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Lester Machado vs Kevin Martin McDonald
24th Southern Open U-2100 (2016), Wyndham Resort, Orlando, Fl., rd 3, Jul-23
Dutch Defense: General (A80)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Jan-16-17  Mayankk: Yeah. Most of the time spent was in making the g7 sacrifice work. It's amazing how much a capture sacrifice is easier to spot than a non-capture sacrifice. Once you see the f6 manoeuvre after a minute of misguided attempts at g7, you only curse yourself for not seeing it earlier.
Jan-16-17  daveinsatiable: <Cheapo by the Dozen> what happens if Black plays 23 ... ed?

24. Qf6 anyway. Qxf6
25. gxf6, with f7 to follow and no way for black to save the rook on g8.

Jan-16-17
Premium Chessgames Member
  thegoodanarchist: I believe the mate to be delivered is an epaulet mate
Jan-16-17  morfishine: <24.Qf6+> Machado, Machado man

I wanna be, a Machado Man!

*****

Jan-16-17
Premium Chessgames Member
  Sally Simpson:


click for larger view

A perfect 'it's Monday sac your Queen' puzzle.

As ASchultz and others have hinted, the reason these shots are sometimes missed is because there is nothing on f6. Making a sacrifice on a bare square is the last thing we look at it.

Jan-16-17  leRevenant: A Tuesday, at least, in my book.
Jan-16-17
Premium Chessgames Member
  whiteshark: When you see an <Epaulette #>, ...
Jan-16-17  zb2cr: THe position of the two Black Rooks makes an "epaulette mate" possible. This is normally delivered by the Queen, but in this case the Queen is sacrificed to make it possible for the Rook to deliver it. 24. Qf6+, gxf6; 25. Rf7#.
Jan-16-17  awfulhangover: Ok, I got i right, but I don't want to tell you the silly variations I looked at before I spotted it. Puhh ... lol
Jan-16-17  Carlos0012358: A true Monday "very easy" one.
Jan-16-17  YouRang: On white's 21st move,


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I gather that white played <21.Qc3> eyeing the potential for Qf6+ thanks to the pinned Pg7 and the supporting Pg5. It seems that black saw this threat, and thus unpinned and guarded Pg7 with <21...Kf8>.


click for larger view

At this point, I guess that white was considering f3 ...exf3 Bxf3 followed by e4, and wanted to avoid a subsequent ...Qf4+, and so he moved his king out of checking range with <22.Kb1>, to which black replied <22...Re8?>


click for larger view

Evidently black was thinking to bolster the defense of Pg7 with ...Re7. However, this unwittingly set up the Epaulette mating pattern, which renewed white's interest in Qf6+. White put that threat into play with <23.d5!>, opening the queen's diagonal to f6.


click for larger view

Black didn't notice the Qf6+ threat this time, so instead of a defensive move like 23...Qe7, his <23...cxd5??> was punished with <24.Qf6+> ending the game due to 24...gxf6 25.Rf7#.

Jan-16-17  Nullifidian: 24. ♕f6+ ♙gxf6 25. ♖f7#
Jan-16-17  GoldenKnight: An epaulette mate!
Jan-16-17  GoldenKnight: From the ornaments French soldiers used to wear on their shoulders. I got this term for that kind of mate from a Larry Evans book in the '60s.
Jan-16-17  MaczynskiPratten: And, in my view, a particularly pretty example. More commonly the epaulette mate is seen as the Q on f6, which would work here were it not for the P on g7. Using the R on f7 is more material-efficient.
Jan-16-17  ColeTrane: "Epaulette"? New term for me..... At least I got the puzzle in 1 sec.
Jan-16-17  Bubo bubo: A quasi-epaulette mate: 24.Qf6+ gxf6 25.Rf7#
Jan-16-17  Abdel Irada: ∞

The old one-two: First White applies a sacrificial epaulette with 24. Qf6+ to deflect the g-pawn, and then he delivers a modified epaulette with 25. Rf7#.

Jan-16-17
Premium Chessgames Member
  drollere: 23. ... ed5 24. Qf6+ Qxf6 25. hf6 Re6 26. f7 Rxh6 27. fh8=Q Kxh8
Jan-16-17  transpose: It took me a minute trying to take the g pawn, but I finally got it. If I were black, I may have also been oblivious and played 23...cd?? which just loses. I hope if I were white I would have seen it and also played 23 d5. In fact, it might have been a better puzzle (Wednesday puzzle?) if the position were set to find 23 d5.
Jan-16-17  Abdel Irada: ∞

<transpose: It took me a minute trying to take the g pawn, but I finally got it. If I were black, I may have also been oblivious and played 23...cd?? which just loses. I hope if I were white I would have seen it and also played 23 d5. In fact, it might have been a better puzzle (Wednesday puzzle?) if the position were set to find 23 d5.>

It might, although to me that move was the obvious purpose of 21. Qc3, and moreover an extremely intuitive choice.

Jan-16-17  waustad: I confess that I probably saw it faster because it was a Monday puzzle.
Jan-16-17  notyetagm: L Machado vs K McDonald, 2016

Game Collection: LATERAL PINS: PINS ALL THE WAY ACROSS THE RANK 24 Qc3-f6+! 1-0 as Black g7-pawn interposes f7-sq from h7-rook

Jan-17-17  stst: instant 24.Qf6+ gxQ 25.Rf7#

(NOT 24.Qxg7+ when RxQ leaves White no mating trick.)

Jan-17-17
Premium Chessgames Member
  thegoodanarchist: <morfishine: <24.Qf6+> Machado, Machado man

I wanna be, a Machado Man!

*****>

It takes a Village, people!

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