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Norman Weinstein vs Michael Rohde
Lone Pine (1977), Lone Pine, CA USA, rd 4, Mar-23
French Defense: Tarrasch Variation. Open System Main Line (C09)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
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Apr-06-06
Premium Chessgames Member
  Peligroso Patzer: In what was probably the last move before first time control (40. ... h4??) Black played a losing blunder. Black actually could have won with: 40. ... f4! 41. gxf4 gxf4 42. Kd4 e3! 43. fxe3 (If 43. Kd3 then 43. ... f3! 44. gxf3 h4 45.Ke2 h3 46. Kf1 e2+ and Black wins.) f3! 44. gxf3 h4 (analysis from Alburt and Krogius, Just the Facts! (2nd ed.), pp. 75-76.
Dec-09-06  Marcelo Adaes: Ok, so I got the correct answer: 40...f4, and the subsequent moves. Was that the goal?
Dec-09-06  chessmoron: <Peligroso Patzer>'s comment sums it up.

I got 40...f4! <41. gxf4 gxf4 42. Kd4 e3! 43. fxe3 f3! 44. gxf3 h4>.

Dec-09-06  GufeldStudent: I thought that f4 was winning and then convinced myself b5 was the right move because it is the Saturday puzzle. Oddly enough, b5 does turn out to draw.
Dec-09-06  dzechiel: Hmmm..., I looked at 40...f4 41 Kd4 f3! 42 gxf3 h4! This looks similar to <Peliqroso Patzer>'s analysis above, but I think his is more exact.
Dec-09-06
Premium Chessgames Member
  WannaBe: Trick puzzle.... Very well done, CG.com.
Dec-09-06
Premium Chessgames Member
  Gypsy: <dzechiel: Hmmm..., I looked at 40...f4 41 Kd4 f3! 42 gxf3 h4!...> 42.g3
Dec-09-06  goldfarbdj: Got another one -- I definitely think this week is easier than usual. I found the line Peligroso Patzer quotes, and also the dzechiel's.

Gypsy says: <<dzechiel: Hmmm..., I looked at 40...f4 41 Kd4 f3! 42 gxf3 h4!...> 42.g3>

Isn't 42. g3 an illegal move? White already has a pawn there (remember that in dzechiel's line white doesn't exchange on f4).

Dec-09-06
Premium Chessgames Member
  Gypsy: <goldfarbdj> Oh, yes. Traveling on an automatic...
Dec-09-06  Happypuppet: Missing weekday puzzles left and right and here I am getting Friday and Saturday...
Dec-09-06  dick50: The series of exchanges show that both players were in great hurry to reach a draw. white king on c4 is momentarily away from pawn on e4 and thus f4 advance is possible. This eventually creates passer on h file which is beyond the reach of white king on c4. Black sqandered his asset on h5 and allowed white king to return to center from where in could control kingside pawns and win.
Dec-09-06  mrjoshherman: I also got this puzzle, but only because it reminded me so much of this former chessgames puzzle, which is also in John Collins' Maxims of Chess: A Pomar-Salamanca vs J Cuadras, 1974
Dec-09-06  NBZ: Got the whole line, but took quite some time on it as I was busy analysing g4 (which is the usual move in setting up a pawn breakthrough but doesn't work here since the g-pawns are doubled).
Dec-09-06  greensfield: Queenside is under control, so which pawn to advance on Kingside? I got there in the end, f-pawn to promote h-pawn.
Dec-09-06  Towershield: Ive seen this puzzle many times already.
Dec-09-06  LutherBlisset: So what happens if white play Kd4 straightaway rather than taking on f4?
Dec-09-06  Creg: This is a somewhat well known endgame puzzle, and I see someone posted the correct answer back in April of 2006. Though I find it interesting that the correct answer is not within the actual comments of the game.
Dec-09-06  Creg: <LutherBlisset> 41. Kd4 doesn't change anything. Black plays the same way.

41...e3! 42. fe f3! 43. gf h4 The exchange at h4 still leaves black with a passed H pawn.

Dec-09-06  LutherBlisset: okay, f3
Dec-09-06  avidfan: Why does quirky <Chess Tutor> only load the game up to 16.Qd2 ?
Dec-09-06
Premium Chessgames Member
  thegoodanarchist: The event and site are given as "Lone", but I think it must be "Lone Pine". Does anyone know for certain?
Dec-09-06
Premium Chessgames Member
  playground player: Oh, boy, got it right when Black in real life got it wrong--what was he thinking of when he moved h4?
Dec-09-06  Larsker: Very instructive. You might say that Black, in the Alburt and Krogius line, exploits a couple of simple facts in chess. 1) Pawns take diagonally (which is why the G pawn is diverted from looking after the black H pawn) and 2) The white King CAN get into the square to look after the Black H pawn but, alas, his own pawns on e3 and f3 are obstructing him.
Dec-09-06
Premium Chessgames Member
  ajk68: <Larsker> Black cannot get into the square of the h pawn. He has to mind the a and b pawns.

The key idea here seems to be that white's own pawns obstruct his king from staying in the square of the pawn.

Dec-09-06  WarmasterKron: Curse these trick puzzles, they get me every time!
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