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Alexander Morozevich vs Lembit Antsovich Oll
Groningen,FIDE WCH k.o NED (1997), Groningen NED, rd 2, Dec-11
Caro-Kann Defense: Exchange. Rubinstein Variation (B13)  ·  0-1
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Aug-05-11
Premium Chessgames Member
  patzer2: The discovered attack 39...Nb5! exposes the weak White King position to a decisive attack. Black's technique in pressing his advantage for the win is instructive.

In the final position, after the deflection 48...e2!, play might continue 49. Re1 Rxb3 50. axb3 Qxb3+ 51. Qc1 Qc3+ 52. Kb1 Qxe1 + picks off the Rook with a double attack.

Aug-05-11  DrMAL: Good thing Oll didn't play Berthold Suhle in January of 1866. According to Chessmetrics, Suhle was rated 2731 then and thus he would probably have creamed him LMAO.
Aug-05-11  stacase: I would have considered 30...Nb5 over the board, actually making the move would have been another thing.
Aug-05-11  sevenseaman: < rhickma4: I wouldn't have found this OTB. Just knowing it was a Friday puzzle helped. >

Whatever people might say in their humility but 39...Nb5 stands out. And the move has immediate implications on White's placid life.

The no. of solvers finding 39...Nb5 will bear out my assessment of the move's high spottability.

Aug-05-11
Premium Chessgames Member
  gofer: I have been staring at this one for a while and see nothing spectacular. I was even looking at pawn moves like a4. But finally, I see a forcing move...

<39 ... Nb5!>

40 Rxd5 Na3+ 41 Kc1 Qa1#
40 Kc1 Qa1+ 41 Kc2 Na3#
40 Kc2 Na3+ 41 Kc1 Qa1#
40 Qxb5 Rxb5 41 Rxd8 a4 42 R8d3 a3! winning as Qb2# threat and the e3 pawn promoting are very difficult to stop!

<40 Qe4+ g6>
<41 hxg6+ Kg7!>

Desparation sets in...

<42 Rd4 Rxd4>
<43 Rxd4 Rxd4> winning

Time to check...

Aug-05-11
Premium Chessgames Member
  agb2002: Black has a knight for a bishop.

The proximity of the knight to White's king and heavy pieces and the weakness of the dark squares around the white castle suggest 39... Nb5:

A) 40.Kc1 Qa1+ 41.Kc2 Na3#.

B) 40.Qe4+ Kg8

B.1) 41.Rxd5 Nc3+ 42.Kc2 Nxe4 43.Rxd8+ Kh7 - +, with the double threat 44... Qc3+ 45.Kb1 Nd2+ and 44... Nf2.

B.2) 41.Qxd5 Rxd5 42.Rxd5 Nc3+ 43.Kc2 Nxd5 44.Rxd5 Qc6+, etc.

B.3) 41.Qxe3 Na3+ 42.Kc1 Qa1+ 43.Kd2 Rxd3+ 44.Qxd3 (44.Ke2 Qxd1+) 44... Rxd3+ 45.Kxd3 Qxa2 - +.

C) 40.Qxb5 Rxb5 41.Rxd8 a4 - + [Q vs R+B].

D) 40.Q(R)xd5 Na3+ 41.Kc1 Qa1#.

E) 40.Qc1 Rxd3 - +.

F) 40.Qa4 Nc3+ 41.Rxc3 Qxc3, etc.

Aug-05-11  morfishine: Since the puzzles are snapshots (not affording us the opportunity of working-up to this position), instinct invariably forms the basis of our solution. Here, the old saying "Passed pawns must be pushed" seems appropriate. And so <39...e2>
Aug-05-11  morfishine: <sevenseaman>...<Whatever people might say in their humility but 39...Nb5 stands out. And the move has immediate implications on White's placid life. The no. of solvers finding 39...Nb5 will bear out my assessment of the move's high spottability> I spotted it early but didn't give it proper weight nor time.

Oh well, I have the perfect excuse: My wife and daughter are returning from a summer trip and I'm running around like a madman trying straighten things up around here!

Aug-05-11  Skylark: <The no. of solvers finding 39...Nb5 will bear out my assessment of the move's high spottability.> So I should probably be insulted that I didn't?

I spent a long time looking at the implications of Nxb3 or e2 but in the end the solution was eluding me and I peeked. Meh. The answer to a puzzle always stands out really well when you know what it is I guess.

Aug-05-11  sevenseaman: I am sorry if I sounded presumptuous about <39...Nb5>. That was not the intention.

In fact When I first looked at the board it occurred to me that the moment I moved the N out my Rd5 would not have a life. The attackers would outnumber the defenders 3 to 1.

But <39...Nb5> gives that equation a new context. In one fell swoop it generates new compulsions for White and my concerns about the d5 R evaporate. That is why I thought whoever got to the solution would have to take <39...Nb5> route.

I quite agree with <Skylark>'s other contention; <the sol always looks pat when you have it.>

Aug-05-11  David2009: Q: What is the difference between the stock exchange and the Titanic?

A: A band played on the Titanic.

Morozevich vs Oll, 1997 Black 39...?

Try 39...Nb5 GOOT! threatening Na3+. If 40.Rxd5 Rxd5 41.Rxd5 Na3+ 42.Kc1 Qa1#! but not of course Nxc4?? when White wins on material. Before spotting this I spent a lot of time analysing the Pawn sacrifice 39...e2? which simply gives up a Pawn for nothing and then preparing it with 39...g6? much too slow.
====
Black did indeed win starting 36...Nb5. Here's the puzzle position colours reversed:


click for larger view

with a link to Crafty End Game Trainer: http://www.chessvideos.tv/endgame-t... Normally, this would provide an interactive link for you, as White, to play out the combination by dragging and dropping the move you want to make. At the time of posting nothing happens (server overload?) but the link should work in due course.

Aug-05-11  Patriot: I thought 39...e2 may be the answer. 40.Bxe2 Nxe2 41.Rxd5 Nc3+ 42.Kc2 Nxd1 43.Rxd1 Rxd1 44.Kxd1 Qa1+ 45.Kd2 Qxa2+. This doesn't exactly play for a win and after going back over this I saw that 43.Qd3+ followed by 44.Qxd1 wins for white.

Oh well...I didn't have much time to work this out anyway.

Aug-05-11
Premium Chessgames Member
  CHESSTTCAMPS: Black has a knight for a bishop and an advanced pawn at e3. The most important positional consideration is the weakening of dark squares near the white king, a flaw that is ready for exploitation by the BQ occupying the a1 diagonal. The lineup of rooks suggests utilizing the knight battery:

39... Nb5! wins Q for R+B, leaving the white rooks impossibly overburdened defending the white king and stopping the black e-pawn:

A) 40.Qxb5 Rxb5 41.Rxd8 a4! (primary threat is a3, so BQ must be pushed off a1 diagonal) 42.R8d6 Qe7 43.Rd7 Qe4+ 44.Kb2 ab 45.ab e2 46.Re1 Qc4! 47.Rxe2 Rxb3+ 48.Ka1 (Ka2 Qa4#) Qa6+ 49.Ra2 Qf6+ forces mate.

A.1) 42.Ra8 ab 43.a3 (ab Rxb3+ forces mate) Qc3 42.Rc1 Qd3+ wins.

A.2) 43.R1d6 Qc3 44.Rd3 Qe1+ 45.Rd1 Qf2! (Qxg3 46.Be2 allows counterplay) and threats of a3, e2, and ab are too much to meet.

B) 40.Rxd5 Na3+ 41.Kc1 Qa1#

C) 40.Qa4 Nc3+ 41.Rxc3 Rxd1+ 42.Bxd1 Rxd1+ 43.Kb2/c2 Rd2+ 44.Kb1 Qxc3 45.Qe4+ g6 46.hg+ Kg7 and white has no perpetual.

D) 40. Other Na3+ wins BQ or forces mate as in B.

Time for review...

Aug-05-11
Premium Chessgames Member
  CHESSTTCAMPS: White played a better defense than I found in the A-lines, but the game played out in line with the general considerations in the preamble.

<<David2009> <..A band played on the Titanic. >> So much for my break from ugly reality...

Aug-05-11
Premium Chessgames Member
  CHESSTTCAMPS: <David2009> <At the time of posting nothing happens (server overload?) but the link should work in due course.>

No, I think Crafty gets tired of playing lost positions and occasionally throws a hissy fit.

Aug-05-11
Premium Chessgames Member
  kevin86: I saw the first move,but not much after. The pawns will win this one...
Aug-05-11
Premium Chessgames Member
  beenthere240: Like <standardwisdom>, I was also attractd by 18...Nxc3. It's a great shot that transforms the dynamics of the game immediately.
Aug-05-11  dfcx: White can draw with
39... Nb5 40.Qxb5 Rxb5 41.Rxd8 a4 42.Be2! Rb7 43.R1d6

then 43... Qe7 44.Bd3+ g6 45.hxg6+ fxg6 46. Rxg6 white wins

or 43... Qc3 44.Bd3+ g6 45.hxg6+ fxg6 46. Rxg6 Qe1+ draws

Aug-05-11
Premium Chessgames Member
  doubledrooks: I went with 39...Nb5.

One interesting line is 40. b4 Na3+ 41. Rxa3 Rxd1+ 42. Bxd1 Rxd1+ 43. Kc2 Rd2+ 44. Kb3 Rb2+ 45. Ka4 Rxb4+ 46. Qxb4 axb4


click for larger view

Aug-05-11
Premium Chessgames Member
  Jimfromprovidence: I did not get it. I missed the subtleties to this puzzle after 39Nb5.


click for larger view

I missed that the king has no escape moves; both 40 Kc1 and Kc2 lead to mate in two.

I also missed the key move after 40 Qe4+ Kg8 41 a3, below. (hoping for 41Nxa3 42 Ka2).


click for larger view

Here black has the winning 41Nc3+, with 42 Rxc3 Qxc3, etc.


click for larger view

Aug-05-11  Creg: I started off looking at advancing the e-pawn, but couldn't find anything worth while. I then began looking for ways to get the queen involved by opening the a1-h8 diagonal. I finally saw...

39...Nb5 This threatens 40...Na3+ forking K+Q and threatening Qa1 mate. I really don't see a good move for white here?

40.Qa4 simply allows 40...Rxd3 41.Rxd3 Nc3+ 42.Rxc3 Qxc3 and the white king doesn't look too good.

-----
I didn't look at 40.Qxb5 as I thought this simply admitted defeat, though it does appear to be white's best try for something.

Aug-05-11
Premium Chessgames Member
  chrisowen: Coined a term in real cliffhanger marks e2 or b5.

lemmy see hawk decisions decisions to make wind rope rat as high as 17 18 19 white den I grate scroll.

it cracks in c5 Mother Gaia must retreat ear thin call aha nb5 stage in x

rever so ~

and no me ow I went angle pe2 nuts.

Aug-05-11  morfishine: <sevenseaman: I am sorry if I sounded presumptuous about 39...Nb5...> No need: I saw you missed the Tuesday Puzzle but you came right out and admitted so :) Morf
Aug-07-11  LIFE Master AJ: <David2009 ... <<with a link to Crafty End Game Trainer: http://www.chessvideos.tv/endgame-t... Normally, this would provide an interactive link for you, as White, to play out the combination by dragging and dropping the move you want to make. At the time of posting nothing happens (server overload?) but the link should work in due course.>>>

http://www.chessvideos.tv/endgame-t...

1.Nb4, QxN/b4; 2.RxQ/b4, RxR/d1; 3.g4, R/1-d3; 4.Qe2, Be7; 5.Rc4, Rd2; 6.Qe1, f5xg4; 7.RxP/g4, g5; 8.Kg2, Kb7; 9.a5, b6xa5; 10.Qb1+, Ka8; 11.Qh2, Bc5; 12.Qe4+, R/8-d5; 13.RxP/g5, Kb8; 14.QxR/d5, RxQ/d5; 15.RxR/d5, Bb4; 16.RxP/a5, Be7; 17.Rd5, Kc8; 18.Rd7, Bb4; 19.RxP/a7

Dec-08-13  davide2013: I don't understand Morozevich in this game. He went pawn hunting, and forgot his king in the center. Then he starts to push pawns on the kingside, but there are no pieces to support the attack, so what is the reason to push pawns if there are no pieces to fill up the space left behind? Then he let Black have a central pawn mass which transform itself in passed pawn. Maybe it was a blitz game?
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