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Anatoly Karpov vs Mike W Wills
Simul, 26b (1972) (exhibition), London ENG, Jan-22
Alekhine Defense: Modern. Alburt Variation (B04)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Jun-05-13  Dr. Funkenstein: Nxd5 is clearly the move, but this isn't a Mon/Tues puzzle so there must be more... White also has to find 61. Kc5 and 62. e7 although 62. Kxd5 seems to transpose to the game line as well as agb2002 points out above
Jun-05-13  leow: does 59. Ne2 f0llowed by Nf4 also win?
Jun-05-13  morfishine: <59.Nxd5> A powerful theme: the passed pawn is stronger than the Knight

<59...exd5 60.e6 Nb8 61.Kc5> The key move, avoiding 61.e7? 61...Nc6+

Jun-05-13  leow: to answer my own question: No
Jun-05-13  Nick46: <leow: does 59. Ne2 followed by Nf4 also win?> My line of thought too.
Jun-05-13  Nick46: <leow: to answer my own question: No> Thanks, we must have posted simultaneously.
Jun-05-13  morfishine: FWIW: <34...b5> seems weak giving Black weak pawns all across the 6th rank; Given the position, opening the a-file instead of trying to keep the position closed seems flawed
Jun-05-13
Premium Chessgames Member
  OhioChessFan: I sure wish I could see tactics like I see endgames. Got this faster than both Monday and Tuesday.
Jun-05-13  nottogoodabeginner: I surprised myself and actually got this and I am not even a rated player
Jun-05-13  zb2cr: Simple Knight sacrifice. 59. Nxd5, exd5; 60. e6, Nb8; 61. Kc5 and White wins.
Jun-05-13  gars: I thought about 59) Na4, then 60) Nf6 and the Knight sacrifice went unnoticed. "Anaurosis sacchistica", in Tarrasch's words.
Jun-05-13
Premium Chessgames Member
  Benzol: Is Mike W Wills the same player?
Jun-05-13
Premium Chessgames Member
  Benzol: And what about M W Wills ?
Jun-05-13  1.e4effort: <ohiochessfan> I too am an Ohio chess fan, and I completely agree with you. Today's solution is as plain as the nose on my face. Sac the Knight and there's no way to stop the pawn advance.
Jun-05-13  mistreaver: Wednsday. White to play. Medium/Easy. 59?
59 Nxd5 seems winning:
A) 59...exd5
60 e6 and the pawn can+t be stopped due to fact that f6 square is not available for the black knight. B) 59... Kb7
60 Nf4 Nf8
61 Kc5 Kc7
62 d5 exd5
63 Kxd5 Kd7
and i think white is just winning here.
Time to check.
------------
Ok i was superficial andi missed Nb8 resource, but Nxd5 is too obvious anyway.
Jun-05-13  Abdel Irada: Part of the reason this endgame puzzle seemed easy to many of us, I suspect, is that it *is* a puzzle. We have learned to expect a sac, and 59. Nxd5 is therefore everyone's first candidate move. From there, it takes little work to establish that the move wins.

I can't help wondering, though: How many of us would find this move so obvious in an actual endgame, where taking foolish risks with potentially unsound sacrifices can *cost* us and the clock ticks inexorably on?

(Okay. From the perspective of an experienced player, this <particular> sac is pretty obvious, and we may have been playing for such a position with it in mind. But apply the same principle to some other puzzles/studies in which a similar sacrifice seemed obvious as a solution, but might well elude even a strong master OTB.)

Jun-05-13  YetAnotherAmateur: Nxd5 is plainly the best approach to this position, because it eliminates the barrier for white to push e6-e7-e8.

I think Na4 may be playable, though, with the longer and less elegant plan of forcing the king through to d6 and pushing black away with some careful zugzwang and opposition play.

Jun-05-13  Memethecat: Pseudo-sac 59.Nxd5 exd5 60.e6 Nb8 61.Kc5 (not 61.e7 Nc6+ 'oops') looks ok..
Jun-05-13
Premium Chessgames Member
  kevin86: White picks off a pawn,the knight was expendable. Even a piece ahead,black couldn't stop the connectors.
Jun-05-13
Premium Chessgames Member
  chrisowen: A victory it is smoked in b8 enough be free pawne off excuse me's sorry coming through can in effect o,

60.e6 nb8 dig mind binds in het up for local effect,

stale in effront it he in just again do it brave in b8 off if thin picking c5 electric in cool it aid in among e5 e6 a key also nb8 allow ground a 61.Kc5 again batten doon the hatches cuffed in huff a ok kingb7 go to mitigate ai blow c5 in clinking again iron fetcha 61...Kb7 62.e7 na6+ alternative,

counting back eight-ball 59...Kb7 lack gusto floods,

60.nf4 and capsized in feel it urge you in heading a oomph all ie flowed be 62.e7 in tooti.

Jun-05-13  Gato: 65 Kc6 mates in 8.
Jun-05-13  M.Hassan: "Medium"
White to move 59.?
Equal

59.Nxd5 is almost obvious
59..........exd5
60.e6
<if...Nf8 61.e7 and pawn will be promoted> 60........Nb8
This is critical moment in the game,
<if 61.e7 Nc6+ forking the King and the hard-progressed pawn>

61.Kc5
White can eliminate Black's d pawn as well and can end up having two connected passed pawns that could be as deadly as having a Queen 1-0

Jun-05-13
Premium Chessgames Member
  eternaloptimist: I saw the solution 59.♘xd5 almost instantly. Clearing the path for the e♙ creating a passed ♙ is the main objective. Wills did really well to last this long against Karpov but he didn't play quite well enough to hold his position.
Jun-05-13  James D Flynn: Material is equal but White’s K is one file closer to the pawns and his pawns ar more advanced suggesting a N sacrifice to crea passd pawn. 59.Nxd5 exd5 60.e6 Nb8 51.Kc5 Kb7 52.e7 Na6+ 53.Kd6( shutting out the Black K, if Kxd5 Nc7+ 53.Ke5 Ne8 54.Ke6 Kc7 55.d5 Nd6 56.Kf6 Kd7 57.Kxg6 Kxe7 58.Kxh5 Kf6 and White has winning chances but it will be tricky) Nc7 59.Kd7 Kb6 60.e8=Q Nxe8 61.Kxe8 Kc4 62.Kf7 and White wins both Black K-side pawns with and easily won K and pawn ending.
Jun-05-13  Patriot: 59.Nxd5 exd5 60.e6 - looks good.

59.Nxd5 Nxe5 60.dxe5 exd5 61.e6

This looks like a winner.

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