Petko A. Petkov (Bulgaria)
Original Problems, Julia’s Fairies – 2013 (III): September- December
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No.375 by Petko A. Petkov – My lovely “horses” actively play in this wonderful birthday gift! Complicated strategy in creation of direct and indirect anti-batteries.
I’m very touched and grateful to Petko! (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.
Nightrider(N): A Rider along a straight line on squares lying a Knight`s move away from each other.
PAO(PA): Moves as Rook, but captures only by hopping over a hurdle to any square beyond.
Take & Make: Having captured, a unit must immediately, as part of its move, play a non-capturing move in imitation of the captured unit from the capture-square. If no such move is available, the capture is illegal. Promotion by capture occurs only when a pawn arrives on the promotion rank as the result of a take&make move. Checks are as in normal chess: after the notional capture of the checked K, the checking unit does not move away from the K’s square.
No.376 Petko A. Petkov
Dedicated to Julia Vysotska at her birthday 16.09.2013!
hs#2,5 2 solutions (8+5)
Take & Make
Nightriders: d3, e7, h6
Grasshoppers: d6, e6
PAOs: a1, b1, h5
Solutions: (click to show/hide)
I. 1…Nd4 2.Gxd4(Gb3) Nh1 3.Nxh1(Nf5)+ Kxe6(Ka2)‡
II. 1…Nc6 2.Gxc6(Gb4) Nf7 3.Nxf7(Ng5)+ Kxd6(Ka3)‡
(C+ by Popeye 4.63 and WinChloe 3.24)
The main idea in this problem is super-activity of the three Nightriders and of course – the difficulty of solutions. (Author)