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Alina Kashlinskaya vs Olga Girya
Russian Championship Superfinal (Women) (2014), Kazan RUS, rd 6, Dec-04
Nimzo-Indian Defense: Normal Variation. Bernstein Defense Except Gligoric System (E53)  ·  0-1



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sac: 37...Rxg2+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
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Premium Chessgames Member
  agb2002: Black has a rook for a bishop.

White threatens Rxh5 and Rg5-Bxc7.

The white king is very poorly defended. This suggests 37... Rxg2+ and 37... Qxf3.

In the case of 37... Rxg2+ 38.Kxg2 (38.Kh3 Qh1 39.Bh2 Qxh2#) 38... Rc2+:

A) 39.Kg3 Qg1+ 40.Kh3 Qg2#.

B) 39.Kh3 Qf1+ (or 39... Qxf3+ or 39... Qh1+) and 40... Qg2#.

C) 39.Bd2 Qxd2+ 40.Kg3 (40.Kh3 Qg(h)2#; 40.Kg(h)1 Qg2#) 40... Qh2#.


In the case of 37... Qxf3:

A) 38.Rg5 Qxf4+ 39.Kh3 (39.Kg(h)1 Rc1+ 40.Re1 Rxe1#) 39... R7c3+ 40.g3 (40.Rg3 Qxg3#) 40... Qf1#.

B) 38.Qb8+ Kh7 (38... Rc8 39.Qxc8+ Rxc8 40.gxf3 + - [B vs P]) 39.Rxh5+ Qxh5 (39... Kg6 40.Rg5+ Kh7 (40... Kf6 41.Qd8+ Re7 42.Be5#; 40... Kh6 41.Qh8#) 41.Rh5+ repeats moves) 40.Bxc7 Qxh4+ 41.Kg1 Rc1#.

C) 38.Bd2 Rxd2 39.Qxc7 Qxg2#.


I think I'd play 37... Rxg2+ because it looks simpler and quicker.

Premium Chessgames Member
  Once: It's a little trickier than it looks. Not much, but just a little.

The basic idea is easy enough. We have a rook reloader on c2-g2, followed by a queen check on g1 or h1 and then a queen mate on h2 or g2. All black has are two "useless" interpolations with Re2 and Bd2.

But not so fast. One of those useless interpolations might give black a flight square. After 39. Bd2 Rxd2+ 40. Kg3 we get to here:

click for larger view

Now black has f4 for a precarious flight square. It looks mightily risky to park a king on f4 with rooks and queens still on the board but black no longer has a quick mate from here.

In fact, Fritzie is saying that it's mate in 21 for black from this position. A win is a win even if it's slow, but that's eating into precious pub time.

Rewind. Let's look for a better way to answer 39.Bd2. <Penguincw> called it first. 39...Qxd2+ is the move. Now white doesn't have his escape route via g3 and f4 because 40.Kg3 is met with 40...Qh2#

click for larger view

... and the black queen gives checkmate with an xray control of f4. 40.Re2 Qxe2+ doesn't change the outcome.

So I'd call this one a Monday for the basic idea of the rook reloader, but a Wednesday for the precision needed to find Qxd2+ and Qh2#.

Neat little puzzle.

Jan-06-16  cocker: The finish started a move earlier, with 36 ... Qd1+.
Jan-06-16  Sularus: RxP+ should start it
Jan-06-16  stacase:  

Way too easy for a Wednesday.

Jan-06-16  mel gibson: It took me 10 seconds. Easy one.
Jan-06-16  morfishine: <37...Rxg2+> followed by the other rook 38...Rc2+ and the White King is trapped and soon mated

I figured this out after spending a couple of minutes thinking it was White's turn


Jan-06-16  dfcx: Is today Monday? Forced mate in 4 with

38. Kxg2 Rc2+

A.39.Kh3 Qf1= 40.Kg3 Qg2#

B.39.Kg3 Qg1+ 40.Kh3 Qg2#

Jan-06-16  dfcx: White can delay the mate by one move with

39.Bd2 Qxd2+ 40.Re2 Qxe2+ 41.Kh3/g3 Qh2#

or after 41.Kf1/g1/h1 Qd1#

Jan-06-16  wooden nickel: The Italian Befana must have been generously involved selecting this extremely easy puzzle today on Epiphany... the move 37.Qxf3 is so overwhelming that I didn't look for a better one.
Jan-06-16  patzer2: From the position set up, I thought it was White to move on today's Wednesday (37...?) puzzle. So when I couldn't find a move that didn't lose for White, I was sure I was missing something obvious.

The obvious of course is it's Black to move, and White has no defense against 37...Rxg2+ 38. Kxg2 Rc2+ with mate in two or three to follow.

White's decisive mistake was 34. Bf4?, allowing 34...Rc2! - + (-2.55 @ 22 depth, Deep Fritz 15). Instead, 34. Kh1 = to keeps White in the fight.

Earlier, instead of the risky pawn grab 27. Qxa7?! allowing 27...Nc4! , the computers indicate White can improve with 27. Bf2 = or 27. Red1 =.

Instead of 28...Ra8!?, the computer choice 28...h6! gives Black's King a flight square and wins a pawn after 28...h6! 29. Qa4 Rxc7 (-1.13 @ 25 depth, Deep Fritz 15).

As such, 28...h6! is objectively the most sure way to punish the pawn grab 27. Qxa7?!

Jan-06-16  Sihlous: 35...R8xc7 was much more impressive...Nice diversion tactic.
Jan-06-16  YetAnotherAmateur: <Once> has explained why this is a Wednesday puzzle. The first couple of moves is relatively easy (37. ... Rxg2 38. Kxg2 Rc2+), but then it gets more interesting.

I think others have covered all the variations, but just in case: A) 39. Kh3 Qh1+ 40. Kg3 Qh2#

B) 39. Kg3 Qg1+ 40. Kh3 Qg2#

C) 39. Bd2 Qxd2+ 40. Kf/g/h1 Qd1#

D) 39. Bd2 Qxd2+ 40. Kg/h3 Qh2#

In all variations, white can play Re2 either on move 39 or 40, but that won't do anything except delay things a move.

It's important to note that black must check throughout. Otherwise, white can counter: e.g. 39. Kh3 Qg1?? 40. Qd8+ Kh7 41. Rxh5+ Kg6 42. Rg5+ 1-0. Or even 39. Kg3 Qh1?? 40. Qd8+ Kh7 41. Rxh5+ Kg6 42. Qg5#

Jan-06-16  YetAnotherAmateur: Oops, obviously made an error in variation C, and this would be much better: E) 39. Bd2 Qxd2+ 40. Kf1 Qf2#

My originally listed move, 40. ... Qd1+ allows 41. Re1 Qxf3+ 42. Kg1 Qg2#, which is still winning obviously, but longer.

Jan-06-16  pericles of athens: Holy cow, this is a Wednesday puzzle? Either I'm not terrible anymore or this was faaaaar too easy.

I'd actually say this was too easy even for a Monday.

Jan-06-16  Chess Dad: I saw the first two moves, as played, and then the resignation, and I thought "That was too easy. What, did we have another Monday?"

I didn't see the 39. Bd2 response, and I'm not certain I would have picked Qxd2 instead of Rxd2 at that moment.

Premium Chessgames Member
  kevin86: Easy...but evidently not as easy as it looks. White can sacrifice a bishop and effect an escape if black is not careful.
Jan-06-16  Lighthorse: I also thought this was way too easy for a Wednesday and didn't see the Bd2 response. Thanks, <Once>!
Jan-06-16  Cheapo by the Dozen: Black has a material advantage; still, a quick mate would be nice. The main try is

37 ... Rxg2+
38 Kxg2 Rc2+
39 Kh3 Qh1+

and mate next.

White's alternative moves are mainly useless, winding up in either the Rg2/Qh1 mating pattern or one with a defended queen at g2 or h2. However, we should check what happens if White unblocks f4:

37 ... Rxg2+
38 Kxg2 Rc2+
39 Bd2 Qxd2+

and ... Qh2# quickly follows.

Jan-06-16  thegoodanarchist: Easier than yesterday, if you ask me.
Jan-06-16  StevieB: This was more like a Monday challenge. Super easy.
Jan-06-16  JimNorCal: <morfishine> "I figured this out after spending a couple of minutes thinking it was White's turn"

Me too, he said abashedly.

Jan-06-16  morfishine: <Patriot> Good to see you old friend

<JimNorCal> Sometimes this happens to me in the middle of the week for some reason


Jan-06-16  CHESSTTCAMPS: Black is an exchange up, with majors bearing down on a lightly defended white king. Not surprisingly, black can force mate by knocking out the primary sheltering pawn with 37... Rxg2+ 38.Kxg2 (Kh3 Qh1+) Rf2+ and now:

A.39.Kh3 Qh1+ 40.Bh2 (or Kg3) Qh2#
B.39.Kg3 Qg1+ 40.Kh3 Qg2/h2#
C.39.Bd2 Qxd2+ 40.Kg3/h3 (Kf1/g1/h1 allows mate next) Qh2#

Jan-06-16  Patriot: <morfishine> Good to see you too!
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