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Subject: M.Liburkin,1934 === Test Position

Author: José Antônio Fabiano Mendes

Date: 14:57:15 05/15/02


      M.Liburkin,1934 === Test Position
      [D]kn3n2/8/1p1K4/1P5R/8/8/8/8 w
      Source ===>  http://members.aol.com/_ht_a/brigosling/psitn060.htm
      ===> 1. Rh8! Nfd7
1...Ng6? 2. Rg8 Nf4 3. Rf8 Ng6 4. Rf7+-

      ===> 2. Kc7 Ka7
No choice here, other moves lead to Black being mated.

      ===> 3. Re8 ...
3. Rd8? Nc5! 4. Rxb8 Ne6+ 5. Kc8 Nc5=.White can never free his Rook.
3. Rh1? Nc5! 4. Ra1+ Nca6+ 5. bxa6 b5!=

      ===> 3... Nf6!

3...Nc5? loses because of 4. Re7 Nd3 5. Kc8+ Ka8 6. Rb7 Nc5 7. Rxb6 Nbd7 8. Rc6
Ka7 9. Kc7 Ka8 10. Rd6 Ka7 11. Rh6 Ka8 12.Rh3+-

     ===> 4. Rxb8 Ne8+

4...Nd5+? 5. Kc8 Ne7+ 6. Kd7 Kxb8 7. Kxe7 and White wins the pawn ending.

     ===> 5. Kd7 ...

5. Kc8? Nd6+ 6. Kc7 Nxb5+ =

     ===> 5...Nc7!

5...Kxb8? 6. Kxe8 and again the pawn ending is lost for Black.. How can White
prevent the loss of the b-pawn? He finds a remarkable move!

     ===> 6. Ra8+! ...         The only move that wins.

     ===> 6...Nxa8
Other moves end with the same result: 6...Kb7 7. Ra7+ wins.
                                      6...Kxa8 7. Kxc7 Ka7 8. Kc6+-

     ===> 7. Kc8 Nc7 8. Kxc7 Ka8 9. Kxb6    and White Wins.



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