No.304 
Luis Miguel Martín (Spain)

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Original Problems, Julia’s Fairies – 2013 (I): January – April

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No.304 by Luis Miguel Martín – Nonstandard anti-battery play!  (JV)


Definitions:

Grasshopper(G): Moves along Q-lines over another unit of either color to the square immediately beyond that unit. A capture may be made on arrival, but the hurdle is not affected.

Rookhopper: As Grasshopper, but moves on Rook lines only.

Bishophopper: As Grasshopper, but moves on Bishop lines only.

Contra Grasshopper (CG): As G, but in reverse: the hurdle must be adjacent to the CG, which may land anywhere on the line beyond.

Contra Rookhopper: (0,1)Contra-Hopper – Plays as  Contra Grasshopper but on Rook lines only.

Contra Bishophopper: (1,1)Contra-Hopper – Plays as  Contra Grasshopper but on Bishop lines only.


No.304 Luis Miguel Martín
Spain
original-22.04.2013
 
304-h#2-lmm
h#2            2 solutions          (4+2+2)
Rookhopper d2
Bishophopper g2
Neutral Contra Rookhopper d6
Neutral Contra Bishophopper c6
 
 
Solutions: (click to show/hide)
 

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seetharaman
seetharaman
April 23, 2013 06:36

Nice Anti batteries! What is Zabunov effect ?

Luis Miguel
Luis Miguel
May 1, 2013 01:51
Reply to  seetharaman

Hi, Seetharaman,
In the final mate positions, neutral contra rookhopper acts as front piece in a phase and as rear piece in the other phase. With this two roles, I think neutral contra rookhopper shows Zabunov effect. The same exchange of roles happens for the other 3 themathic pieces.

But really, I’m not sure of the strict requirements in Zabunov theme:
¿it requires always 3 different pieces A (rear and front) B (rear) and C (front) instead two pieces exchanging roles?
¿it requires only batterie play instead anti-batterie play?
¿it requires rear and front roles in the same phase or also applies throughout all phases?