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Kevin Spraggett vs Zhansaya Abdumalik
Tradewise Gibraltar (2014), Catalan Bay GIB, rd 2, Jan-29
English Opening: King's English. Four Knights Variation Fianchetto Lines (A29)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
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Mar-14-16  stacase: <Cheapo>

What year was that?

Mar-14-16  Cheapo by the Dozen: <stacase>,

1973 or so. I was born 1/1/60. I scaled back on playing tournaments in academic years 1972-3 and 1973-4, and stopped completely after that.

So this was long after Fischer was that young, a while after Larry Christiansen was that young, and well before various waves of immigrants -- Polgars et al. -- and so on.

Mar-14-16  dfcx: Of course white wins by
44.Bg7+
As <Phony Benoni> said, Kxg7 leads to mate.

I hate Mondays without mates, so played further,

After
44...Ke7 45.f8=Q+

A. 45...Kd7 46.Qf5+ Kc7 (the other moves loses faster) 47.Be5+ Kb6 48.Rb1+ and mates in 3.


click for larger view

B. 45...Ke6 46.Bh3#

Mar-14-16
Premium Chessgames Member
  lost in space: I love Mondays, with or without mate or queen sacs.

44. Bg7+ and whatever black does there is a big material plus afterwards and it seems that mater is near...for example

44. Bg7+ Kxg7 45. f8Q+ ... or
44. Bg7+ Ke7 45. f8Q+...

Mar-14-16  psionl0: What? No Q-sac? It CAN'T be Monday!
Mar-14-16  stst: B-sac for this Monday

Completely visual - errors may creep in....

44.Bg7+ KxB (forced)
45.f8=Q Kg6
46.Qf6+ Kh5
47.Bf3#

Mar-14-16
Premium Chessgames Member
  agb2002: White has a rook and a pawn for the queen.

Black threatens Bxf7, Bd7, Bd4, etc.

The black king stops 44.f8=Q. Hence, 44.Bg7+:

A) 44... Kxg7 45.f8=Q+ Kg6 46.Qf6+ Kh5 47.Bf3#.

B) 44... Ke7 45.f8=Q+ + - [R]. A curious mate: 45... Ke6 46.Bh3#.

Mar-14-16  The Kings Domain: Didn't get this (heh). One of those simply deceptive typa puzzles. Good one.
Mar-14-16  The Kings Domain: Cute and charming game. While Spraggett is no Kasparov, he played a pretty impressive game and little Zhansaya certainly learned a few important lessons from it.
Mar-14-16  saturn2: Bg7 and the king has to give up the blocking square for the queening pawn.
Mar-14-16
Premium Chessgames Member
  whiteshark: Well, it's Monday and I've been here before... ;)
Mar-14-16
Premium Chessgames Member
  morfishine: <44.Bg7+> Nice finish
Mar-14-16  zb2cr: No Queen sacrifice this Monday. 44. Bg7+ chases Black's King off of f8, allowing White to Queen.

If 44. ... Ke7; 45. f8=Q+, White is up by a full Rook and should win easily.

If 44. ... Kxg7; 45. f8=Q+, Kg6 White is only up by the exchange, but will mate after a short King hunt, as <Phony Benoni> illustrates.

Mar-14-16
Premium Chessgames Member
  patzer2: For today's Monday puzzle (44. ?), we find a great investment opportunity.

We give up a Bishop worth three points with 44. Bg7+, and after 44...Kxg7 45. f8(Q)+ we triple our investment with the promotion of a pawn to a Queen worth nine points.

Black's decisive mistake appears to be 35...Rd2?, which allows 36. Qxd2! (+1.72 @ 24 depth, Deep Fritz 15).

Instead, the computers indicate 35...exf4 = (0.25 @ 23 depth, Deep Fritz 13) holds it about level.

Mar-14-16
Premium Chessgames Member
  perfidious: <patzer2....We give up a Bishop worth three points with 44. Bg7+, and after 44...Kxg7 45. f8(Q)+ we triple our investment with the promotion of a pawn to a Queen worth nine points.>

Have always welcomed a 300 per cent ROI; in my line, I would settle for grinding out a whale of a lot lower percentage than that over time.

Mar-14-16
Premium Chessgames Member
  kevin86: I saw this one, but I thought I missed it! The bishop sac vacates the queen square so that the pawn can promote ; white will be a rook ahead (no mate or queen sac this Monday)
Mar-14-16  Chess Dad: Good Monday puzzle.

The principle of the deflection sacrifice is definitely something that I need to cover with my son. This is a great puzzle to show that.

Mar-14-16  YetAnotherAmateur: I completely agree with <Phony Benoni> when it comes to finding mate after the initial combination. There are definitely wins after 44. Bg7+ Ke7 45. f8=Q+

For example, this blunder:
45. ... Ke6? 46. Bh3#

Or this sequence:
45. ... Kd7 46. Bh3+ Kd8 47. Bf6+ Kc7 48. Be5+ wins the queen.

Mar-14-16
Premium Chessgames Member
  patzer2: <perfidious> Going back one move earlier to 43. f7! (diagram below),


click for larger view

one could argue White earns only a 12.5% ROI (i.e. 9-8/8 = 1/8 = 12.5%) after giving up a Rook and a Bishop (worth 8 points) to promote a Queen (worth 9 points) with 43...Qxb8 44. Bg7+ Kxg7 45. f8(Q)+.

However since it's mate-in-two after 45...Kg6 46. Qf6+ Kh5 47. Bf3+#, it's clear White's gain is far more than an extra point after 43. f7! .

Mar-14-16
Premium Chessgames Member
  gawain: Nice puzzle, Mondayish in two ways: there were very few candidate moves, and we did not have to look very deep to see that one of these moves is a definite winner.
Mar-14-16  dark.horse: Monday, and there's no Q to sac?!? Well, we'll make one!
Mar-14-16
Premium Chessgames Member
  moronovich: <hush am wrack cars wash yikes corner f7 fanciful again learn am bless as tod free gave then as hail disc plans mind vote again yikes lab refoot bells las hip coves and caves case ermine coat invest mid dip dank i votes hash an l0 vehicle>

Thanks <Chris>,but I still dont know who the driver was ?

Mar-14-16
Premium Chessgames Member
  CHESSTTCAMPS: I like a Monday puzzle that breaks the usual pattern and adds some complexity. The blunder 44.fxe8+?? Kxe8 45.Re1 Qb3 costs white at least a half point. Instead, white can force mate with 44.Bg7+! Ke7 (Kxg7 45.f8=Q+ Kg6 46.Qf6+ Kh5 47.Bf3+) 45.f8=Q+ and now:

A. 45... Ke6 46.Bh3#

B. 45... Kd8 46.Rd1+ Bd4 47.Bxd4 cxd4 (Qb3 48.Bf6+ Kc7/c8 49.Qxc5+ Kb8 50.Be5#) 48.Rxd4+ Kc7 49.Qd6+ Kc8 50.Qd8#

C. 45... Kd7 46.Bh3+ Kc6 47.Qf6+ Kb6/b7 48.Rb1+ with mate shortly.

Mar-14-16
Premium Chessgames Member
  Bubo bubo: 44.Bg7+ ensures promotion of the pawn. Black cannot afford to capture because of 44...Kxg7 45.f8Q+ Kg6 46.Qf6+ Kh5 47.Bf3#. But 44.Ke7 45.f8Q+ does not look much better, as Black is down a rook and will soon lose at least more material.
Mar-14-16  paavoh: Bg7+ leading to pawn promotion and a simple win after Kxg7 and a slightly more complex after Ke7. Probably Black regretted not taking the draw by three-fold repetition at move 26.
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