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A.J.'s TS; Game # 12

Technically, this is not a game, just a partial fragment. However, since this part of my website is dedicated to the study of tactics, I do not feel that this is out of line with the overall aim of this section of my website. 

  Any Player - A.O. Player  
  "Jacob's home analysis."  
  Pensacola, FL / 11,01,2007.  

tac-schl12_medal.gif, 02 KB


  (Tactical School, Game # 12.)  

The following analysis must be ... one of the most amazing tactical sequences that I have ever seen. 

tac-sch_gm12_pos01.gif, 08 KB

  2r3k1/pb3pb1/1p1qp1p1/n5N1/3P4/3Q3R/PB3PP1/4R1K1 w  


From the British magazine, "Chess."  (December, 2006.) 
The column is: < Find The Winning Moves, > 
(Page # 30, and Problem # 22); by IM J. Aagard. 


The best - and the most accurate.   

     [ I tried the capture on e6 first, but that did not quite work ... 
       (But it apparently still wins. Although - I must confess - 
        that I did not find the best line when we were analyzing this  
        position at chess club).   

        (</=) 1.Rxe6! Qd5!;  The best defense.  

             (Simply taking fails badly: </= 1...fxe6?;  2.Qxg6! Qe7!?;   
                3.Rh8+! Kxh8;  4.Qh7#.)  

       2.Rg3! fxe63.Qxg6 Qf5 4.Qxe6+ Qxe65.Nxe6,  "+/="  
       White wins back the piece with a considerable advantage ...   
       or so says Junior 10.0. ]   


 1...Bxh8[]; (100% best.)   
This is completely forced.  

     [ Of course not: </= 1...Kxh8??;  2.Nxf7+, etc. ]   


The best move ... it also contains a dual threat. 
(A mate in two ... plus another very sneaky idea ... that I completely missed at the first go-round.) 

     [ Instead, after the moves: </= 2.Rxe6!? Qd5!;  "-/+"  White is - surprisingly - lost. ]  


 2...Bg7[];  (Forced or "box.")  
Black treads a very fine line ... many times he only has one move that avoids disaster.   

     [ But not </=  2...Kg7?3.d5+!,  and White is winning.  


       </= 2...Rc7?3.Qh7+ Kf8 4.Qxh8+ Ke75.Qg8, "+/-" ]   


Absolutely the best move.   

     [ Tempting would be the try of: </= 3.d5!?, but after the correct reply   
        of 3...e6-e5!; "/+"  White's attack is stymied. ]   


 3...Rc5[]; ('!')   (Forced?)   
This looks suicidal ... but everything else ... loses by force!   

     [ Naturally not: </= 3...Qd5??;  4.Qh7#. ]   


Naturally, White jumps at the opportunity to get his Rook back.   


tac-sch_gm12_pos02.gif, 08 KB

  6k1/pb3pb1/1p1qp1p1/n1P3N1/8/B6Q/P4PP1/4R1K1 b  


The White Pawn - that was on d4 in the starting position - now begins an incredible odyssey.  


     [ Also possible was: 4.Qh7+!?,  (and this will probably transpose back to the main line). ]  


 4...Qe7[];  (Really - '!')  
Once more, Black has few good choices.  
{Note the pin on the diagonal ... it works both ways!}  


tac-sch_gm12_pos03.gif, 08 KB

  6k1/pb2qpb1/1p2p1p1/n1P3N1/8/B6Q/P4PP1/4R1K1 w  


Here however, it appears that Black might actually be holding. How does White pursue his assault ... or has the attack ground to a halt? 

     [ </=  4...bxc5?;  5.Qh7+ Kf8;  6.Bb2!, "+/-" ]  


 5.Rxe6!!,  (YIKES!!!!!)  
Simply smashing ... and in my mind, completely unexpected!   

     [ White can also win with: (</=)  5.Qh7+ Kf8;  6.Re3!, "+/-"  but the text is far prettier. ]   


 5...fxe6[];  (Again - 100% forced.)  
I hate to sound like the proverbial "broken record," but Black has no choice at all here. 

     [ Instead, after the moves:  
       </= 5...Qxg5?;  (Maybe even - '??')  6.Re8+ Bf8;  7.c6, "+/-"  {Dg?}   
       Black should tender a resignation ... unless the second player   
       prefers to play "suicide chess." (Fritz is showing a mate in 10!) ]  


 6.Qh7+! Kf8;  7.Qxg6! Nc4!?;  (Box?)   
"There is nothing else."  - Jacob Aagard  
(This is not entirely correct.)   


     [ The computer shows the following line ... which is simply amazing ...  
        ... to say the least!   

       >/=  7...Be48.cxb6!! Bxg69.Bxe7+ Kxe710.bxa7!,  "+/-"  
       Strangely, Black is helpless to stop the passed pawn on a7.   
       (However, White has no immediate mate from the current position.)  


  Analysis Diagram  

tac-sch_gm12_analysis-diag.gif, 09 KB

  8/P3k1b1/4p1b1/n5N1/8/8/P4PP1/6K1 b  


       Who would have guessed ... that from the starting position, that this Pawn - 
       that began on the d4 square - would end up deciding the game on the 
       unlikely a7-square?!?!?  


       Also, the following continuation was more than worthy of a look:   
       (</=) 7...Kg8!?8.cxb6!! Qxa3!?; 
       Actually, this is not the correct play for Black, but the refutation of this   
       move is a lot of fun.  

            (Or  >/= 8...Qxg5;  9.Qxg5 Kh7;  10.bxa7,  "+/-" and White wins.)  

       9.Qe8+ Qf8[];  This is forced.   

            (</= 9...Bf8?!;  10.Qf7+ Kh8;  11.Qh7#.)   

       10.Qxe6+ Kh8;  11.Qg6!,   
       Simply astounding, with all these pieces on the board, Black is unable to   
       adequately guard the h7-square. (Of course not 11.Qh3+!?, Bh6!;  "/+")  

            (Or (</=) 11.bxa7!? Qf6; "~")   

       11...Be4;  12.Qxe4 Qg8;  13.Qh4+ Bh6;  14.Qxh6+,  "+/-"   
        and mate next move.  


       Of no help (to Black) is:   </=  7...Nc6?8.cxb6! Ne5 9.Qxe6 Bf6;   
10.Qxf6+ Kg8 11.Bxe7,  "+/-"
  {D?}  and mate in two moves. ]   


 8.c6!!,  SURPRISE!!!!!   

     [ Tempting was: 8.Nxe6+!? Kg8;  (etc).  
       However, the text move is much superior to this. ]  


 8...Nxa3[];  {"BOX!!!"}   
Once more, Black has no choice.   

     [ </= 8...Qxa3??;  9.Qf7#. ]   


 9.cxb7,  ('!')     
The best move.   

     [ Also possible was: 9.Nh7+!? (A simple transposition?) ]   


Once more ... this is completely forced for Black. 


tac-sch_gm12_pos04.gif, 08 KB

  5k2/pq4b1/1p2p1Q1/6N1/8/n7/P4PP1/6K1 w  


However, Black seems to have fended off the worst ... at least, for the present moment.  

     [ </= 9...Qc7?;  10.b8Q+! Qxb8;  11.Qf7#. ]   


"Even this move can be hard to spot."  - Jacob Aagard   

     [ White could also try: </= 10.Nxe6+ Kg8;  11.Qe8+ Kh7 12.f4,  "~"  
       ("+/=")  with some pressure. ]   


 10...Ke7[];  (No choice ...)   
This is forced ... unless Black enjoys getting checkmated.  

     [ Black commits seppuku with:  </= 10...Kg8?!; 11.Nf6+ Kf8;  
       (It no longer matters.)   

            (Or if: 11...Kh8; then 12.Qh7# .)   

        12.Qe8#. ]  


 11.Qxg7+ Kd6;  12.Qxb7,  "+/-"  
Black can (now) resign with a clear conscience, he is a Queen down. 

tac-sch_gm12_pos05.gif, 08 KB

  8/pQ5N/1p1kp3/8/8/n7/P4PP1/6K1 b  


The bulk of this analysis was done with the assistance of the new program, Fritz 10. 
  - A.J. Goldsby I, Jan. 12, 2007.   


  Copyright (c) A.J. Goldsby, 2007. All rights reserved.   


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