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Dan Vasiesiu vs Gergely Szabo
Lasker Autumn GM (2001), Bucharest ROU, rd 6, Oct-18
Sicilian Defense: Scheveningen Variation. Keres Attack (B81)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Mar-30-07  realbrob: Some minutes of hard thinking but then I got it! A remarkable amount of pins.. It wasn't a very good idea for Black to put his king on the same diagonal of the White queen, even though his position wasn't easy at all.. Could have been an improvement 28..Rf8?
Mar-30-07  zb2cr: I'm with <al wazir> & <mkrk17>. Oh well.
Mar-30-07  scholes: is it wrong ♘d5 exd5 ♖xd6 ♗d7 ♖xd7 ♔xd7 ♖c7+ ♔xc7 ♕xe7
Mar-30-07  triangulation: This has been a good week for me.got the whole thing after about five minutes. The first move seemed pretty obvious. only thing left was to check if black had any saving moves.
Mar-30-07  Bingat29: The set back of 31. Rd7 instead of 31. Rc8, is that, both rooks will be lost. It will thus be 2 rooks for a queen. The alternative 31. Rc7 QxQ, only regains the minor piece with advantage but the game is far from over. White's immediate problem is the threatened perpetual check once black occupies Rh7. Note that the h pawn will be interposed on the g file once the queens are exchanged. There is nothing better than the text move 31. Rc8+ because white retains one of the rooks. Nice puzzle and a brilliant game.

31. Qd5 is best answered by Qn2 threatening mate. No matter white does, blacks gain a tempo and the momentum. If white checks the king moves to e7 threatening to capture the rook.

Mar-30-07  Jack Kerouac: And now chess vanguard, a REAL chess brain teaser to blow your mind: http://www.teamten.com/lawrence/puz... MOBIUS CHESS!
Mar-30-07  mr j: First Friday I have got in a long while :)
Mar-30-07  YouRang: A rare event: I'm 5/5 this week, and I got them all rather relatively easily.

In this very sharp position, tactics abound! Pins, discovered check, and removal of the guard. But the main point that jumps out is the potential for a discovered pin on black's queen.

The black queen can't afford to move for fear of discovered check, nor can it really defend anything off the d8-h4 diagonal because of the pin.

White's only problem is that there isn't any really good square to move the rook to. Capturing the d6 pawn with check would be great, but the e6 pawn is in the way.

This is solved with 29. Nd5+!. As mentioned above, the queen can't move, so it must capture -- and expose the d6 pawn: 29...exd5 30. Rxd6+!

If the king moves to e8, then 31. Rxc8+ Kf7 32. Qg7#, so black must block check with 30...Bd7, but then 31. Rc8+ and black, suffering from ANOTHER pin (now on the bishop), must capture with the king, removing the queen's only guard.

Mar-30-07  outplayer: <daakgotje> I tried 30.Rxc8+. Now i see that this doesn't win.
Mar-30-07  DMBFan23: <OMG I got a Friday>
Mar-30-07  percyblakeney: I had the line with 31. Rxd7+ instead of Rc8+ and it seems to work since black soon will lose one of the rooks to a queen check after 33. Qxe7+:


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Mar-30-07
Premium Chessgames Member
  kevin86: This must have been an easy Friday-as I answered this one 100%. White removes the annoying pawn at e6 by diversion,then uses two pins to capture the queen. Black must capture the knight or face a ruinous discovered check. On the second move,he cannot leave the bishop or it's mate. Finally, he can't help but abandon the queen to capture the rook.

A neat combination of diversion,removing the guard,and pinning leads white to this win---all in a three move span.

Mar-30-07  YouRang: <percyblakeney> That works too. In case anyone didn't get it, the unmentioned moves after 31. Rxd7+ were: <31...Kxd7 32. Rc7+ Kxc7>, and then 33. Qxe7 giving the position that you diagrammed.
Mar-30-07  Veroth: One line to consider in response to Nd5 is Rxb2. Kxb2 allows Qb7! and Qb5. While this saves the queen, I'm not convinced that black saves his king this way. Of course, white could and probably should answer Rxb2 with Ka1. Any further checks by the rook will allow immediate recapture....
Mar-30-07  Themofro: An unusually easy Friday in my opinion. 4/5 this week so far, sad to say i missed yesterday's, but got this one very quickly.
Mar-30-07  tbentley: <Veroth>29...Rxb2+ 30. Kxb2 Qb7+ 31. Ka3 Qb5 32. Rf7+ Ke8 33. Qe7#

After plugging it into an engine I get a forced mate after 30...Qb7+: 31. Ka3 Ke8 32. Nc7+ Qxc7 33. Rxc7 Bd7 34. Qg7 Rxh4 35. Qxd7#

Mar-30-07  TheSlid: Not too hard to see the moves today. Good puzzle, I like being flattered!
Mar-30-07  Stonewaller2: My first thought was 29. ♖cf1, is this just slower or is there something more horribly wrong about it?
Mar-30-07
Premium Chessgames Member
  gawain: I feel that I should have solved this one, even though I did not have a long time to spend on it--for the good reasons given by <dakgootje>. However I had noticed that that W can win the B rook on b3 (or at least the exchange) after Qa5+ then Qa4+ and I could not see past this to any other idea. Unfortunately White's rook at f6 is en prise after the W queen moves. Anyway I should have realized that a Friday idea must be more complex than that.
Mar-30-07  Timex: This puzzle was really easy and I am quite new.
Mar-30-07
Premium Chessgames Member
  playground player: Got it! Wonder if my mind is starting to work properly again. BTW, I saw Rxb2+ as a way of maybe saving the Black Queen; but it won't work if White declines to play KxR and instead simply plays Ka1.
Mar-30-07  MasterSavely: got it... sorta... he won the queen and mate in about a few moves...
Mar-30-07  IMDONE4: this week has been unusually eazy; i hope they make it up with an extra difficult saturday and sunday puzzle!
Mar-31-07  kolobok: 3 sec to solve whole combination this was too easy !!!
Mar-31-07  Fisheremon: White could play Nd5 much earlier on 23 move. After 7...a6?! (7...Nc6!?), 12...g6?! (12...Nf6!?) and 20...Rxb3? (20...Qb7!?) the position was lost for Black.
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