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Joel Benjamin vs Nelson Gamboa
23rd World Open (1995), Philadelphia, PA USA, rd 4
English Opening: Anglo-Indian Defense. Flohr-Mikenas-Carls Variation (A18)  ·  1-0



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Kibitzer's Corner
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Premium Chessgames Member
  FSR: 15.Qxc6+! wins at least knight and pawn, for starters.
May-21-12  SimonWebbsTiger: I like Qxc6 and then Qxd7 with Ne5 on Kd8
May-21-12  sevenseaman: A simple 1 2 with Q sac though I kept looking for the White LSB for the Boden's which is quite common in such situations.

15. Qxc6+ bxc6 16. Rb8#


<Patriot> <15.Qxc6+ bxc6 16.Rb8# is the main idea. However, black can try 15...Kd8 since white's rook on b1 hangs. 16.Qb5 should be "good enough" since 16...Qe4+ 17.Be3 should save the day.>

Declining the Q is no good for Black.

15. Qxc6+ Kd8 16. Rxb7 Rxb7 17. Qxb7 looks to be the right procedure, whatever Black chooses. No?

May-21-12  mohannagappan: 15.Qxc6+ bxc6 16.Rb8# or 15. ...Kd8 16.Qxd7+ Kxd7 17.Ne5+ - or 15. ...Rc7 16.Qxc7#
May-21-12  SamAtoms1980: 15.Qxc6+! made gumbo out of Gamboa after 15....Kd8 16.Rxb7 or 15....bxc6 16.Rb8#.
May-21-12  zb2cr: White wins a piece with 15. Qxc6+. The simple lines are

(a) 15. ... bxc6; 16. Rb8#.
(b) 15. ... Rc7; 16. Qxc7#.

A more interesting choice comes up after 15. ... Kd8.

<Jimfromprovidence>, <sevenseaman>, and <samAtoms1980> advocate 16. Rxb7, simplifying, while <mohannagappan> spotted 16. Qxd7+, Kxd7; 17. Ne5+ which regains the Queen and leaves White with a full Rook advantage. Both lines are won easily for White. I would go with <mohannagappan>'s line; I like to get Queens off the board when I'm up material.

May-21-12  Moonwalker: I can't remember the last time I've seen a Monday puzzle without a forced mate... A queen sac is always sexy, mate or no mate :-)
May-21-12  lost in space: I love Mondays!

15. Qxc6+ Kd8
(15...bxc6 16. Rb8#; 15...Rc7 16. Qxc7#)

15...Kd8 16. Qxd7+ Kxd7 17. Ne5+ (royal fork) with decisive material advantage white

click for larger view

May-21-12  Abdel Irada: White applies the full Nelson with 15. ♕xc6+, ♔d8 (not 15. ...bxc6?; 16. ♖b8# or 15. ...♖c7?; 16. ♕xc7#); 16. ♕xd7+, ♔xd7; 17. ♘e5+ followed by 18. ♘xg6, when white enters the endgame a rook ahead.
Premium Chessgames Member
  agb2002: The material is equal.

Black threatens 15... Qxe4+, 15... Qxg2 and 15... Qxb1+ if the white queen goes to e2 or e3.

The black castle is very weak, in particular its dark squares. Therefore, 15.Qxc6+ Kd8 (15... bxc6 16.Rb8#) and now

A) 16.Qb5 Qxg2 17.Kg2 + -.


B) 16.Rxb7 Rxb7 17.Qxb7 Qxg2 18.Rg1 + -.

May-21-12  VincentL: "Very Easy".

15. Qxc6+ and black surely resigned.

15.....bxc6 allows 16. Rb8#

If 15.....Kd8 16. Rxb7 and mate follows.

May-21-12  Swedish Logician: Ver gratifying Monday position; Qxc6 + screams out to be made ..
May-21-12  sorokahdeen: Qc6+ Owie!
May-21-12  morfishine: <15. Qxc6+> wins immediately since <15...bxc6 16. Rb8 mate>

I'm with the <15...Kd8 16.Qxd7+ Kxd7 17. Ne5+> crowd: simplify

Premium Chessgames Member
  whiteshark: <15.Qxc6+> and that's it.
May-21-12  jffun1958: 15. Qxc6+

15. ... bxc6
16 Rb8#

15. ... Rb7
16. Qxb7#

May-21-12  bachbeet: Got it. Moving the K to d8 only delays the inevitable.
May-21-12  TheaN: Monday 21 May 2012


Material: even

Candidates: <[Qxc6†]>

After only fifteen moves Black is in dismay as most of White's pieces are aiming at the Black queenside. White has been challenged however by Qg6, opting to trade queens and skewering the White queen on the rook at b1. Black should have definitely considered Qxc6†, cause it is a forced sequence out of the trade and skewer if it works. And it does.

<15.Qxc6† Kd8 (bxc6 16.Rb8‡ 1-0 & Rc7 16.Qe8‡ 1-0) 16.Rxb7> I found this to be the destructive option. White remains a piece up, nearly forcing Rxb7. The queen shields e4, the rook b1 so the Black queen can't do anything. After:

<16....Rxb7 17.Qxb7 > I find no useful way for Black to avoid havoc around his king.

May-21-12  TheaN: I actually considered the answer <17....Qd3>. It's kind of annoying due to the threat of Qxc3†, but White must consider what this spite check means with the Black king nearly mated. I'm guessing White can close the book simply with:

<15.Qxc6 Kd8 16.Rxb7 Rxb7 17.Qxb7 Qd3 18.Ne5 Qxc3† 19.Bd2 Qa1† 20.Ke2 > and Black might as well allow 20....Qxh1 21.Qd7‡ cause he ain't avoiding mate anymore.

Premium Chessgames Member
  OhioChessFan: Not sure if you had to find 15..Kd8 16. Qxd7 Kxd7 17. Ne5+. I think the kibitzers should get credit for a spoiler of what is <not> a Monday level puzzle.
Premium Chessgames Member
  Once: <sarayu> I applaud your sentiments, I really do, but as Ramdaz was writing back in 2003 (and hasn't been seen since 2007) I suspect he can't hear you!
May-21-12  NewLine: Yea, unless you are a ghost whisperer. And I'm not sure about that insult anyway.

The bastard, he called me a real shah!
What a terrible thing to say. Shame on him. I am definitely not a real shah.

May-21-12  sevenseaman: Its from a game that ended in a draw, whether Black managed or White allowed. I am sure you can do better.

I'll put the difficulty close to that of a Thursday puzzle.

click for larger view

White to play & win.

May-21-12  En prise: Please excuse my ignorance. What's a shah?
May-21-12  King Death: <Dec-16-03 Benzol: Your right Ben. I can claim to be a 2500 rated player with a mouse rated at 900. LOL.>

This is probably what my trying to play after more than 20 years away from chess would be like. Even back in 2003 it would've been pretty sad.

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