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Igor Berezovsky vs V Rusel
Odessa (1984), Odessa URS
English Opening: Anglo-Indian Defense. King's Indian Formation (A15)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
May-22-13  cyclon: To me it occurs that White wins the exchange and pawn by 11. Qf7 Rxf7 ( 11. -Rg8 12. Qxf6 [White captures this pawn because the threat was 12. -fxg5. Q on f6 pins the Bg7 for the fleeting moment] and now either 12. -exf6 13. Nf7X, or 12. -Bxf6 which opens the h6-f8 diagonal for Bh6 allowing now 13. Nf7X )

12. Nxf7+ Kg8 13. Nxd8 Bxh6 14. Nxb7 and White's got theoretically winning advantage. So, by 11. Qf7 it's cufflinks for White and curfew for the Black.

May-22-13  SamAtoms1980: I castled.

No, really, 11.Qf7 stands out among several possibilities because if 11....Rxf7 12.Nxf7+, and if 11....Bxh6 12.Qxh7#. I didn't see 11....Rg8, and 12.Qxf6 is just a wicked move.

May-22-13  King Sacrificer: <corbinamman: What's wrong with 11. Qg8+ with smothered mate on next move? I didn't choose 11. Qf7 but I'm hoping to still give myself the point...>

That's the blunder i made too.

May-22-13  shivasuri4: <devere>, it's not as bad as you think it is. After 8...0-0 9.Ng5 f6 10.Qc4+ <e6> 11.Nxe6 Bxe6 12.Qxe6+ Kh8, Black is only a pawn down and has some fighting chances.
May-22-13  mistreaver: Tuesday.White to play. Medium/Easy.
11 Qf7 certainly looks nice
A) 11... Bxh6
12 Qh7 mate
B) 11... fxg5
12 Q(B)xg7 mate
C) 11...Rxf7
12 Nxf7+ Kg8
13 Nxd8 Bxh6
14 Nxb7
and white is exchange up.
Time to check.
----------
Whoops, i missed the cunning Rg8 and it's refutation. Too bad :(
May-22-13  Abdel Irada: <<•> Of infiltration and impunity <•>>

One of two things has happened in this position: Either White has overcommitted his pieces on the kingside and will have to exchange/retreat them or lose them, or Black has allowed too many enemy pieces to penetrate his kingside.

Which of these eventualities is true we can test with an infiltrating move:

<<•> 11. Qf7! ... >

This threatens 12. Qxg7#, but White has several pieces en prise. What if Black takes one?

(a) 11. ...Rxf7 12. Nxf7†, Kg8 13. Nxd8, Bxh6 14. e3 . After White extricates the knight via e6 or b7, he will consolidate with an exchange to the good. This is a clear if not a winning advantage in the endgame.

(b) 11. ...Bxh6?? 12. Qxh7#.

(c) 11. ...fxg5?? 12. Qxg7#.

This leaves Black one desperate defense.

<<•> 11. ...Rg8

12. Qxf6! ... >

Now White threatens in deadly earnest the smothered mate that a move ago was mere mirage.

Again Black can't take anything:

(d) 12. ...e/Bxf6?? 13. Nf7#.

And of course the bishop is pinned and can't take on h6.

This means Black must find a means to defend f7, and of these I see four.

< (1,2) 12. ...Qe8/f8?
13. Nf7† >

Black will have to give up the queen to forestall mate.

< (3) 12. ...Be6
13. Bxg7†, Rxg7
14. Qxg7†, Kxg7
15. Nxe6† >

White emerges a rook and a bishop to the good.

< (4) 12. ...Be8
13. Bxg7†, Rxg7
14. Qxg7†, Kxg7
15. Ne6† >

And here White has an extra rook.

All things considered, Black's best chances seem to lie in note (a), where he is "only" the exchange down. But if that is the most he can do to punish White's infiltration, then it appears we have our answer: It is not that White has overcommitted, but that Black has underdefended.

May-22-13
Premium Chessgames Member
  whiteshark: <King's Indian Formation> Where ???
May-22-13  Abdel Irada: <whiteshark: <King's Indian Formation> Where ???>

I think this was meant to refer to Black's position, although to me it looks more like a Grünfeld gone catastrophically awry.

May-22-13  Ratt Boy: Standard opening principles:

1. Don't develop your Queen before the minor pieces.

2. Don't move a piece more than once before all pieces are developed.

3. Don't begin attacking until your King is safely castled.

White violated *all three* of these principles, and paid dearly for his flouting of the basic rules…wait, what??

May-22-13  Abdel Irada: So far, that's three days, three queen sacs.

Do we have a theme for this week's puzzles?

May-22-13
Premium Chessgames Member
  keypusher: I immediately saw 11.Qg8+ Rxg8 12.Nf7# and wondered if it was Monday. Then I realized Black didn't have to take the queen with the rook...
May-22-13  Marmot PFL: A fairly common trap in the English. 8...0-0 definitely loses and I think 7...Bg7 is also suspect.
May-22-13  hedgeh0g: 7.Qd4! is more accurate.
May-22-13  Patriot: 11.Qf7 looks best:

11...Bxh6 12.Qxh7#

11...fxg5 12.Qxg7#

Those are obvious.

11...Rxf7 12.Nxf7+ Kg8 13.Nxd8 Bxh6 14.Nxb7

11...Rxf7 12.Nxf7+ Kg8 13.Nxd8 b6 (trap) 14.Bxg7 Kxg7 15.O-O-O and white is up the exchange.

The candidate I think is most interesting is 11...Rg8:

12.Qxf6 Bxf6/exf6 13.Nf7#

12.Qxf6 Qf8 13.Bxg7+ Qxg7 14.Nf7#

12.Qxf6 Qe8 13.Nf7+

12.Be8 Bxg7+ 13.Rxg7 Qxg7+ 14.Kxg7 Ne6+

This seems like a lot for a Wednesday, which makes me wonder if I missed something easy.

May-22-13  Patriot: Oops--on my last line I meant 12.Qxf6 Be8 etc.
May-22-13
Premium Chessgames Member
  kevin86: Wow! move 11:white subjects his queen to attack-but a fork will regain her+ a rook.

on #12,white captures a piece,again sacrificing the queen-but this time,the penalty is mate....the extra piece will win!

May-22-13
Premium Chessgames Member
  chrisowen: Aiming fervious coin a term in a tour ng5 I qu etc,

on strict behaviour in aka 11.Qf7 look hope see i,

light up the corridor shaft in 7f it now in rook hook dash up AI 11...Rxf7 12.nxf7+ in king ghosting ha longer finger inceed the point having bishop,

came queen to the rescue hands off in g8 a fly 13.nxd8 Bxh6 or dervish in g7 and i flipflop,

exchange up ride a lion g5 back in the mix,

vociferous again cruise ala 11...rg8 12.Qxf6 black is loose his queen since fluffed e8 or be6 see on g7 query in reel f7?

May-22-13  Abdel Irada: <White violated *all three* of these principles, and paid dearly for his flouting of the basic rules…wait, what??>

In days to come, when he has shuffled into the afterlife, he will face the eternal vengeance of an outraged Caissa. He'll surely be sorry then.

May-22-13  LIFE Master AJ: 11.Qf7 looks like the best move for White.
May-22-13
Premium Chessgames Member
  ClassZPlaya: I gave up today having found 11. Qf7 but not being able to calculate a win for White after 11. ... Rg8. Missed the beautiful 12. Qxf6!!
May-22-13  HowDoesTheHorsieMove: <ClassZPlaya> Exactly the same for me.
May-22-13  Abdel Irada: <HowDoesTheHorsieMove: <ClassZPlaya> Exactly the same for me.>

Since it involves a knight move, I think I may see your problem. ;-)

May-22-13  ajile: 8..0-0 appears to be the quick loser.


click for larger view

Analysis by Rybka 3 32-bit :

1. ² (0.68): 8...Bf6 9.Qg3 Bc6 10.e3 Qd5 11.Qxc7 Nd7 12.h4 Nc5 13.Be2 Ne6

2. ± (0.76): 8...Bxh6 9.Qxh6

Black is still worse in line #1 but not immediately losing.

But after 8..0-0 White gets his tactics with the Black king attacked.

9.Ng5!


click for larger view

Analysis by Rybka 3 32-bit :

1. (1.46): 9.Ng5 f6 10.Qc4+ e6 11.Nxe6 Bxe6 12.Qxe6+ Rf7 13.Bf4


click for larger view

Na6 14.Be3 Qd7 15.Qxd7 Rxd7 16.g3 Bf8 17.Bh3 Rdd8 18.0-0 c6 19.Rad1 Bc5

May-22-13  ajile: 14.Rd1 is even better in the above line.
Aug-17-14  rodantero: Another game which continued for few moves...

Kaminski,Roman (2315) - Csoma,Robert (1970) [A16]
ICCF Jubilee Email P045, 2001

1.c4 Nf6 2.Nc3 d5 3.cxd5 Nxd5 4.Nf3 g6 5.Qa4+ Bd7 6.Qh4 Nxc3 7.dxc3 Bg7 8.Bh6 0-0 9.Ng5 f6 10.Qc4+ Kh8 11.Qf7 Rg8 12.Qxf6 Be8 13.Bxg7+ Rxg7 14.Qf8+ Rg8 15.Qh6 Rg7 16.Ne6 1-0

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