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Can Black win this position?


  • 15 months ago · Quote · #21

    Irontiger

    The position of #12 (diagram) is easy to draw with following the principles :

    -the king stays on f1/f2

    -the bishop must be on or have control of f4.

    When the rook goes on the f file, the bishop blocks the check ; when it is on the 1st/2nd rank the king is on the other one and you just shuffle the bishop. For instance :



  • 15 months ago · Quote · #22

    yourChess

    I do not think there is a variation that would win because the white king is glued to two squares that can not be taken away.

  • 15 months ago · Quote · #23

    caveatcanis

    @Irontiger 17. Kf2? Ra2+ 18. Kf1 Ra3 19. Kf2 Rf3+! 20. Kxf3 Kg1 wins for Black.

    That's how Black won in the analysis that I gave in my first post.

    17. Be3 sidesteps this trap.

  • 15 months ago · Quote · #24

    GSHAPIROY

    What does this exactly mean????Frown

  • 15 months ago · Quote · #25

    Remellion

    @GSHAPIROY: Highly recommend studying simpler endgames first like K+P. NimzoRoy's blog is a good start. This one... it's a real doozy.

    I wouldn't say I solved the first one, just stumbled around and missed all the key ideas by a hair. To think the g3 pawn loses for white! OK, now for the next challenge...

    This, I guess? Only bit I'm not sure about is the pure R v B endgame, but white should be able to draw. Practical chances are very high that both sides would make mistakes in a real game, though.

  • 15 months ago · Quote · #26

    caveatcanis

    @Remellion Congratulations - you solved it!

  • 15 months ago · Quote · #27

    caveatcanis

    The full winning line from the original position is:



  • 15 months ago · Quote · #28

    Irontiger

    I don't know why, but looking at the position now, it reminds me of some famous endgame (by Fischer maybe ?). White's previous move was 1.Kg2-f3 ? which is a mistake because it allows the Black king to go to g4 (which is not the case after 1.Kg2-h3 !).

    May I ask the source ?

  • 15 months ago · Quote · #29

    caveatcanis

    @Irontiger Spot on with the Fischer reference.

    The position is a might-have-been from game 11 of the Fischer-Reshevsky match (game 28 of My 60 Memorable Games). The faulty analysis is from that book.

  • 15 months ago · Quote · #30

    Remellion

    And that is a pretty winning line. The king marches all the way around the pawns along the edge of the board! Just to force the white king to the d-file.


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