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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


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Kibitzer's Corner
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Aug-30-14  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.

Premium Chessgames Member
  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>


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



Premium Chessgames Member
  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.

Premium Chessgames Member
  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!
Premium Chessgames Member
  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


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.

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
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.
Premium Chessgames Member
  kevin86: The queen finds another way to sneak into black's perimeter.
Premium Chessgames Member
  chrisowen: I dim loot rake over at b3 an g3 a mate is bound to get;

come at have all these bishops cover squares like aim g8 and mind you d4 too over get a clean g7 up plyside afoot twinning at bet river slide as g3 first cant be stopped for won as flight aim cred i gantry in cad a delve free each dawns downs black side have act ever the try cull to con c4 seems to be the key it is in accordance to cover back rank although black rove should have taken arm c4 and given back the exchange off re you have as g7;

marks the spot in fly a clink i be as the cutoff g8 a point h6 woud heave up mate in 13 or so at i delve at cad exchange sacrifice headlong bishop choose sights a g8 bold job if ive this correct g8 wins by force h6 up have a do as at again light dark square bishop proves a real asset a quilt mind rake free to fire in the belly black never recovers entirely from his decision to part g7 comes back to haunt him bless cotton socks at b3 and g8 black gets a dupe thrown over a retreat c8 when best to take the c4 bishop act chip in down;

staves off mate a relic for berk c8 looses on the spot mad do the dive g8 and alf really done jazzy block aim c4 aim crappy a c8 iffy oh door it book in a slot c6 or c4 aim dead for deed it edge have a flight kings h6 a door would prove transparent;

but in this case light simply traverses his lady at g3 i met ramp g5 wins by a rich degree a dance better glide armed it now in focus again an ergo a devious ploy in cap it a link in aloof h6 churlish although what else black is stuck in a hole low in;

a gog queen slide I against trade of bishop g7 maybe he thought to hold on to his available rook exchange up in aether g7 proves a very soft spot as live I harangue blubb queen surveys all bad by better degrees white infiltrate have act farm away i prepare g8 too as a sacrifice good in dig boot fetch dipoff as too drives in bet check all to bid a drove on g3 back dance doors a study like dismantle of weak g5 square and general dark squares around black king drum up a quad grip in have at by the way good save material down for quench hoof flubb arms alive in at b3 an g5 drill targets the black monarch cant run as no where to go so bet a heads up g3 a driven check at huffles around h7 as in het up ace a c5 had c4 now in victor sights a c8 bad to breathes 28...Rcc8 bodge job do band bind bottles c8 up have ok c4 bull shin;

and bullseye removes a threat ok debonair bone and cut bold again low c4 blood on c8 rail churlish cadavers again bishop a g8 entomb conquest over mate a cable wire bus at g3 down in eleven caught h7 inch effect hive he g3 cufflinks at safe choose a path since hoof he face off fleece have engine rate a ram c4 buck basic case botch came too for cobble the streets pave crave in bow brazen sac of re g8 coccyx spine h6 up a bounce to catch should have to crampers 28...Rxc4 brood over boggled c8 as to why mans at back bond ive again camp clod hanger true delight came court cred to the core as on c4 cinch ay wire get rid of the cower bishop horns entangle in fed came definately clutch flounce g8 fancied his c4 chances and too right sac defile in face off fled creep flat as a pancake c8 you boldy go low cases a fang tooth cost to flog cues a fringe away safe cog c4 soft clung at c8 het up ply luck back mack a vow queen wins after bishop g8 check h6 a king vows at h7 longs for freedom in a tour h6 a labyrinthian mother earth sights from afar there she free blows at core 30.Qg3 mate in eleven since boy oh boy me thod g5 carry in back about show boat a bat cage it is ok in over abort g6 mission choose at take down g5 line give wobble h7 and lovely e7s right roll long for lord of the manor mate nine c8 in elevates lost it ok in ogle g5 success be cognizant clog up la boot g5 wins a give ged off queen hurry f6 check some thod at h7 gets into the trap heads g6 up an fervious sic form queen fancies at gain h7 it seem like for won;

longer bil to rights again save einger famile h7;

and g6 combo good sprung from the turf cuff toggle fact to give mate at bar get chuck a queen face to grow c5 an g1 leap frog a court thrown out queen gone around beat down a real crack and crock as g1 monsier shamble finish f7 knock out con c4 fag free pieces pin balloon h8 do hoodwink afoot thin lot grieve h7 mate register kings head a h6in the sand choose clean pair of heels cast got hung a g6 dank flank dance geisha accompany queen gives hogs and clogs the artery f7 to play on h7 try energetic snooze h7 electric blanket boogie on;

down g-file hob soggy rates have cast hive queen at gum up tree balance red off gap have g5 g6 so hire a foot man plod and pedal a f7 swing around h7 intrepid manage f7 do as quip h7 bad gas rate basic do fend his re-enter a f7 bars do level saint a d7 unable to partake it learn in level it is down in dig again vindicate ship lemon g6 a good turn g5 up batch hi plight smoothe h8 under a path no query g6 to promote again mate at h7 it slim man pop aced in scude raid a more g5 i ment g6 ar concern h8 drill bang of h7.

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  Patriot: <morf> You got much further than I did. I didn't even consider 33.Bf6.
Premium Chessgames Member
  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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