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Enrico Paoli vs Ulf Andersson
FRG-ch International (1973), Dortmund FRG, rd 15, Jun-02
Sicilian Defense: Paulsen. Bastrikov Variation (B49)  ·  0-1

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Jan-11-12  David2009: E Paoli vs Ulf Andersson, 1973: Full marks to White for tenacity, but holding the position is too difficult. As the game went, White had too many weak points, not helped by a Bishop out of play. Here's the puzzle position position colours-reversed:


click for larger view

with interactive link http://www.chessvideos.tv/endgame-t... Enjoy dynamiting Crafty EGT's fortress!

Jan-11-12
Premium Chessgames Member
  whiteshark: <tzoogtzvang> What is the issue here?
Jan-11-12  kurtrichards: 20. ... Bg5 - winning the queen at the cost of a knight and a bishop.
Jan-11-12  LIFE Master AJ: Simple puzzle, the tougher question would be: "Exactly where did White go wrong?"
Jan-11-12
Premium Chessgames Member
  kevin86: This one was easy for a Wednesday...Bg5 traps the queen as Qxg5 falls to Nh3+.
Jan-11-12  waustad: I saw a bunch of nothing until thinking "what could I do with that check on h3?"
Jan-11-12  LIFE Master AJ: Gopal,Geetha Narayanan (2597) - Andersen,Mads (2410) [B48] Gibraltar Masters 9th Caleta (4), 28.01.2011

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Be2 Nf6 8.a3 Be7 9.f4 d6 10.0-0 0-0 11.Qe1 Bd7 12.Qg3 Nxd4 13.Bxd4 Bc6 14.Kh1 Rfe8 15.a4 g6 16.Bd3 Nh5 17.Qf2 Bf6 18.Bxf6 Nxf6 19.Rae1 Nd7 20.b4 b6 21.f5 exf5 22.exf5 Rxe1 23.Rxe1 Ne5 24.Be4 Re8 25.h3 Ba8 26.Bxa8 Qxc3 27.Bd5 Re7 28.Re4 Qa1+ 29.Re1 Qc3 30.Re4 Qa1+ 31.Kh2 Qd1 32.f6 Re8 33.Bb3 Qh5 34.Rh4 Qg5 35.Rd4 Qh5 36.Qh4 Qe2 37.Qh6 Nf3+ 38.Kg3 Qe1+ 39.Kxf3 Qc3+ 40.Rd3 Qxf6+ 41.Qf4 1-0

Jan-11-12  dzechiel: <<Once> Is it "zugzwang" or "zoogzwang"?>

"tsook-svahng" (or so I've been told).

Jan-11-12  DrGridlock: White plays on for 20 moves after dropping his queen. As an amusing twist to the game, after hanging his queen out to dry on h6, with move 25 g5, White also maroons his bishop on h6, effectively locking the bishop out from the rest of the game.
Jan-11-12  LoveThatJoker: 20...Bg5 21. Qxg5 (Better than 21. Qxf8) 21...Nh3+ and Black will have a 3 point material advantage.

LTJ

Jan-11-12  BOSTER: This is the position white to play move 15.


click for larger view

Fighting for the space it was necessary to play e5. The white pawn on e5 takes a pressure on f6, weakening the black king's side position.

After 15.e5 dxe5 16.fxe5 Nd7 white position is good.

Jan-11-12
Premium Chessgames Member
  chrisowen: Bishop in it's in the bag bg5 traps queen.

Also fun enough <qh6>?

Match in g5!

Strange move white shoulder.

It g3 charge more resolute ment advantage still in blacks court ok knight f4 off cap problem for white nein?

Jan-11-12
Premium Chessgames Member
  Once: Talking of mispronunciations, one of the funniest I ever heard was a British yoof trying to impress a laydee by inviting her to his room to listen to his "Zed Zed Top" albums.
Jan-11-12  Yodaman: I would say this one was easier than "Medium/Easy". I spotted how black can win the queen in a flash. I suppose "Medium/Easy" is a good difficulty rating because the game isn't automatically over after you win the queen. You have to be able to convert this material advantage to a win and it took Ulf Andersson another 20 moves after winning the queen to persuade white to resign.
Jan-11-12  Samagonka: Great game, great comments... and the great thinkers around here never cease to inspire me.
Jan-11-12  LIFE Master AJ: http://www.ajschess.com/lifemastera...

I could not let this one go ... I had to know where White went wrong. (See my new web page, the link is just above.)

After spending several hours with engines like Fritz 12, Houdini 1.5, Shredder, and Deep Junior ... I thought: "What the heck! How much more work does it take to make into a web page?"

Jan-11-12  M.Hassan: <OhioChessFan: Apparently I'm d the only one who immediately recognized the theme of the trapped Queen and missed the Knight fork after....>

No.You were not the only one since you recognized the "Theme of Trapped Queen" and I did'nt and as such I am ahead of you!!.I was plagued by a chess blindness when confronting this puzzle

Jan-11-12  PeonNegro: Maybe white went wrong when he decided to play against Ulf Andersson (just kidding. Or not?). :)
Jan-11-12  Marmot PFL: 20...Bg5 is not hard to find, if you know you are looking for it. Many players miss counterattacking moves when defending. Ulf Andersson was one of the best defenders of his day though.
Jan-11-12  David2009: E Paoli vs Ulf Andersson, 1973 postscript: <LIFE Master AJ: http://www.ajschess.com/lifemastera... I could not let this one go ... I had to know where White went wrong. (See my new web page, the link is just above.)> Thanks for this characteristically instructive link. Here's the critical position you identify:


click for larger view

In the game White played 17 Qh3!? and lost after 17...dxe5 18.Be3? (Nd5!) g6 19.g4!? (Bh6!) Nf4 20 Qh6?? Bg5! etc (your notes: see the above web link). Instead you suggest 17 Qf3!.

I have fed this position into my favourite chess robot, Crafty End Game Trainer (link: http://www.chessvideos.tv/endgame-t...). You have read the EGT's mind and the game does indeed continue on the lines you suggest with 17...dxe5 18.Nd5 Bxd5 19.exd5 Bc5 20.Bxh7+ Kxh7 21.Qxh5+ Kg8 22.Bxc5 Qxc5+ 23.Rf2 f6 24.Rd1 Rad8 (the first departure from your analysis: you suggest 24...Rfd8) 25.Qg4 Rd6 ( ?). Now I am on my own and found 26.Qe4 Rfd8 27.b4 Qc3 28.Rf3 Qc4 29.Qxc4 bxc4 30.Rc3 Rxd5 31.Rxd5 Rxd5 32.Rxc4 Rd1+ 33.Kf2 Ra1 White is a Pawn up but converting it will be difficult:


click for larger view

(Paoli vs Andersson 1973 possible ending 34?). 34.Rc3 Kf7 35.h4 f5 36.g3 Ke6 37.Rc6+ Kd5 38.Rxa6 Ra2 39.Ke3 Rxc2 40.Ra5+ Ke6 41.Ra6+ Kd5 42.Ra5+ draw by repetition. I judge that Black's central Pawns potentially supported by his King will outweigh the Pawn minus if I try to force the win. Perhaps I am too cautious: over to the interested readers. Further Crafty EGT link to the second diagram to play out the ending: http://www.chessvideos.tv/endgame-t...

Jan-11-12  1stboard: Looks like white's mistake was not playing Bxf4 on move 20... ( instead playing Qh6 ?? )

Then assuming black plays e5xf4 , then white can play Qh6 with threats of Rf3 then Rh3 ( plus pawn capture threat on f4 )

Unless I am missing something ???

Jan-11-12  ChessNewbie55: More like a monday....
Jan-12-12  LIFE Master AJ: <David2009> I won the R+P ending on my 3rd try, but without the computer.

I am sure I could improve with Fritz, not even sure if your line was the best or not ...

Right now, I have a lot of projects going, including several students sending me games to annotate, so no time for more work on this game ... (I am also behind on the January GOTM, ideally it should have already been posted.)

Sorry! (Hope you understand.)

I DO like the links you post ... it can be VERY instryuctive to see how much defence a good chess engine can offer in a possibly lost position, many times you might need help to overcome the best line.

Jan-20-12  bwarnock: If White wants equality (maybe a VERY small plus) he can take the knight: 17 Qxh5 exd4 18 Nd5 Bxd5 19 Qxd5 = / much less interesting than the game though...
Jan-20-12  King Death: < Marmot PFL: ...Ulf Andersson was one of the best defenders of his day though...>

Here's another example in the Taimanov variation from a book of his games that I've read about: K Janetschek vs Ulf Andersson, 1977.

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