Definitions: (click to show/hide)
Empress(EM): R+S
VAO(VA): Chinese piece operating along Bishop lines: moves as Bishop, but captures only by hopping over a hurdle to any square beyond.
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.
Super-Circe: When captured, a piece is reborn on any free field on the chess board without causing self-check or selfmate. Possible is also removal of captured piece from the board. The Pawns (white, black, neutrals, half- neutrals) can be reborn on the first or eight row also. When reborn on the first row (for Black) or on the eight row (for White) the promotion is obligatory. When reborn on the first row (for White) or on the eight row (for Black) the Pawns are immovable.
No.1172 Kostěj Šoulivý
Czech Republic
original – 24.12.2016
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Solutions: (click to show/hide)
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white EMh5
black Kd4
neutral VAe1 Gc3
h#2 b) VAe1→a7 (1+1+2)
Super-Circe
Empress h5
VAO e1
Grasshopper c3
(no w.K)
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a)
1.nVAe1-h4 EMh5*h4[+nVAe5] + 2.Kd4*c3[+nGf6] EMh4-d4 #
1.nVAe1-g3 EMh5*g3[+nVAb2] + 2.nGc3-a1 EMg3-c3 #
1.nGc3-e5 EMh5*e5[+nGg1] 2.nVAe1-f2 EMe5-e3 #
1.Kd4*c3[+nGb4] nVAe1*b4[+nGe7] 2.Kc3*b4[+nVAd6] EMh5-c5 #
b) nVAe1-->a7
1.nGc3-e5 EMh5*e5[+nGf2] 2.nVAa7*f2[+nGg1] EMe5-e3 #
1.Kd4*c3[+nGd4] nVAa7-b6 2.Kc3*d4[+nGa7] EMh5-c5 #
1.Kd4*c3[+nGg7] nVAa7-d4 + 2.Kc3*d4[+nVAf6] EMh5-e5 #
1.nVAa7-c5 EMh5*c5[+nVAb2] + 2.nGc3-a1 EMc5-c3 # {
(C+ by Popeye 4.75)}
Fourfold echo (which is in my opinion record achievement with this material) in both positions. Some solutions are quite similar (especially the third in A and the second in B), but I would like to publish the twin, as in A there is fourfold echo without any repetition of moves (even all capturing parts of single moves are different) and in B there is echo with black king mated from all four directions. (Author)
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