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Milan Vidmar vs David Przepiorka
15th DSB Kongress (Nuremberg) (1906), Nuremberg GER, rd 12, Aug-05
Queen's Gambit Declined: Orthodox Defense. Main Line (D63)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 4 OF 5 ·  Later Kibitzing>
Mar-06-12  LoveThatJoker: Right on! I'll come back on Wednesday with the solutions to both Wednesday, March 7th and Sunday, March 4th.

LTJ

Mar-06-12  Oxnard: Calculated to mate:

36. Rxh6+ gxh6 37. Rxh6+ Kg7 38. Qh7+ Kf8 39. Rxf6+ Qf7 40. Rxf7+ Ke8 41. Rxe7+ Kd8 42. Re8+ Kxe8 43. Qd7+ Kf8 44. Qf7#

Mar-06-12
Premium Chessgames Member
  Penguincw: Oops. Miscalculation . :-\
Mar-06-12  zakkzheng: BLOWOUT FORT
Mar-06-12
Premium Chessgames Member
  Check It Out: The black king kept "escaping" to f8, it took me a minute to visualize 39.Rxf6+.
Mar-06-12  BOSTER: <Pawn and Two>.
<How Przepiorka could have selected 35...c2??, is a real mystery>.

This is the position after 30...bxc3 with white to play.


click for larger view

No doubt that black could count the variation like this 31.Nxf6 Rxf6 (forced) 32.Rxf6 gxf6 33.Rxh6+ Kg7 34.Rh7+ Kf8 35.Rxd7 and white win.

But this is position after 31.Nxf6 Rxf6 32.Rxf6.


click for larger view

In this strange position black move 32...c2 is very attractive, because to catch the queen on c1 is not easy, and open "g" file give black drawish chance.

My opinion that fact is: sometimes the player continue to see the position which was on the board, or in his head couple moves ago.

Mar-06-12  stst: Only by eyes:
36.R(g)xh6+ gxh6
37.R(h)xh6+ Kg7
38.Qh7+ Kf8
39.Rxf6+ Rf7
40.Rxf7+ Qxf7
41.Qxf7#
might got it wrong, or miss something....
Jun-23-21  ku0826: natural line followed checkmate.
Jun-23-21  Tiggler: I think 36 Rxf6 works just as well.
Jun-23-21
Premium Chessgames Member
  saffuna: <I think 36 Rxf6 works just as well.>

Except it's not check and the black c-pawn can queen with check.

Jun-23-21  Cheapo by the Dozen: There's a simple mating sequence that works. The key to finding it for me was realizing:

-- The c2 pawn means that White can't let Black have a tempo, and should play utterly forcing moves instead.

-- Thus, White needs to be able to actually mate at f7.

-- To do that, he needs to have 3 pieces pointing at f7 (counting the pawn), not just 2.

Jun-23-21  Walter Glattke: 36. Rg6 (Rh4) xh6+ gxh6 37.Rxh6+ Kg7 38.Qh7 Kf8 39.Rxf6+ R/Qf7 40.Rxf7+ R/Qxf7 41. Qxf7#/35.-Rxe6 36.Qg4 Kh7
Jun-23-21
Premium Chessgames Member
  agb2002: White has an extra pawn.

Black threatens c1=Q+ and Rxe6.

White can force mate with 36.Rg(h)xh6+ gxh6 37.Rh(g)xh6+ Kg7 38.Qh7+ Kf8 39.Rxf6+ Qf7 (39... Rf7 40.Rxf7+ Qxf7 41.Qxf7#) 40.Rxf7+ Rxf7 (40... Ke8 41.Qxg8#) 41.Qxf7#.

Jun-23-21  TheBish: White to play (36.?) "Medium/Easy"

White is up a pawn. Black is threatening to queen with check, but being a puzzle, of course, White needn't settle for 36. Qxc2 Rxe6. Most forcing move is a rook sac with check, to tear open the king's fortress. After a little analysis, one can see that it's a forced mate in 6.

36. R(any)xh6+ gxh6 37. Rxh6+ Kg7 (no need to discuss 37...Rh7) 38. Qh7+ Kf8 39. Rxf6+ Rf7 40. Rxf7+ Qxf7 41. Qxf7#.

On second glance, it's also a mate in 6 if Black plays 39...Qf7 40. Rxf7+ Ke8 41. Qxg8#.

Not too tough for a humpday puzzle!

Jun-23-21  Brenin: Black threw away a win with the incomprehensible 35 ... c2, which allows White to play simply 36 Qxc2 if he misses the rather obvious mate in 6. Instead, 35 ... Rxe6 retains the threatening c-pawn, regains a P, and threatens another P on e3. Time-trouble panic?
Jun-23-21
Premium Chessgames Member
  drollere: i had 36. Rgxh6+ gxh6, 37. Rxh6+ Kg7, 38. Qh7+ Kf8, 39. Rxf6+ Rf7, 40. Rxf7+ Qxf7, 41. Qxf7# ... but then, so did everyone else.
Jun-23-21  TheaN: <36.Rxh6+ gxh6 37.Rxh6+ Kg7 38.Qh7+ Kf8 39.Rxf6+ R/Qf7 40.Rxf7+ Q/Rxf7 41.Qxf7#>

The puzzle itself is not that interesting; how to note it more so. I'm not sure if what I've written is allowed.

First off, Rxh6+ is technically not an available move, as it's ambiguous. However, because the followup is forcefully the same, noting which rook takes on h6 has no point. By ruling however, we have to, given we can make another move on move 37 and the position is crucially different depending on which rook took on h6.

The second choice I make is to distinguish Black's capture on f7 with a /, followed by the other piece respectively on the next move; also because taking twice is forced. Here, I'm pretty sure we're supposed to denote two different variations.

Everyone understands what I've posted, but technically it probably should be 36.Rhxh6+ (Rgxh6+ gxh6 37.Rxh6+) gxh6 37.Rxh6+ Kg7 38.Qh7+ Kf8 39.Rxf6+ Rf7 (Qf7 40.Rxf7+ Rxf7 41.Qxf7#) 40.Rxf7+ Qxf7 41.Qxf7#.

Jun-23-21  Whitehat1963: 38. Qh7+ is the key move in the sequence.
Jun-23-21
Premium Chessgames Member
  chrisowen: Davey Jones keyins divey Rhxh6 garcon a fridge puffy keyins bedbugs exorbitant keyins aghast keyins o quosh davey jones keyins lapel mooted its okay keyins binary plummet crick kissy quagmire weigh o keyins jaffa its exodus davey o keyins journey divey its pallbearer hick crows keyins myth its footed it z keyins heffa its Rxe6 ebbers keyins effects fluff keyins a bluff frazzled its ok achtung ratchet c2 either feels keyins o about i gloat fluff davey keyins totups diminish foggy do its ace me a keyins flubb dangle its whip z its auld mrs its dryland keyins rome its ivory Rhxh6 fiddle!
Jun-23-21
Premium Chessgames Member
  Once: I thought this one looked familiar.
Jun-23-21
Premium Chessgames Member
  chrisowen: No spark in the chamber no?
Jun-23-21  WorstPlayerEver: Mate in 6. More a regular review than a puzzle.
Jun-23-21
Premium Chessgames Member
  Oxspawn: I think this was the first position of the day I commented on in 2012. I didn't get it then and I didn't get it again today for the same reason. On move 38 I insisted on Rh7+ and simply could not 'see' Qh7+. Full marks for consistency.
Jun-23-21
Premium Chessgames Member
  chrisowen: No span is h6 flare no?
Jun-23-21  Andrew Chapman: <I think this was the first position of the day I commented on in 2012. I didn't get it then and I didn't get it again today for the same reason. On move 38 I insisted on Rh7+ and simply could not 'see' Qh7+. Full marks for consistency.>

Oxspawn's 2012 confession is enjoyable (page 2).

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