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Wolfgang Unzicker vs Luis Augusto Sanchez
Stockholm Interzonal (1952), Stockholm SWE, rd 2, Sep-16
Spanish Game: Closed. Balla Variation (C88)  ·  1-0



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Given 47 times; par: 42 [what's this?]

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Kibitzer's Corner
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Jun-02-05  Granite: <inad> It seems clear to me that there is still a lot of chess to be played, and black has a connected passed pawn as well, and b pawn looks weak at the moment, it's possible this could still be drawn or a blunder made in time pressure you never know.

On the other hand this tactic wins by force, and the game is over no questions asked. I'd say the question is posed correctly.

Jun-02-05  chesswonders: If 35. ... ♖a7 36. ♖xe8+ ♕xe8 37. ♕xa7 1-0
Premium Chessgames Member
  OhioChessFan: Simple puzzle. Should have been a Monday.
Jun-02-05  awfulhangover: Yes, simple, but elegant.
Premium Chessgames Member
  Richard Taylor: I comepletely missed this one - and it is very easy (very beautiful finish - elegant) - was looking at 35. ♘e7+ ♖e7 36. ♖c8 ♕b2 37. ♕d6 ♔f8 38. ♗b4 ...but I overlooked 37. ... ♗f8 I look I suppose there was then 38. ♗h6 ..oh well my excuses is I am tired! very humbling to miss the very clever final move - that'll teach me!
Jun-02-05  The beginner: Yup very easy for thursday Rc8 And black must part his queen for rook and knight.
Jun-02-05  alexandrovm: well, I totally missed this one :(
Jun-02-05  howardtheduck: I don't see why 35. ..., ra7
would'nt help black equalize can someone help me??
Jun-02-05  white pawn: What is the definition of a "passed pawn"?
Jun-02-05  farrooj: howardtheduck: because after 35..ra7 there follows 36.Rxb8 Rxa6 37.Rxe8+ Bf8 38.Bh6 winning a second piece.
Jun-02-05  sanferrera: it´s a simple one, but hoe comes that so many of us didn't get it? Maybe because its thursday we were looking for something more difficult...
Jun-02-05  hintza: <white pawn> A pawn is said to be "passed" when there are none of the opponent's pawns in front of it either on the same file or on an adjacent file.

Another elegant puzzle, but quite simple really if you look at the knight's ability to check on e7.

Jun-02-05  Castle In The Sky: This is an x-ray combined with a knight fork. The key to the puzzle is seeing the pressure on c-8. I have been working through two tactics dvds which has greatly enhanced my ability to solve these puzzles quickly and made my playing more enjoyable: Chess Tactics for Beginners and CT-Art 3.0. I highly recommend them. The drills are fun and mistakes are shown through mini-puzzles (5x5) which simplifies the concepts discussed. As games in my range (the embedded mid-level patzer) live or die on tactics, solving puzzles is essential.
Jun-02-05  YouRang: Fairly easy, I thought. Whenever you have a knight in checking range of the opponent's king, you look for combinations that involve a knight fork.

Since the knight at e7 delivers check AND attacks c8, the 35. Rc8 move comes into view. A moment of analysis shows that all reasonable black replies can be countered in such a way that white wins material, and simplifies to an easily won ending.

Premium Chessgames Member
  kevin86: This must be:"put the people on pins (and needles) week."

The puzzle is simple only if you see that the pin is in effect here. Not to mention a tinge of back row mate.

<white pawn> an addendum:a super passed pawn is one that cannot be stopped by neither pawns NOR pieces.

Jun-02-05  smartidiot: Just wondering if the daily puzzle is always from a live game? If so that is very helpful. This one did seem a bit simple.
Premium Chessgames Member
  WannaBe: <smartidiot> no, it can be from a corrsp. game also. I have not seen a computer vs. computer yet, maybe it's because so few mistakes are made to allow a 'puzzle' situation to arise.
Jun-02-05  mizer: I think ra7 gets checkmated not just wining an extra piece. If Ra7, then white follows 36. Qxa7,Qxa7 37. Rxe8+,Bf8(forced) 38. Bh6 and I dont think black can stop the mate.
Jun-02-05  YouRang: <crafty's> follow-up analysis is interesting:

After white's queen takes the black queen on c8, crafty says black's next move should be 37... Bf8, leaving the knight hanging at e8! If black had instead tried to protect his knight with 37... Kf8, then white replies with 38. Bb4+, which leads to mate in 2.

And then, instead of simply taking the hanging black knight, crafty recommends 38. a5!

The knight can't run away because of the threat of Bh6 followed by Qxf8#.

Jun-02-05  fgh: Still solved under 5 seconds, this time in 3 seconds. Maybe I'am having a good week.
Jun-02-05  maoam: Do you time yourself?
Jun-02-05  YouRang: <whitepawn> More on passed pawns: "Connected passed pawns" are passed pawns on two (or more) adjacent files, which means that one can protect the other. They are VERY dangerous in an endgame.
Jun-02-05  fgh: <maoam>: Yes, I do measure the time I spend thinking about the position.
Premium Chessgames Member
  patzer2: I enjoy combinations with multiple tactical themes. In this puzzle solution, 35. Rc8! is a deflection, which sets up a winning pin and Knight Fork combined after 35...Qxc8 36. Ne7+, and wins the Queen with decisive advantage after 36...Nxe7 37. Qxc8 .
Feb-01-11  Eduardo Bermudez: One of the most beautiful Ruy López that I have seen !!
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