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Anatoly Karpov vs Ruslan Ponomariov
Liga de Campeones (2007), Vitoria Gasteiz ESP, rd 3, Nov-04
Slav Defense: Quiet Variation. Schallopp Defense (D12)  ·  0-1
ANALYSIS [x]

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Kibitzer's Corner
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Mar-18-17
Premium Chessgames Member
  al wazir: Damn. I can't view the game with Chess Viewer Deluxe II (or C.V.D. I either) in Firefox. The latest update of Firefox doesn't support Java: https://www.java.com/en/download/he....

Rats. Why would they do that?

It works OK with IE, but not with Chrome.

Mar-18-17
Premium Chessgames Member
  YouRang: Saturday 28...?


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I thought I was on to something with <28...Ng3> threatening the Rf1.


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It seems that White should move the rook (say) <29.Rfe1>, and then comes the attack on the h-file, using Ng3 to block white's queen: <29...Rxh3! 30.Kxh3 Qh4+!>


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<31.Kxh4 Rh8+! 32.Kg5 f6#>


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~~~~

Of course, white can decline the queen with <31.Kg2> but then black has a very nice attack after 31...Rh8

~~~~

It was all so pretty that it had to be right!

However, checking with the computer, I see that white can escape. Instead of moving the rook, he plays <29.f6+>, which gums up the whole works. Maybe it continues 29...Kg8 30.Rf2 and black is losing. Darn computer.

Dumb oversight. :-(

Mar-18-17
Premium Chessgames Member
  ChessHigherCat: I got the first couple moves right but it's more of an epic saga than a puzzle!
Mar-18-17  Walter Glattke: No escape, on 31.Be2 follows 31.-Rg5+ 32.Kh1 (32.Bg4 Rxg4+ 33.hxg4 Qh2#)32.-Rg3 + 29.-f6+, 29.fxg6, 29.Rh1 is all +
Mar-18-17  stacase: <ChessHigherCat: I got the first couple moves right ...>

Same here

Mar-18-17
Premium Chessgames Member
  patzer2: White's game starts to go bad with 27. f5? allowing 27...Nh5! (-1.60 @ 23 depth, Deep Fritz 13)

Instead, 27. Nc5 Qe7 28. Rf2 = (-0.06 @ 23 depth, Deep Fritz 15) keeps it about level.

White's game appears to go from bad to worse with 28. g4? allowing 28...Qh4 (-3.48 @ 23 depth, Deep Fritz 13)

However, other alternatives are not so pretty for White. For example after 28. fxg6 Nxg3 29. Rxf7+ Kxg6 30. Rf4 Nf5 31. Rg4+ Kh7 32. Qf2 Rf8 33. Nc5 Ng3 34. Qe3 Rf3 35. Qd2 (-2.49 @ 20 depth, Deep Fritz 15) White's position looks hopeless.

Earlier, instead of 23. Qe2 allowing 23...Nxe3+ =, White might have maintained a slightly better position with 23. Bxc4 dxc4 24. Rxc4 Nd5 25. Qe8 Nc5 = (0.24 @ 21 depth, Deep Fritz 15)

Mar-18-17  morfishine: The positional transfer of power <28.Qh4> was as deep as I was going this day: March Madness has me fully occupied

<YouRang> There are no dumb oversights in chess, just oversights :)

*****

Mar-18-17
Premium Chessgames Member
  OhioChessFan: Ummmmmmmm. I don't know if prizes are handed out for worst attempt to solve a POTD, but it'd be mine today. Way too tactical. Not a chance.
Mar-18-17  mel gibson: I could never get that -
the computer agrees with the text:

28. g4 Qh4 (28. .. Qh4 (♕d8-h4 g4xh5 ♖h8xh5 f5-f6+ ♔g7-g8 ♗b5-d7 ♖h5-g5+ ♔g2-h1 ♖g5-g3 ♕e3-e2 ♖g3xb3 ♖c1-c6 ♗d6-f4 ♕e2-g4 ♕h4xg4 ♗d7xg4 ♗f4-e3 ♖c6-d6 ♖b3xb2 ♖d6xd5 ♖b2-d2 ♖f1-d1 ♖a8-a6 ♖d1xd2 ♗e3xd2 ♖d5-d8+ ♔g8-h7 ♗g4-d1 ♖a6xf6 ♔h1-g2 e4-e3) +2.71/17 122)

score +2.71 depth 17

Mar-18-17  BOSTER: This is the pos Black to play 31...


click for larger view

I'd play Qg4, where white king has no moves, with the threat Rh3+. White has to play Rf3.
After exf3 Bf1, Bf4 game is over.

Mar-18-17  saturn2: What I saw was 28..Ng3 would be good if there were not f6. I even looked at 28 ..Qh4 but thought it could by met by 29 Rh1 Thats all. Null points of course.
Mar-18-17  BOSTER: White can give up the bishop playing Bd7.
Mar-18-17
Premium Chessgames Member
  sfm: <BOOSTER: I'd play 31.-,Qg4...> White might try 32.Bd7,Qxd7 33.Kg2 as a last resort.
Mar-18-17
Premium Chessgames Member
  wtpy: Once you see how f6 gums up attack you really don't have a lot of options. I got the moves through 31..Bg3 and concluded Black's attack was irresistible. I guess it is possible I have seen this game before because I solved it pretty quickly.
Mar-18-17
Premium Chessgames Member
  Fusilli: <sfm: <BOOSTER: I'd play 31.-,Qg4...> White might try 32.Bd7,Qxd7 33.Kg2 as a last resort.>

<sfm> is right. What Ponomariov played is way stronger.

Mar-18-17  BOSTER: < sfm > ,< Fusilli> :What Pono played is way stronge>. Maybe you are right, but Karpov could play 33.Rf3, not Rg1. IF exf3, Qe7.
Mar-18-17  Cheapo by the Dozen: I didn't think any line that allowed f6+ could be good. So I whiffed on the problem.
Mar-18-17
Premium Chessgames Member
  agb2002: I know this game.
Mar-18-17
Premium Chessgames Member
  ChessHigherCat: <al wazir: Damn. I can't view the game with Chess Viewer Deluxe II (or C.V.D. I either) in Firefox. The latest update of Firefox doesn't support Java: https://www.java.com/en/download/he.... Rats. Why would they do that?
It works OK with IE, but not with Chrome.>

Chrome/Google have had a long-standing feud with Java (I think a lot of Trojans rely on certain versions of JAVA but it's sort of throwing out the baby with the bathwater to disable JAVA -- they should find better security mechanisms instead). Anyway, join the club, that's why I switched to FireFox, too.

Mar-18-17
Premium Chessgames Member
  Jimfromprovidence: I tried 29 f6+, hoping for 29...Kh7, but black has 29...Nxf6, below, with the threat of 30...Nxg4.

So I thought, what if 30 Be2?!


click for larger view

But black has 30...g5!, below. (threatening 31...Bf4, forcing the queen off of the 3rd rank.)


click for larger view

Mar-18-17
Premium Chessgames Member
  Fusilli: <BOSTER: < sfm > ,< Fusilli> :What Pono played is way stronge>. Maybe you are right, but Karpov could play 33.Rf3, not Rg1. IF exf3, Qe7.>

Then Rxd7, Qxd7 Qxh3+, Qxh3 Rxh3+, Kg1 Rh2


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...f2+ is unstoppable and wins.

Mar-18-17
Premium Chessgames Member
  ChessHigherCat: <Kaspablanca: 33.Bg4 Qxg4 34.Rxg4 i see white is well here> If white plays 34.Bg4 instead of 34. Rg1, then the rook would still be on f1 so Rxg4 is impossible (and so is RxBg3, which is what you meant right?) I made the same kind of "wishful thinking" mistake last week, making two moves at once :-)
Mar-19-17  Nova: Why didn't White play 23. Bxc4 dxc4 24. Rxc4, winning a pawn?

I don't see Black's compensation, besides 24...Nd5 blockading the d-pawn. Is there something deeper here that I'm missing?

Mar-19-17
Premium Chessgames Member
  ChessHigherCat: <Nova: Why didn't White play 23. Bxc4 dxc4 24. Rxc4, winning a pawn?

I don't see Black's compensation, besides 24...Nd5 blockading the d-pawn. Is there something deeper here that I'm missing?>

I see what you mean but if Karpov didn't play it there must be some reason. Maybe 24...Qd7 (attacking a4) and the only way to defend would be 25. Ra1, which weakens the king's defenses, followed by 25...Ng4 and if 26. Bd2 or Bf2 then e3 (white can't take e3 of course, because of Re8).

Mar-19-17  Nerwal: <I don't see Black's compensation, besides 24...Nd5 blockading the d-pawn. Is there something deeper here that I'm missing?>

Black has full compensation after 24... ♘d5. White's minor pieces are passive, ♙a4 may become a target, Black has a superb knight on d5 and will secure the strong ♙e4 with f5.

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