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Vasily Smyslov vs Wolfgang Uhlmann
Capablanca Memorial (1973), Cienfuegos CUB
French Defense: Tarrasch Variation. Open System (C07)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Dec-21-15
Premium Chessgames Member
  patzer2: Instead of a mating combination, today's Monday puzzle solution sets a pin with 40. Qc8+ and after 40...Ka7 41. Rc7+ Rxc7 42. Qxf5 White attacks and deflects the pinned Rook in order to win the Black Queen.

For an improvement, in place of 22...Rad8, the simplifying 22... g6 23. Rxd7+ Qxd7 24. Qxd7+ Nxd7 25. f4 = (0.16 @ 25 depth, Deep Fritz 14) appears to give Black good drawing chances.

Dec-21-15  Cheapo by the Dozen: Holiday week, but kind of in reverse -- felt like Tuesday on a Monday.
Dec-21-15
Premium Chessgames Member
  agb2002: White is one pawn ahead.

The square c8 is defenseless and 40.Qc8+ creates a skewer with tempo:

A) 40... Ka7 41.Rc7+ Rxc7 (41... Kb6 42.Qb7+ Ka5 43.Qa7#) 42.Qxf5 + - [Q+P vs R].

B) 40... Qb6 41.Rc6+ and mate next.

Dec-21-15  stst: If Black wants to avoid mate, then it has to give up the Q: 40.Qc8+ Ka7
41.Rc7+ Rxc7
42.QxQ(f5) and Q vs R should prevail.

Else
40.Qc8+ Ka7
41.Rc7 Kb6
42.Qb6+ Ka5
43.Qa6#

or similarly
40.Qc8+ Kb6
41.Rc6+ Ka5
42.Qa6#

White cannot allow Black take any breath to check, else will lose right on spot.

Dec-21-15  Nick46: The major difficulty was that we have been programmed to expect a sacrifice, especially on Mondays.
Dec-21-15  morfishine: White wins after <40.Qc8+> because Black only has one move to avoid mate: <40...Ka7> but then White takes advantage of the pin on the h3-c8 diagonal: 41.Rc7+ Rxc7 and finally: <42.Qxf5> Oops

*****

Dec-21-15  kubbybulin: Ok...everyone suffer me for one second and do "queens and rooks and queens and rooks..." to Geico's "boots and pants"(someday I'll grow up - but I hope not for then I will probably not play chess). Typically my bane, I despise major piece endings for this very reason. The threats lurk on every square and it's always a bolt from the blue. 99% tactics... 40. Qc8 pinning rook with check and 41. Rc7 forking king and pinned piece.
Dec-21-15  Coriolis: I would call this a "Monday 23h58" puzzle. Very nearly Tuesday.
Dec-21-15  cocker: The King chase started on move 36.
Dec-21-15
Premium Chessgames Member
  whiteshark: Playing through the game here's another puzzle for you: what's wrong with <26...Rc8> which besides pins ♘c5?


click for larger view

Dec-21-15  Willber G: <whiteshark: Playing through the game here's another puzzle for you: what's wrong with <26...Rc8> which besides pins ♘c5?>

27. Ne4

Dec-21-15
Premium Chessgames Member
  whiteshark: <Wilber G> Right! It was a 'pseudo-pin'.
Dec-21-15  zb2cr: 40. Qc8+ puts Black into an unsolvable dilemma.

40. ... Kb6; 41. Rc6+, Ka5 ( ... Ka7; 41. Ra6#); 42. Qa8+, Ra7; 43. Qxa7#.

40. ... Ka7; 41. Rc7+! and Black will lose his Queen and be down Q vs. R.

Dec-21-15  saturn2: Qc8+ a)after ...Ka7, Rc7 wins the black queen for the rock b)after Kb6 white mates the opponents king
Dec-21-15
Premium Chessgames Member
  mjmorri: I did not realize that Smyslov and Uhlmann were only Category 7 players. Must have been a lot of local masters in that tournament.
Dec-21-15  Amarande: Hmm, let's see, are we after mate or material? A little less obvious than most Mondays particularly as there's no sac.

The only moves that appear to even remotely improve White's position are Rc8 or Qc8+; if White tries the former, he learns better after 40 ... Rd1+. Therefore, 40 Qc8+ has to be played. If Kb6 then the Rook can check at c6 and the King is up against the wall for an easy mate, so Black has to try Ka7. Then c7 is no longer doubly guarded and Rc7+ can pile on the pin for much material gain (in fact it wins the Queen, for if Black tries to abandon the Rook to its fate, again he gets mated; he must play RxR to live a little longer).

Dec-21-15
Premium Chessgames Member
  gawain: I agree with <Phony Benoni>: Complicated for a Monday. I got it--but wondered if there was anything easier.
Dec-21-15  gabriel25: The easy check pins the rook to the queen, and looking for what can we get out of it, the rook check pops up. A very nice Monday
Dec-21-15  stst: <I did not realize that Smyslov and Uhlmann were only Category 7 players. Must have been a lot of local masters in that tournament.>

-- Often hawks are too hungry that they squeezed into chiken flocks to make prey.

Dec-21-15  stst: <are we after mate or material? A little less obvious than most Mondays particularly as there's no sac.>

-- Goal is to win (or at least not to lose,) it could be a quick strike, or a long grilling process, it could be having a positional advantage, or it could be a gain of matrial, or it could simply put the opponent into stymie (often great pain!) In this case, the pin belongs quite to the latter.

Dec-21-15
Premium Chessgames Member
  kevin86: Not a legit Monday puzzle. nice tactic but too brutal!
Dec-21-15  xzws: Why 19...b5? Why not 19...Bc5?
Dec-21-15
Premium Chessgames Member
  perfidious: Reading the header with its note of Category 7--an event which would not even be noticed today--gave me pause.
Dec-21-15
Premium Chessgames Member
  patzer2: For an opening improvement for Black I like 11...d4 as in S Brynell vs W Schmidt, 1988.
Dec-21-15  M.Hassan: Its' not mate but wins the Queen for a Rook:
40.Qc8+ Ka7(forced)
41.Rc7+ Rxc7
42.Qxf5
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