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retractor problem
References
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retractor problem

heterodox problem
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Learn about this topic in these articles:

  • Position of chess pieces at the beginning of a game
    chess
    / Heterodox problems

    ) In a retractor problem the player given the task begins by taking back a move and replacing it with another move, with the aim of achieving the stipulation, such as mating in three moves. In a maximummer Black must always make the geometrically longest move available.

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    ) In a retractor problem the player given the task begins by taking back a move and replacing it with another move, with the aim of achieving the stipulation, such as mating in three moves. In a maximummer Black must always make the geometrically longest move available.

    Read More