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Marcin Dziuba vs Alexander Ipatov
Aeroflot Open (2009), Moscow RUS, rd 9, Feb-25
Gruenfeld Defense: Exchange. Modern Exchange Variation (D85)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Jul-17-14
Premium Chessgames Member
  posoo: "Dziubalation," LOL

POSOO SAID IT

Aug-30-14
Premium Chessgames Member
  Cheapo by the Dozen: Over the board I'd try

30 Qg3 Rxg8
31 Qg5+ Kh7
32 Qe7+ Kh6
33 Re1

My first thought on defense for Black in response (now that he has an unforced move) is to attack the d4 bishop with his queen, so as to take the fun out of White's various possibilities for discovered check, as for example in

30 Qg3 Rxg8
31 Qg5+ Kh7
32 Qe7+ Kh6
33 Re1 Qd5
34 Qg5+ Kh7
35 Re7+ Rg7
36 Rxg7+ Kh8

and Black is threatening to take the d4 bishop with check.

Aug-30-14  morfishine: I was able to find <30.Qg3> and continued

30...Rxg8 31.Qg5+ Kh7 32.Qe7+ Kh6 33.Bf6 g5

But here I could only see <34.fxg5+>

I'm fairly disappointed I couldn't see the stronger 34.Bg5+ followed by the threat against <h7>

*****

Aug-30-14
Premium Chessgames Member
  al wazir: I got it, sort of. The first few moves are easy to find. After 30. Qg3 Rg8 31. Qg5+ Kh7 32. Qe7+ Kh6 33. Bf6 g5 34. Bxg5+ Rxg5, I would have been tempted to play 35. Qxg5+ Kh7 36. Qe7+ Kh6 37. Qxd7, and tried to promote the c-♙. I never thought of 35. fxg5+.

I don't know whether my line works, but it wins in what seems to me to be the likely continuation: 37...Qc5+ 38. Kh2 Rc6 39. Rd1 Qc2 40. Rd5 Kg6 41. Qe6+.

Aug-30-14
Premium Chessgames Member
  Cheapo by the Dozen: This is embarrassing -- I ended my previous line one move away from a White 37 Qh6#
Aug-30-14
Premium Chessgames Member
  Cheapo by the Dozen: Is there a refutation to my line I overlooked?
Aug-30-14
Premium Chessgames Member
  agb2002: White has a bishop for a rook.

Black threatens 30... Rxg8.

The black king cannot move and White controls the dark squares around the black castle. This invites to play 30.Qg3, threatening mate in one and to resume the attack through those squares:

A) 30... Rxg8 31.Qg5+ Kh7 32.Qe7+ Kh6 33.Bf6 g5 (33... h4 34.Bg5+ Kh5 35.Qe2#) 34.Bxg5+ Rxg5 (34... Kg6 35.Qf6+ Kh7 36.Qh6#) 35.fxg5+ Kg6 36.Qf6+ Kh7 37.Qf7+ Kh8 38.g6 and mate soon.

B) 30... Rf6 31.Qg5+ Kg7 32.Qxf6+ Kxg8 (32... Kh6 33.Qg7(h8)#) 33.Qg7#.

Aug-30-14  Refused: got it.

30.Qg3 Rxg8 (what else) 31.Qg5+ Kh7 32.Qe7+ Kh6 33.Bf6 g5 34.Bxg5+ Rxg5 35.fxg5+ Kg6 36.Qf6+ Kh7 37.Qf7+ Kh8 38.g6

32.Qe7+ it took me a while to find that one. Once you see that move the rest more or less unfolds automatically

Aug-30-14  stacase: So if White abandons the Bishop at g8, what can be set up while Black takes the prize? Oh yes, White's Queen can make it to g5 in two moves to say check and tear Black a new one. And that first move threatens mate forcing Black to take the prize. I think I would have seen that one over the board.
Aug-30-14
Premium Chessgames Member
  Willber G: <Cheapo by the Dozen: Over the board I'd try

30 Qg3 Rxg8
31 Qg5+ Kh7
32 Qe7+ Kh6
33 Re1 >

Possibly 33...Qxe1 34.Qxe1 Rce8 is better for black. Well, better than getting mated, anyway!

Aug-30-14
Premium Chessgames Member
  Cheapo by the Dozen: It seems that after the fairly obvious first moves, there were lots of ways to finish up the win. Probably a bit easy for this late in the week.
Aug-30-14  TheBish: M Dziuba vs A Ipatov, 2009

White to play (30.?) "Very Difficult"

This may be the easiest Saturday puzzle I've seen in several weeks. White is down the exchange and his Bg8 is attacked, but he can let that go to attack on the dark squares.

30. Qg3! Rxg8

Forced, as otherwise 31. Qg5 will be mate.

31. Qg5+ Kh7 32. Qe7+ Kh6 33. Bf6! g5

Or 33...h4 34. Bg5+ Kh5 35. Qh7#

34. Bxg5+ Rxg5

Or 34...Kg6 35. Qf6+ Kh7 36. Qh6#.

35. fxg5+ Kg6 36. Qf6+ Kh7 37. Qf7+ Kh8 38. g6 Qc5+ (spite check) 39. Kh1, and there is no defense against 40. Qh7#.

~~~~~~~~~~~~~~~~~

Bingo!

Aug-30-14  Sally Simpson: Fist of all what a smashing game.

I was happy enough to spot that Qg3 and RxB was OK. With Qg5+ and Qe7+ in the wind.

Now to play it over more slowly. It's one where you get more pleasure playing over the entire game than solving the check-check-quiet move mate combo.

Aug-30-14  Lighthorse: A stumper for me today, as I couldn't see 33.Bf6. However, I did like the spite check at the end! I wouldn't think higher level players would do that!
Aug-30-14  Sally Simpson: Nice.

Black's forlorn effort to sac-back the exchange to get the White dark squared Bishop off the board. White was not interested.

Was wondering if here...


click for larger view

...had Black played 25...Qa4 instead of 25...h5 White would have repeated with 26.Qb2 and taken a draw.

Tried to see if Black needed the win so declined the draw but neither player finished in the top 40.

Fished about on the winner - discovered he has an infamous blunder to his name.

M Dziuba vs M Rutkowski, 2010

Here White played....


click for larger view

55.Kc2

Perfectly natural in a winning position to place one's King on an opposite coloured square to the Black Bishop.

White resigned after Black's next move.

Aug-30-14
Premium Chessgames Member
  Penguincw: I have to say, this is not really that difficult of a Saturday puzzle. I got 30.Qg3 Rxg8 31.Qg5+ Kh7 32.Qe7+, but from there, that's where I deviated.
Aug-30-14  BOSTER: In this final combo the <key move > is 29.Bg8, and POTD should begin white to play 29.
Aug-30-14  Climatebomb: What happens after 29...Rxg8
Aug-30-14
Premium Chessgames Member
  catlover: <Climatebomb: What happens after 29...Rxg8> The game might go something like this: 30. Qf7+ Kh6 31. Bf6 Qc5+ 32. Kh1 Qg1+ 33. Kxg1 g5 34. fxg5+ Rxg5 35. Bxg5+ Kxg5 36. Qg7+ Kh4 37. Rf4#.
Aug-30-14  Nick46: <posoo: "Dziubalation," LOL> Marc(h)in' to victory.
Aug-30-14
Premium Chessgames Member
  kevin86: The queen finds another way to sneak into black's perimeter.
Aug-30-14  patcheck: The puzzle could start one full move before, after black played 28. … R5c8. Indeed, in this puzzle, after white 29. Bg8+, black answered 29. … Kh6. But they could also have answered 29. … Rxg8 with the following forcing mate:

30. Qf7+ Kh6 (30… Rg7 31. Qxg7#) 31. Bf6 (threatening 32. Bg5#) 31. … g5 (31. … h4 32. Bg5+ Kh5 33. Qh7#) 32. Bxg5+ Rxg5 33. fxg5+ Kxg5 34. Qg7+ Kh4 35. Rf4#

After 31. Bf6, Black could also try 32. … Qc5+ but after 33. Kh1 or 33. Kh2, white will win in the same way.

Aug-30-14
Premium Chessgames Member
  Patriot: <morf> You got much further than I did. I didn't even consider 33.Bf6.
Aug-30-14  patzer2: Very instructive 30. Qg3!! solution to our Saturday puzzle, with perfect follow-up and execution by White for every move of this long combination. If you go to the end of the game and play it backwards for the last 9 to 10 moves the combination becomes very clear.

I completely missed it with my try of 30. g4??, seeing ghosts and visualizing mates in all variations except for the one reply (30...fxg4!) that refutes it.

After 30. g4?? Black turns the tables and wins with 30...fxg4! (all others lose: e.g. not 30... hxg4?? 31. Qg3! Kh5 32. hxg4+ fxg4 33. Qh2#) 31. hxg4 Bxg4! 32. f5 Rxf5 33. Qe3+ Rg5 34. Bf6 Bh3+ .

Aug-30-14  belgradegambit: One of the easiest Saturday puzzles in a while.
Ideas are pretty straightforward.
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