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Arni H Kristjansson vs Ingimar Brynjolfsson
Iceland (1995) (correspondence), corr
Sicilian Defense: Najdorf Variation. Poisoned Pawn Accepted (B97)  ·  1/2-1/2

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Dec-04-05  TTLump: <al wazir> 32...Qxc2 is answered by 33.h3 ... right away, and I don't see how Black gets a perpetual from this position.
Dec-04-05  The Saragossa Man: I didn't like this puzzle at all. Who wants to 'solve for draw,' especially when you don't even know you're trying to draw the game? How were we supposed to know when the puzzle is solved and the sequence stops? Just think to ourselves, "Oh, the position is drawn here; they must have agreed to a draw at this point." ? Puzzles should be 'play for mate' or 'win the queen' or something like that, something winning.
Dec-04-05
Premium Chessgames Member
  TheAlchemist: <The Saragossa Man> This way, it's more like in an actual game. There, you don't get hints that like "White to play and win" or mate or whatever.
Dec-04-05
Premium Chessgames Member
  kevin86: It looks like white has to settle for a field goal,er,I mean a draw. Black cannot escape the queen's checking.
Dec-04-05  wellwisher: After move 23 Nxf6 then after 23 Kxe7 then 24 Nd5 check looks like a winner! If kd7 then Qh4 wins! BxR followed by mate threatened. other king moves lose. then black must play QxN which gives white winning edge! not 23 Bxe8 ck which leads to draw as played in game. :)
Dec-04-05
Premium Chessgames Member
  al wazir: al wazir: <TTLump: 32...Qxc2 is answered by 33.h3 ... right away, and I don't see how Black gets a perpetual from this position.>

33. h3 Qd1+ 34. Kh2 Bxd5. If 35. Qxd5 then 35...Qxd5 36. exd5. White has two passed pawns on the K side, but after 36...Kb4 black will also queen. If 35. exd5 Qd2 I think white can stop the perpetual, but the final outcome isn't clear to me. If 35. Qd8+ Kxa4 36. Qd7+ Kb3 I like black's chances.

(And I doubt if even GMs could analyze that far ahead under time controls.)

Dec-04-05  TTLump: <wellwisher> after 23.Nxf6 Kxe7, 24.Nd5+ Kd7, 25.Qh4 Re6, 26.Bg4 Kc6, 27.Qd8 Kb5, 28.Nc7+ Kb4, 29.Nxa8 Qxc2 and I would still give black the edge in this position.

Dec-04-05  TTLump: <al wazir> better for white is 35.Qd8! Kb5, 36.Qxd6 Qd4, 37.Qxd5+ Qxd5, 38.exd5 Kc5, 39.d6 and it's a textbook King/pawn end-game win for white.

Dec-04-05  Kola: Is anybody thinking of 26.Nh7, when white still has 27. e8=Q,and the nasty discovered check (which apparently leads to mate if Ke7); and also, the new, 27. Qf6? However, blacks king may be able to get away through the d8 square if he takes on e7 and white begins the discovered check sequence.
Dec-05-05  OneArmedScissor: 27. ...Bxd7 28. Qxh7+ what about <28. ...Ke6>?
Dec-05-05  monad: <erimiro1: My first reaction to 14.Ne6! was: >

I have to agree with you. I could not make much headway either, even after Nf8 for Black. So I am adding my apologies to Iceland :-)

Dec-05-05  TTLump: <Kola> after 26.Nh7, white no longer has the "nasty discovered check" available to him and also, black can't take on e7 because the White queen now guards that square, but even more to the point, after 26.Nh7 Kg7, the loss of a tempo spells big trouble for White ...
Dec-06-05  Cogano: I only just got the chance to check this game's kibitzing. So I just wan- ted to take the opportunity to express a belated hearty thank you to cycle -math for answering my enquiry. Take very good care and have yourselves a most joyous day, every day, one and all.
Dec-07-05
Premium Chessgames Member
  al wazir: <TTLump:> I doubt if you or anyone else is still interested, but in your line following 25...Kxe7 black has another resource: 26. Nd5+ Kd7 27. Qxh7+ Kc8 28. Qh8+ Kd7 29. Qg7+ Kc6 30. Qc7+ Kb5 31. Qxb7+ Ka5 32. Qxa8 Qxc2 33. h3 Bxh3!, threatening mate (diagram).


click for larger view

White has four main alternatives: A) 34. Ne3 Qc1+ 35. Kh2 Qxe3 36. gxh3. Now with 36...Qf2+ 37. Kh1 black can either take a perpetual or pick up the a pawn, leaving a difficult endgame which is probably drawn.

B) 34. Qd8+ Ka4 (not 34...Kb5 35. Qb6+ Ka4 36. Qb4# or 35...Kc4 36. Ne3+, winning the queen) 35. Nb6+ Ka5 (not 35...Ka3 36. Qxd6+ Kxa2 37. Qd5+ Kb1 38. gxh3 Qc1+ 39. Kg2 Qb2+ 40. Kf3 Qxb6 41. Qxe5, with a won ending) 36. Nd5+ Ka4, with a draw by repetition.

C) 34. Qd8+ (the immediate 34. Qg8 is answered by 34...Qxe4) Ka4 35. Qg8 Bxg2+ 36. Qxg2 Qxg2+ 37. Kxg2 Ka3 38. Kg3 Kxa2 39. Kg4 Kb3 40. Kf5 a5 41. Nb6 Kc3 42. Ke5 Kd4 draw.

D) 34. gxh3 Qxe4+ with a perpetual. This isn't quite trivial to demonstrate, but by staying mostly on the b1-h7 diagonal the black queen can keep the white king bottled up in the corner.

Dec-09-05  wellwisher: <TTLump> After 25.... Re6 Bf7 then if Kc6 Qd1 looks strong
Dec-09-05  wellwisher: <al wazir> White has Qxa6 with pawn up! with n fork
Dec-10-05
Premium Chessgames Member
  al wazir: <wellwisher>: Right you are! I wonder how many other complications I've missed in this position.

However, after 34. Qxa6+ Kxa6 35. Nb4+ Kb5 36. Nxc2 Be6 37. a3 Kc4, black picks up white's e pawn. Now we have a very interesting endgame (diagram):


click for larger view

I'm sure that it's standard and well analyzed, but I don't know who is supposed to win. Can anyone tell me?

Dec-10-05
Premium Chessgames Member
  al wazir: <wellwisher>: I've played it out a few times; black wins in most of them, white in none. Black's bishop is too mobile, white's king is too far from the action. We'll call your suggestion variation E), but I don't think it's an improvement on A), B), C), or D).
Dec-11-05  wellwisher: After 35....kb5 fritz gives a4+ which leads to a draw after kxa4
Dec-15-05  patzer2: White forces a draw by perpetual check with 25. Nxf6+! In the final position, White secures the draw after <25.Nxf6+ Kf7 26.e8Q+ Rxe8 27.Nd7> 27...Bxd7 28.Qxh7+ Ke6 29.Qh3+ Kf6 30.Qh6+ = 1/2 1/2 for a draw by repetition.
Dec-15-05  patzer2: Apparently a mistake for Black is 25...Kxe7?


click for larger view

Following 25...Kxe7?, White secures a decisive advantage with 26. Nd5+ Kd7 (26... Kf8 27. Qe7+ Kg8 28. Nf6+ Kh8 29. Qxh7#) 27. Qxh7+ Kc6 (27... Kc8 28. Qh8+ Kd7 29. Qg7+ Kc8 30. Qf8+ Kd7 31. Qe7+ Kc6 32. Qc7+ Kb5 33. Qxb7+ ) 28. Qc7+ Kb5 29. Qxb7+ Ka5 30. Qxa8 .

Dec-29-05  Cogano: If everyone would forgive my bringing up this issue again (I thought <cyclemath> cleared it up for me), I don't see the point of the draw, from Black's perspective: After 27.Nd7 Bxd7, the best White can hope for/look forward to is perpetual check. So, since White's position isn't exactly a clear-cut winning/winnable one, why would/ should Black resign. Thanks to all. Season's Greetings & Happy New Year. Take very good care all & have yourselves a most joyous day, very day.
Jan-09-06  patzer2: <Cogano> Black didn't resign. He accepted White's draw. Black saw that White (a 2400 plus rated player) intended to force the perpetual and that he couldn't stop it. So he accepted the draw offer instead of forcing White to play out the obvious continuation.
Jan-14-06  Cogano: <patzer2> Hi. Thanks for the clarification and do forgive my oversight. I should've noticed that. Thanks again. Take care and have a good day. Cheers!
Jan-21-09  WhiteRook48: hmm, interesting draw.
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