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  "Chess Games" Problem of the Day  

  Saturday;  October 13th, 2012.  


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   IM Richard Forster (2315) - GM Robert Huebner (2605);   
  [B86]  
   National Champ. (SUI-chT)Zurich, Switzerland; (R#6), 1994.   

cg-potd_11__medal.gif, 03 KB

  [A.J. Goldsby I]  

This was the POTD for Saturday; October 13th, 2012.  (An interesting game ... and also it was a great combination.)   

     ***************************************************************************************************************************************     

     1.e4 c5;  2.Nf3 d6;  3.d4 cxd4;  4.Nxd4 Nf6;  5.Nc3 a6;  (prophylaxis)    

Fischer's favorite opening - as Black. (Open Sicilian - Najdorf System.)  

 

White responds with the Sozin System. (Another favorite of Bobby Fischer.) 

     6.Bc4 e6;  7.Be3 Be7;  8.Bb3 0-0;  (King safety.)   

Thus far, all of the moves are pretty normal ... "book" moves. 
[ For more on the Sozin, see MCO-15, page #333 ... columns #31-36, & all notes.]   

 

     9.g4!?,  (space, disruption)   

White lashes out on the K-side.   

 

cg-potd_11__diag01.gif, 21 KB

   rnbq1rk1/1p2bppp/p2ppn2/8/3NP1P1/1BN1B3/PPP2P1P/R2QK2R b KQ - 0 0   

 

This move is not entirely without any real chess logic. 
(Since Black usually plays on the Q-side, White naturally plays on the opposite side of the board.)  

9.g4!?  is not a new move, it was first played in the year, 1967. 
(And it was analyzed in chess magazines - even prior to that.) 
[ For a relatively early example; see the interesting contest: 
P. Toth - F. Padilla; / FIDE (men's) Olympiad; (final-C) / Skopje, Yugoslavia; 1972
 I looked for - but did not find - this game, in the CG database. - editor ]   

 

                         [ The main line would probably be the following continuation:   
                            9.0-0 Nc610.f4 Nxd411.Bxd4,  "+/=" (w/ a plus)  11...b5;  "<=>"  (counterplay)  
                            when White has a fairly decent edge here, but Black also has good play. 

                            See the historic (titanic) struggle:   
                            Bobby Fischer - Boris Spassky;  /  FIDE WCS Match, Game #4   
                            Reykjavik, Iceland; 1972. ]   

 

The main line here is  9...Nc6; but Black's move is not bad. (The box prefers that White castle K-side on move ten.)   

     9...Qa5!?;  10.f3!? Nc6;  11.Qd2 Bd7!?;  (hmmm)    

This might have been inaccurate. 

(The machine recommends that Black play:  11...NxN/d4; 12.Bxd4,  and then  12...Nd7!;  with a good game, and approximate equality.)   

 

     12.g5 Ne8!?;  (dubious?)   

This is somewhat questionable, the iron solicitor recommends 12...NxN/d4;  and then  13...Nh5.   

 

     13.h4 b5;  14.0-0-0,  (King-safety)   

White naturally castles ...   

However, there may have been a line (see below) that gave White a bigger edge than in the way that the actual game was played.   

 

                         [ Probably better was:  >/=  14.Nxc6! Bxc615.h5 b4!?;    
                           16.Ne2 d5!?17.Nd4 Bd7 18.exd5 exd519.g6!,  "+/="    
                            when White has a monster attack. (Fritz and Houdini) ]   

 

     14...Nxd4;  15.Bxd4 b4;  16.Ne2 Qb5;  17.c4!,    

White gains space, with a gain of time as well.   

 

 

cg-potd_11__diag02.gif, 20 KB

  r3nrk1/3bbppp/p2pp3/1q4P1/1pPBP2P/1B3P2/PP1QN3/2KR3R b - c3 0 17  

 

Fritz (and also Houdini) shows that White has a small, (but solid); edge in this position.  

 

                         [ RR 17.Qd3!? ]   

 

     17...Qb7;  18.Kb1!? a5;  19.Bc2 Rc8!?;   Maybe (>/=) 19...a4.    
     20.Bd3 e5;  21.Be3 f5!;     

Now Black gains some space ... on the other side of the board. 
(The current position is roughly equal ... according to all of the engines that I use.)  

 

Now - White sacks a Pawn for play. (The machine recommends 23.f4.)  

     22.exf5 Bxf5;  23.Ng3!? Bxd3+;  24.Qxd3 Rxf3;  
     25.Nf5 Bf8;  26.Rhf1 Rxf1!?; 
(opens the f-file)   

This is natural - but doubtful. (Fritz and Houdini recommends that Black play  >/= 26...g6;  instead.)  

     27.Rxf1 Qc6;  ('?')  <Error.>   

Black's last move is a seemingly great move, but turns out to lose a subtle tactical device.   

 

cg-potd_11__diag03.gif, 18 KB

   2r1nbk1/6pp/2qp4/p3pNP1/1pP4P/3QB3/PP6/1K3R2 w - - 0 0   

 

We have now reached the position for the Saturday P.O.T.D.   

 

                         [ RR  Better was:  >/=  27...a4and now  28.Ng3,  "~"   (unclear)  
                            is about equal play ... ... ...  for both parties, here. ]  

 

Now it is a chess problem, "White to move and win."  

     28.Nh6+!! gxh6;  29.Qf5!,   

This somewhat shocking "in-between" move ... (I expected 29.gxh6.) ... hitting the unprotected Bishop on f8 ... ... ... 
is the key to White's attack. (White threatens QxB/f8#, so Black's options are now severely reduced.)   

 

     29...Bg7[];  (forced)   

The computer confirms that Black really had no choice here.   

 

                         [ There are a few other moves, they also lose here:    

                           **********************************************************    

                           Probably a little worse  (</=)  was:  
                           A.) RR  29...Nf6!?30.gxf6 Kf7[]31.Qxh7+,  "+/-"   
                           when White has an obviously winning attack.    
                          (Fritz shows an edge of almost 20 points!)   

                           B.) </=  29...Ng7?30.Qf7+ Kh8 31.Qxf8+! Rxf832.Rxf8#.   

                           C.) </=  29...Nc7?30.Rg1! h5[]31.g6!,  "+/-"   
                                 Again, its a winning attack.   

                           D.) </=  29...Be7?30.Qf7+ Kh831.Qxe7,  "+/-"   
                                 Fritz is showing mate in around 15 moves - from here. ]   

 

     30.Qf7+ Kh8;  31.gxh6,   

Now White is (once more) threatening mates ... because of the powerful White Pawn on the h6-square.   

 

Now - according to the engines - the play of  31...Qg2[];  was forced, (but loses to 32.Rg1. "+/-").   

     31...Qe4+!?;   

Practically speaking, this is about as good as anything else. 

 

     [  RR  31...Bxh6!?32.Bxh6 Qe4+33.Ka1 Qxc434.Qf8+ Qg835.Qxg8+ Kxg836.Rf8#. ]   

 

     32.Ka1 Qg6;  33.hxg7+ Qxg7;  34.Qe6!,  "+/-"   

Black Resigns.   

An entertaining chess game.  

 

   Copyright (c) A.J. Goldsby, 2012. All rights reserved.   

 

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                  The analysis for this page was prepared with the excellent programChessBase 10.0(My primary engines are Fritz 12, Fritz 13, and Houdini 1.5.)  

                  The HTML was polished with several different tools and programs, (mostly FP)  ...  the text was checked for spelling with MS Word.       


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  This page was first generated on: October 13th, 2012.  (Final format completed / posted on Sunday / October 14th, 2012.)  
 
This game was last edited, altered or saved on:  May 10, 2014 06:02 AM