Original Problems, Julia’s Fairies – 2013 (I): January – April
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No.227 – h#5 by Daniel Novomesky – A good demonstration of power of DG in combination with the Royal DG! (JV)
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.
Double Grasshopper(DG): Makes a Grasshopper move without capturing, then a 2nd Grasshopper move.
No.227 Daniel Novomesky
b) Twin Shift a1 b1
c) Twin Shift a1 b3
d) Twin Shift a1 c5
Royal Double Grasshopper b4
Double Grasshoppers: b3, d4, c2
Solutions: (click to show/hide)
a) 1.Kd2-c3+ rDGb4-d5 2.Kc3-b2 DGd4-c3 3.Kb2-a1 rDGd5-c4 4.DGc2-d4 DGc3-e3 5.DGd4-b2 DGb3-d3#
b) 1.Ke2-f3 rDGc4-f5 2.DGd2-f4 DGc3-e3+ 3.Kf3-g2 DGe4-g1 4.Kg2-h1 DGg1-f2 5.DGf4-g2 DGf2-f4#
c) 1.Ke4-d5+ rDGc6-c3 2.Kd5-c6 DGe6-d6 3.Kc6-b7 DGc5-c4 4.Kb7-a8 rDGc3-c7 5.DGd4-b7 rDGc7-c5#
d) 1.Kf6-g6 rDGd8-d5 2.DGe6-g8 rDGd5-d6 3.DGg8-g7 DGd7-f5 4.Kg6-h7 DGf8-f6+ 5.Kh7-h8 DGf6-e6#
A hint for the WinChloe users: WinChloe seems to allow by default null-moves (i.e. moves which do not modify the position), while Popeye does not. One should add the condition “Coups nuls interdits” (moves which do not modify the position are forbidden) in WinChloe, otherwise it finds two cooks in (b) involving such null-moves.