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Niaz Murshed vs Jesus Nogueiras
Capablanca Memorial-A (1991), Havana CUB, rd 2, May-??
Pirc Defense: General (B07)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 1 OF 2 ·  Later Kibitzing>
Mar-03-07  Manic: I got the right move and figured out basically all the lines but I did not look at 28...Qa3 because I did not see that it could be played :(. Nice combination.
Mar-03-07  capa5: Got it too. Easiest Saturday in a long time!
Mar-03-07  alshatranji: Got the moves up to 29. e6, whereupon I thought White had a decisive attack. Also, when I saw the position AFTER I played it out, I found the continuation. So does that count as a solution?! I would be curious to know if grandmasters calculate everything up to the end in a position like that. Or is some part of it based on speculation or a an overall evaluation of the position?
Mar-03-07  MostlyAverageJoe: <capa5: Easiest Saturday> Then help me with these lines:

1) 28. ♖h8 ♕a3 29. e6 ♔c8 30. ♖xe7 ♕xe7 31. ♕xe7 ♖xh8 32. a5 ♖e8

2) 28. ♖h8 ♕a3 29. e6 ♔c8 30. ♖xe8+ ♔xb7 31. ♖xe7+ ♔a6

I see no immediate and spectacular win in either. Eventually, perhaps the g pawn will win the game, but it will take some time, and black's pawns may also get ambitious, no?

Mar-03-07  Magician of Riga: I would assume in a lot of cases they do calculate everything out I mean obviously they are playing for higher stakes than some guy just flipping through a puzzle book so they can't just auto play whatever move looks interesting. I'm sure sometimes they play more speculatively its just kind of hit or miss and its very risky.
Mar-03-07  dzechiel: Great play by Murshed! I missed it completely, not even considering the key move.
Mar-03-07  RandomVisitor: Because 29...Kc8 is an improvement for Black, white should try 29.Rxe8+.

Another try for Black is 28..Qa1+.

Black also missed 24...Qxc2 with about a pawns worth of advantage.

Mar-03-07  chessmoron: <white should try 29.Rxe8+.> Yes but Jesus picked 29....Qd6 which is the 30th move if White plays 29. Rxe8+.

Mar-03-07  think: Why not 28. ... Bxb7?
Mar-03-07  MostlyAverageJoe: <Another try for Black is 28..Qa1+> Then white escapes 29. Kg2, and if 29...Bxb7, then 30.Rxe8 Kxe8 31. Qh8+ [anything] 32. e6+ and black queen is gone.

And if 29 ... Qa3, then nothing new...

Mar-03-07  MostlyAverageJoe: <think: Why not 28. ... Bxb7?> see my previous comment. Same thing.

<RandomVisitor: white should try 29.Rxe8+> Good idea! This forces 29... Bxe8 (29...Kxe8? Qg8#) and white welcomes black back to the original massacre after e6.

Mar-03-07
Premium Chessgames Member
  al wazir: How does white win after 28...Bd7 ?

My try was 28. Rxe7! Rxe7 29. Rh8+. Then there are three lines:

A) 29...Kc7 (29...Kd7 30. e6+, winning the ♕) 30. Qxe7+ Kb6 (30...Bd7 31. e6) 31. Rxa8 Bxa8 32. Qd8+, winning the ♗.

B) 29...Re8 30. Rxe8+ Kxe8 31. Qh8+ Kd7 32. e6+, winning the ♕.

But after C) 29...Bd8 white runs out of checks.

Mar-03-07
Premium Chessgames Member
  al wazir: I see the answer to my question: 28...Bd7 29. Rxe8+ Bxe8 (29...Kxe8 30. Qg8#) 30. Qxe7+ Kc8 31. Qc7#.
Mar-03-07  MostlyAverageJoe: BTW, I think white could've gained advantage earlier by playing 19.Ng5+ instead of Ne5+, no?
Mar-03-07  jmrulez2004: I found 28.Rxe8 ...its not bad for white too...but after cheking thoroughly, 28.Rh8 is the one that gives white a mucxh bigger advantage,so yerp..thats the best move...chess games is right
Mar-03-07  percyblakeney: I got the crucial lines after 28. ... Bxb7 even if I never looked at Qa3. As has been pointed out 29. Rxe8+ is best for white in the game continuation to avoid Kc8 which slows things up a bit, after <28. ... Qa3 29. Rxe8+ Bxe8 30. e6> there are no playable moves for black.

I first had the line <28. ... Bxb7 29. Rxe8+ Kxe8 30. e6> to create a mate threat and see what happens after Kd8 Qf8+ Kc7 Qxe7+, and it took a while to realise the problem with 30. e6 in that position... After eventually seeing it, the Qh8+ followed by e6+ thing winning the queen wasn't too hard to find. This time too I quickly decided on the first move, but now it was the right one...

Mar-03-07  consul: <jmrulez2004: I found 28.Rxe8> You certainly mean 28. ♖xe7, that's the one i got too... and, unfortunately, it's not the best. Perhaps i should take more time...
Mar-03-07  TrueBlue: got it! 6/6 this week. Tried Re7 first, saw it doesn't work and they I saw Rh8!
Mar-03-07  Fisheremon: <MostlyAverageJoe: <capa5: Easiest Saturday> Then help me with these lines:> <I see no immediate and spectacular win in either.>

<1) 28. Rh8 Qa3 29. e6 Kc8 30. Rxe7 Qxe7 31. Qxe7 Rxh8 32. a5 Re8> 32.g5 gives a clear win.

<2) 28. Rh8 Qa3 29. e6 Kc8 30. Rxe8+ Kxb7 31. Rxe7+ Ka6> One may mark here 30.Re8+?!

Certainly 29.Rxe8+ is quicker to the win.

About the whole game: 16...e4? (16...exd4 equalizes)

19.Ne5+?! slipping away advantage (19.Ng5+ gives a clear win)

23.Rb1?! giving Black advantage (23.0-0-0!?)

24...Bd7?? losing (24...Qxc2 still keeping advantage)

Mar-03-07  Themofro: Sigh, i missed, was looking for some spectatular breakthrough sacrifice, lol, needless to say, wasn't there, =)
Mar-03-07
Premium Chessgames Member
  playground player: It's puzzles like this that make me think I don't know anything about chess at all. Anybody for a game of Monopoly?
Mar-03-07  slowcrawl: What happens after 28...Bxb7?
Mar-03-07
Premium Chessgames Member
  tpstar: <slowcrawl> If 28 ... Bxb7 then White can create a winning Discovery on the undefended Qc3 with 29. Rxe8+ Kxe8 (29 ... Kd7/Kc7 30. Rxe7+ wins by grabbing the Bb7 with check) 30. Qh8+:


click for larger view

Now 30 ... Kd7/Kf7 31. e6+ & 32. Qxc3.

Mar-03-07  dispatched33: thanks, tpstar. didn't see the discovery, and the inclusion of the board really helped. how'd you do that incidentally? i've been trying to come up with a graphical way to record positions and haven't had much luck. can you do that at chessgames.com?
Mar-03-07
Premium Chessgames Member
  tpstar: <dispatched33> Hello! Welcome to the group! In late 2005 they enhanced this site by allowing FEN diagrams embedded within posts. The technique is very easy to learn, and diagrams greatly improve communication while avoiding piece placement errors. FEN Help Page

You can put up to 4 diagrams per post. Best of all, if you make a mistake, you just get [bad FEN] and then try again. See you around.

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