No.896 (SE)

No.896
Stephen Emmerson (Англия)

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Оригинальные задачи, Julia’s Fairies – 2015 (II): июль – декабрь

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roses-100No.896 Stephen Emmerson – Нестандартная задача, 2 в 1, с парадоксальным содержанием и экзотическими фигурами! Сердечно благодарю за посвящение! (JV)


Определения:

Hurdle color changing hopper: Хоппер, меняющий в результате хода цвет своего препятствия (исключая короля).

Grasshopper(G): Ходит по линиям ферзя, только перешагивая через другую фигуру любого цвета, на поле, следующее сразу за этой фигурой. Взятие может быть только на поле прибытия, фигура-препятствие остается незатронутой.

Sparrow(SW): Moves like a Grasshopper ((0,1)+(1,1)Hopper , but deflects 135° either way on passing over the hurdle. The arrival square is adjacent to the hurdle.

Moose(M): Moves like a Grasshopper ((0,1)+(1,1)Hopper , but deflects 45° either way on passing over the hurdle. The arrival square is adjacent to the hurdle.

Eagle(EA): Moves like a Grasshopper ((0,1)+(1,1)Hopper), but deflects 90° either way on passing over the hurdle. The arrival square is adjacent to the hurdle.


No.896 Stephen Emmerson
England

original – 16.09.2015
Happy birthday Julia Vysotska!

Diagram

black kd4 ke4 black HurdleColourChanging gd3 swb2 ead2 mc1 eag4 ge3 mg3 swf2

(LEFT)        h#4    (0+5)      (RIGHT)
Hurdle color changing hoppers:
Grasshopper d3, e3
Sparrow b2, f2
Moose c1, g3
Eagle d2, g4

Solution J (Left):

Solution V (Right):


7 комментариев: No.896 (SE)

  1. shankar ram пишет:

    A picture problem -“JV”!
    To get 2 accurate h#4 sequences with ideal mates is amazing.
    Usually, the content in picture problems is just so-so.
    Fine achievement by Stephen!
    Also interesting is that the py2web animation works, without disturbing the other half!

    • shankar ram пишет:

      Black starts by changing one of the hoppers to W.
      Then uses his 3 remaining moves to walk his K to the board edge.
      W uses his 4 moves to change the colour of the other 3 hoppers… and mate!
      In the final position, the mighty sparrow guards 3 squares, while the moose, eagle and grasshopper guard 1 each!

    • JuliaJulia пишет:

      “Also interesting is that the py2web animation works, without disturbing the other half!
      It is amazing, that the both “halves” of the problem don’t need to cross the “border-line” – the play in the both solutions takes exactly the half of the board! Animation py2web shows just what it sees in the solutions. It doesn’t know there’re two problems, it sees only one, with 8×8 board, with two solutions, and it doesn’t mind two Kings on the board. 🙂 I like how it looks!

  2. JuliaJulia пишет:

    I’ve just updated the presentation of this problem to a new one with Stephen’s help. I should say the program code Stephen has sent me to make it work impressed me even more than a problem itself. It is something to learn from..
    I’ve got two gifts in one! Enjoy the visualization with either J or V part!

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