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Viorel Iordachescu vs Anatoly Karpov
GorenjeTournament (2007), Valjevo SRB, rd 5, Jun-17
Spanish Game: Closed. Martinez Variation (C78)  ·  0-1
ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Jun-11-08  eblunt: <dTal: hmm... is there anything wrong with 42.. f4+ 43 g3 h5 ? >

44 ♕d8+ ♔h7 45 ♕g5 breaks the pin

Jun-11-08  stacase: I had thought that 43 ... Rg1 worked just as well but I see White's Rook can slide over and cover g2 supported by the King. Over the board and for keeps, yeah 43 ... Qe1 does the trick.

All in all, I thought these puzzles weren't supposed to have obvious first moves. (-:

Jun-11-08  znprdx: Well the obvious 41....Qg1+ 42. Kg3 Qf2+43.Kh2 seems to only draw by perpetual check since now ...Rg1cannot be played because White will get the perpetual. 43....Qf4+ 44.Rg3 may hold.

Since g3 is the White Kings flight square 43...Nc1 heading for e2 should at least net the exchange after 44. Rd2. Perhaps the immediate 41...is more efficient. Presuming 42.Rd2? Nx[B]a2 43.Qx[N]a2 now Qg1+ 44. Kg3 Qe3+ bags the rook. I won't be surprised if there is a more elegant way to win....

....DUH arrrgggghhh as Charlie Brown would say – I can’t believe I missed it. Once again ‘patzeritis’ sets in – complicating the simple. However OTB as a 1 ply option I’d like to think I’d surely find Qe1.

...I don’t feel so bad – except that missing the Rf2 line is doubly humiliating.

Jun-11-08  234: Tuesday puzzle <19. ? Jun-10-08> Morphy vs T J Bryan, 1859
Jun-11-08  vangogh228: It's amazing what inefficiency does to your chances. Instead of 43.Qe1, the move that ends the game, I saw 43.Rg1 Rg3 44.Qf1.

I was so proud of myself that I forced Black to cut off his escape and that the end was inevitable... but wait!!! 43.... Rxg7+ and now I have no better than a perpetual check and have tossed away a win. Wow.

Jun-11-08  dTal: eblunt indeed, thanks.
Jun-11-08  zb2cr: Found it; nothing to add to the very fine explanations here, especially by <dzechiel> (as usual).
Jun-11-08  Gryz: I had missed Qe1 too.
But I thought my continuation was winning too. Can anyone find a way out of this for black ?

41. .. Qg1+ 42. Kg3 Qf2+ 43. Kh2 Qf4+ 44. Rg3 h5

And now the threat is h4 and white captures the rook, or might even give mate. White can do Qd8+ Kh7. But that's it.

Jun-11-08  SuperPatzer77: White has no defense against the mating threat of 44...Rh1# or 44...Qf2# (if 44. g3 or g4) after 43...Qe1!

In my opinion, 43...Qe1! is much stronger than 43...Qf4+ so, it is simply best - 43...Qe1!.

SuperPatzer77

Jun-11-08  MiCrooks: This problem is pretty well cooked. The obvious Qg1+ leads to no less than FIVE moves that evaluate to over a rook ahead (-5).

I came up with Rf2 as the follow up which is slightly inferior (if you can call (-13.94 inferior to -14.50!). White is forced to sac the Queen on f7+ to keep from being mated so that's game over. The same would have happened in the game had they played it out. To avoid being mated in the game position White also has to sac on f7+ and then trade rooks. The resulting positions are very similar.

Jun-11-08  euripides: <Gryz> <41. .. Qg1+ 42. Kg3 Qf2+ 43. Kh2 Qf4+ 44. Rg3 h5> that was what I saw as well, when 45.Qd8+ Kh7 46.Qf8 fails to g6, but White has the stronger 46.Qg5 when he can fight on. He might also try 45.h4 but Qc1 looks strong.
Jun-11-08
Premium Chessgames Member
  YouRang: Yep, the first couple of moves were fairly obvious because there is nothing else:

41...Qg1+ <the sheer gravity of this moves makes it hard to resist>

42.Kg3 Qf2+ <okay, now our rook and queen are in close proximity to white's poorly defended king>

43.Kh2 <surely having your king run naked toward the enemy pawns can't be better>

Here, my first idea was the tempting 43...Qf4+, but fortunately I stopped to consider my other options and 43...Qe1 creates a mate threat that white apparently cannot withstand.

Jun-11-08  Magic Castle: <Microoks & others) The real key to solving this puzzle is the move 42. Qf2+ Kh2 followed by 43. Qe1.!!! and mate in Rh1. All other continuations other than these sequence gives black an escape. For example. 42. Rf2 Kh4. If 43. Rxg2 Qxe5 44. Qe1+ Rg3 45. Qd1 Kxh6 (if 45. Kh2 Qg2#) and black is in trouble. Now if 42. Qxg2 Qxe5 53. g5+ only check and the same result. For me I got Qf2 but followed up by Qf4 not seeing Rg3.
Jun-11-08
Premium Chessgames Member
  kevin86: My move was somewhat different:

41...♕g1+ 42 ♔g3 ♖f2

It may not be as good as the text,but is it doable?

Jun-11-08
Premium Chessgames Member
  patzer2: Karpov's 41...Qg1+! solves today's Wednesday puzzle with a mating attack. See <SuperPatzer77>'s commentary on the key follow-up 43...Qe1!
Jun-11-08  Marmot PFL: After 41...Qg1+ 42.Kg3 I intended Rf2 (instead of Qf2+) as there is no way to defend g2, nor does white have any threats. In fact white has nothing but useless queen checks to delay things for a move or 2.
Jun-11-08
Premium Chessgames Member
  Once: <kevin86> Your line works fine. I'm looking at this with Chessmaster 9000 instead of my usual Fritz9. It sees nothing better after your line than throwing the queen with 43. Qxf7+ - the computer equivalent of resignation. Evaluation of -18.

Other lines work too. Anyone who wanted to play 43. ... Qf4+ can take heart from this line 44. Rg3 Qc1 and white has to jettison material to avoid mate with Rh1+. CM evaluates as -5.

Even the prosaic 43. ... Qxb2 leads to a decisive advantage. Black threatens the white bishop, retains mating chances along the back rank and is ever closer to queening a pawn. -3.7.

For that matter, white is so tied up that passive black moves also win. As an experiment I got Chessmaster to look 43. ... Kh7. After a minute or so, its evaluation had risen to -12.

Okay, so chessmaster 9000 may not be the strongest engine in the world, but I don't expect a vastly different results from a stronger program.

43. ... Qe1 is certainly the star move, but by no means the only answer here!

Pilots say that any landing you can walk away from is a good landing. Perhaps we can say that any chess move that makes your opponent resign is also a good move?

Jun-11-08  Magic Castle: <MarmotPL> As I have said capturing g2 does not insure a win for black. Looks like you ignored my post. Rf2 is a blunder in my opinion. Did I miss anything please read my post and tell me what is wrong with it please.
Jun-11-08  Magic Castle: <Once> What does CM suggest to the reply to 44. .. Qc1 - 45.Re3 providing the king a hole in g3. Karpov's moves sequence seemed to be the fastest and surest way. Other systems are too complicated and may even lead to perpetual check or trouble for black. Please see my earlier post and comment on it.
Jun-11-08
Premium Chessgames Member
  DarthStapler: I didn't get it
Jun-11-08
Premium Chessgames Member
  Once: <MagicCastle> 41. ... Qg1+ 42. Kg3 Rf2 43. Kh4 Qxg2 44. Qxe5 Rf4+ 45. Qxf4 g5+ and white loses his queen and cannot prevent black's queen giving mate on the g file.

Can't claim the credit for spotting this - chessmaster 9000 did the hard work. <Marmot PFL's> 42. ... Rf2 looks perfectly fine to me.

Jun-11-08  Marmot PFL: <Magic Castle> No, I didn't read all the messages, but going back to read yours I don't see how white can escape after 42...Rf2 43.Kh4 Qxg2. If your 44.Qxe5 black if nothing else has Rf4+ 45.Qxf4 g5+ winning the queen, or 45.Kh5 Qg6 mate. Sure Karpov's move is more elegant and probably quicker. Once I find one way to win I don't usually look for others though, unlike some of the more diligent analysts here.
Jun-11-08  Kasputin: I saw 42...Qg1+ but didn't really think about the follow up Qf2. Instead, I looked at 43...Rf2, which I also think should win this one.
Jun-11-08  littlefermat: Ugh. I got the entire line but was thrown off by the tempting Qf4+

UGHUGHUGH. I need to be more patient when I check.

Jun-11-08  SuperPatzer77: After 43...Qe1!, White's despair is 44. Qxf7+ Kxf7, 45. Rf3+ (only move to escape the checkmate) Rxf3, 46. gxf3 Qf2+, 47. Kh1 Qxb2, 48. Bxb3 axb3 --> Black's b-pawn goes queening to checkmate White.

SuperPatzer77

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