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Bassem Amin vs Denes Boros
World Junior Championship (2008), Gaziantep, rd 9, Aug-11
Formation: King's Indian Attack (A07)  ·  0-1


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Kibitzer's Corner
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May-27-11  Kangaroo: 43. Qxh6+ Nxh6
44. Rxh6+ Kxh6
45. Rh3#
May-27-11  rsnelgrove: But this makes no sense... white to play?
and to lose?
Premium Chessgames Member
  rhickma4: Looks like 43. Qg5 will do the trick. If black protects g6 with either the Q or N, the sacrifice on h6 will work.
Premium Chessgames Member
  Phony Benoni:

click for larger view


Lots of tempting stuff here. 43.Qxh6+ doesn't work: 43...Nxh6 44.Rxh6+ Qxh6.

43.Rxg6 Kxg6 44.Bh5+/Qh5+ Kh7, and it doesn't look like White is getting anywhere.

I'm looking at <43.Qg5>. Now, how does Black protect g6? if 43...Qxf6 44.Rxh6+, winning the queen after either 44...Nxh6 45.Qxf6, or 44...Kg7 45.Rxg6+.

That leaves 43...Qe8 44.Bc6, or 43...Qf7 44.Bd5, winning the exchange in either case. Not much, admittedly, but someone else will have to find better.


Hmmm, this may be a self spoiler! Again, in the <> puzzles the goal is to find the best move, not always the game continuation. That way, you can feel smarter than a master!

Premium Chessgames Member
  lost in space: I think I have no full solution, only an idea:

43. Qg5 with the threat to take on h6 with the rook or to take on g6 with the queen and mate. I see only this option for Black, losing the queen:

e.g. 43. Qxf6 44. Rxh6 Nxh6 45. Qxf6 and sooner or later also the Nh6 will fall after Rh3 and Qg5

click for larger view

Premium Chessgames Member
  andrewjsacks: Phony, do not forget the weakness on f5 after your proposed start with Rxg6....
Premium Chessgames Member
  lost in space: 43...Qe8 doe not work either:

44. Rxh6+ Nxh6 45. Qxh6 Kg8 46. Bd5

a: 46....Rxd547. Qg7#
b: 46...Qe6 is lost anyway, but in addition mate in 2

Premium Chessgames Member
  Dr. Funkenstein: I was thinking 43. Rxg6 as I thought initially the rook is immune due to 43. ...Kxg6 44. Qh5+ Kh7?? 45. Qxf5# but of course 44. ...Kxf6 and black wins so then I looked at Qg5, but couldn't see much after Rf7/Qf7

maybe Bd5 winning the exchange as Phony Benoni said is the best and this is the solution

Premium Chessgames Member
  andrewjsacks: Right. I do not know. I am trying to make that line work, but am tired. I do not think the Dr. should be so sure Black wins there....
Premium Chessgames Member
  Phony Benoni: <andrewjsacks> That's true: 43.Rxg6 Kxg6 44.Qh5+ Kh7 45.Qxf5# works fine. But what after 44...Kxf6? (Should have mentioned that.)

<Dr. Funkenstein>: <rhickma4> has the right idea before I even posted. After 43.Qg5 Qf7/Qe8 44.Rxh6+ now works.

May-27-11  Don Quijote: Qg5 is devastating
Premium Chessgames Member
  andrewjsacks: Right. Makes sense. Interesting subtlety.
May-27-11  TheBish: B Amin vs D Boros, 2008

White to play (43.?) "Difficult"

This is a pretty good one. It seems like I may have seen it before, but maybe just one similar. Anyway, I didn't remember the solution or even find it right away. I wanted to sac on g6, e.g. 43. Rxg6 Kxg6 44. Bh5+ Kh7, but failed to see a follow-up -- maybe because there is none! But g6 is the weak point, and that's what White needs to exploit. Not by a sac, but by an attack.

43. Qg5!

Taking advantage of the pin to threaten mate.


Or 43...Qxf6 44. Rxh6+ Kg7 (44...Nxh6 45. Qxf6) 45. Rxg6+ wins the queen.

44. Rxh6+! Nxh6 45. Qxh6+! Kg8

Or 45...Kxh6 46. Rh3#.

46. Rxg6+ Qxg6 47. Bd5+! Rxd5 48. Qxg6+ Kf8 49. Qg7+ Ke8 50. cxd5 and wins easily.

Premium Chessgames Member
  rilkefan: I looked at a bunch of moves - maybe too many. Bc6, Bd5, Rxg6, Qg5. I don't see anything after the bishop moves. After 43.Rxg6 Kxg6 I considered 44.Qh5+ Kxf6 (forced) but 45.Rg3 and the wacky Be4 don't seem to hack it; 44.Bh5+ Kh7 (forced) 45.Rg3 and after ...Nxf6 46.Bg6+ Kg8 47.Bxf5 Kf7 black ends up a piece unless there's some open field mate I can't see; 44.Rg3+ and I don't see anything good. So 43.Qg5. If ...Qe8 threatening ...Qe3+ 44.Rxh6+ Nxh6 45.Qxh6+ Kxh6 (else white gets black's queen for the g-rook and is still attacking) 46.Rh3#. So ...Qxf6 or Nxf6. If ...Qxf6 just 44.Rxh6+ picks up the queen or Rxg6 will be crushing. So ...Nxf6. Oh, that's death on g6.

Let's see where I went wrong.

May-27-11  TheBish: Oops! In my last line, should say "50. Qe7#." Doing this in my head, and somehow overlooked the mate!
May-27-11  sevenseaman: For a person like me who always thinks the side having the move always wins or draws, this had to be the Waterloo.

Apparently <CG>.com runs deeper. My only query is "Difficult" for whom? Its never 'difficult' to lose.

Premium Chessgames Member

click for larger view

In the above puzzle position black's king has no escape square and 43 Qg5 threatens mate in one at g6 with no obvious conterthreats, so why not try it?

Black can protect g6 four ways and they all lose to Rxh6+.

I like the (unforced) continuation 43 Qg5 Qf7 44 Rxh6+ Nxh6 Qxh6+ Kxh6 46 Rh3#.

click for larger view

May-27-11  Zan: <sevenseaman: For a person like me who always thinks the side having the move always wins or draws, this had to be the Waterloo.

Apparently <CG>.com runs deeper. My only query is "Difficult" for whom? Its never 'difficult' to lose.>

As PB pointed out, for the puzzles here, the solution isn't always to find the same line as the game continuation (especially on weekend puzzles), but to find the best move in the position. Sometimes they're the same, and sometimes their not.

May-27-11  tacticalmonster: 1) Black king is in grave danger and it is " stalemaled " at the moment

2) Black threatens to capture the f6 pawn which did a great job guarding g7 escape route for Black king.

3) The h8 rook is shut out of the game

4) h6 and g6 pawn are both very weak

candidate: 43 Qg5

a) 43...Qxf6 44 Rxh6+! Kg8 45 Rxg6+ winning the Black queen

b) 43...Qe8 44 Rxh6+ Nxh6 45 Qxh6+! Kg8 46 Rxg6+ Kf7 47 Qg7+ Ke6 48 f7+

Time spent: 5 min

May-27-11  sevenseaman: For the record, I tried 2 lines

A) 43. Rxg6 Kxg6 44. Bh5+ Kh7 45. Bg6+ Kxg6 46. Rg3 Kh7 47. Qh5 seem to fail to 47...Qxf6.

B) 43. Qg5 Qf7 44 Rxh6+ Nxh6 45. Qxh6+ Kg8 46. Rxg6+ Qxg6 47. Qxg6 Kf8 48. Bd5 with chances for both; did not look further. White's P is dangerous, Black has chances on 'h' file.

<Zan> I do not believe degree of difficulty relates to finding the best move in order to lose. A patient takes a medicine in order to get well. If the aim is to die there isn't much of a problem.

Premium Chessgames Member
  M.Hassan: "Difficult" White to play 43.?
White has a Bishop for a Knight. Considered equal.

The key move would be 43.Qg5 threatening mate on g6 if black does not prevent it:

43.Qg5 Qxf6
44.Rxh6+ Nxh6
45.Qxf6 Rg8
46.Rh3 Rc8
47.Qg5 Kg7
and I think it's time for Black to resign. Time to check

How enormously different!.There was no way I could have seen the playing of the text.

May-27-11  scormus: W has a lot of pressure but the BK looks safe in his fortress, or is he? Big weakness is g5, the way in

43 Qg5 threatens # so BQ must cover. So either

a) ... Qf7 44 Bd5 Qxf6 45 Rxh6+ Kg7 ( ... Nxh6 46 Qxf6 Rg7 47 Rh3) 46 Rxg6+ 1-0

or (one move quicker)

b) .... Qxf6 44 Rxh6+ Kg7 45 Rxg6+ (... Nxh6 46 Qxf6 etc) 1-0

I hope I have missed something ...

May-27-11  David2009: B Amin vs D Boros, 2008 White 43?

Let's try 43 Bc6 expecting 43...Rf7 44 Be8 Qxe8 45 Qxh6+ Nxh6 46 Rxh6+ Kg8 (if 46...Kxh6? 47 Rh3#) 47 Rgxg6+ Rg7 48 Rxh8+ Kxh8 49 fxg7+ Qxg7 50 Rxg7 with a won K&P ending. 47...Qg7 48 Rxh8+ leads to similar variations. Time to check:
Missed it! Echoes of yesterday Y Visser vs Bosboom-Lanchava, 2006 when I snatched defeat from victory. Congratulations to <Phony Benoni>, <lost in space> and <UTCAA> for solving this one.

May-27-11  LIFE Master AJ: Better was: 43.Qg5!! Qxf6▢; (<43...Rf7?? 44.Qxg6#) 44.Rxh6+! Nxh6 45.Qxf6 .

Used around 10 minutes on time ... maybe more. (time forfeit)

Premium Chessgames Member
  M.Hassan: <sevenseaman: If the aim is to die,there isn't much of a problem> Here Here
Very well said. This is a misleading puzzle designed to mislead kibitzers by <>
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