretty quickly lead to even more material lost for black... but does somebody see a clean path to mate, cuz I couldn't find it?
Oct-17-13  galdur: Nice job by white. Made it look simple. I seemed to be reminded of Bobby.
Oct-17-13
Premium Chessgames Member
  Penguincw: I considered 29.Nxe7.
Oct-17-13
Premium Chessgames Member
  Patriot: 29.Nxc4 looks like the beginning of a nice combination.

29...dxc4 30.Nd4 Qd7 31.e6 (attacking the queen while paving the way for a double check) fxe6 32.Nxf5+ at least wins the queen.

29...dxc4 30.Nd4 Qd7 31.e6 Qb7 32.Nxf5+ Kf8 33.Qg7+ Ke8 34.Qxf7#

29...Rxc6 30.bxc6 Qxc6 looks like no problem for white. I'd say this is the best choice for black.

29...Nxf4 30.Bxf4

Oct-17-13
Premium Chessgames Member
  Patriot: Ok, so 29.Nxc4 wins and 29...Rxc6 is best for black. But there's no doubt, 29.Nd4 is more direct and much cleaner.
Oct-17-13
Premium Chessgames Member
  Patriot: <morf> <Why can't I ever do this?> You have the same problem?? Me to! :-)

<agb2002> <29.Nd4 is better than 29.Nxc4 because the latter permits the intermediate 29... Rxc6.> Exactly! I went with 29.Nxc4 as well and there is certainly nothing wrong with it.

Oct-17-13  savuflorin1983: Nxc4 might be answered by Rxc6, and there is no Nd4 anymore :)
Oct-17-13  newton296: 29)Nd4! naka bomb!
Oct-17-13
Premium Chessgames Member
  LoveThatJoker: <Bartimaeus> Thanks for the note, man. When I checked the lines last night with the engine, it stated that yours is superior in that the Black K is basically on the edge of the board with a thirsty White Q and N looming forbodingly over him.

In the line I went with, the moves you presented are (from what I recall) in keeping with what Stockfish presented, but the Black K seems to have more options.

Therefore, your line is clearly the better of the two. I think your line was in the +10.00 (or more even); whereas mine was in the +6.00/+7.00.

Thanks for looking at it though, I appreciate you taking the time to do so sincerely!!

LTJ

Oct-17-13
Premium Chessgames Member
  DiceToThat: I really liked this puzzle. Usually the winning move is something much more aggressive, but here the crushing blow seemed like more of a retreat. All sorts of terrible things happen to Black after that Queen moves.
Oct-03-16
Premium Chessgames Member
  Xeroxx: Tricky tricky.
Jan-19-17  williamschill: Does 28..Bc5 offer any better survival chances?
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