Definitions: (click to show/hide)
PWC: When a capture is made, the captured unit (except a King) is replaced on the square the capturing unit just leaves. A Pawn is immovable on its 1st rank.
Non-stop Equihopper(NE): Moves along any line over another unit of either colour to a square situated such that the hurdle stands at the mid-point between the Equihopper’s departure and arrival squares. The English (standard) Equihopper cannot pass over an obstruction other than the hurdle when playing along Queen-lines. The non-stop/French Equihopper does not have this restriction.
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No.1136 Georgy Evseev &
Boris Shorokhov
Russia
original – 03.10.2016
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Solutions: (click to show/hide)
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White Ka7 Rh5
Black Kc4 Qa2 Rf5e2 Bc7c6 Sb8d2 Pe6e5a4b4e4f4a3c2 NEb5d5b3d3
h#2 (2+20)
b) Pb4→c3; c) Pb4→d4; d) Pb4→c5
PWC
Non-stop Equihopper b5,d5,b3,d3
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a)
1.NEd5*h5[+wRd5] {(NEb5xh5(Rb5)?)} Rd5*b5[+bNEd5] 2.Kc4*b5[+wRc4] Rc4-c5 #
b) bPb4-->c3
1.NEb5*h5[+wRb5] {(NEb3xh5(Rb3)?)} Rb5*b3[+bNEb5] 2.Kc4*b3[+wRc4] Rc4-b4 #
c) bPb4-->d4
1.NEb3*h5[+wRb3] {(NEd3xh5(Rd3)?)} Rb3*d3[+bNEb3] 2.Kc4*d3[+wRc4] Rc4-c3 #
d) bPb4-->c5
1.NEd3*h5[+wRd3] {(NEd5xh5(Rd5)?)} Rd3*d5[+bNEd3] 2.Kc4*d5[+wRc4] Rc4-d4 # {
(C+ by Popeye 4.75)}
White minimal
Four captures of white rook on first move with cyclic tempo-based antidual choice
Distributed tempo “Rundlauf” of white rook
Black king star with white rook “anti-star”
White rook cross (and rook visits all squares in b3-b5-d5-d3 square). (Authors)
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Cycle in B1 departure squares and W1 arrival squares.
With additional content: tempo dual avoidance, BK star, virtual WR rundlauf, WR cross.
Reminiscent of some of Claude Goumondy’s cyclic helpmates.