Original Problems, Julia’s Fairies – 2014 (I): January – April
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No.524 by Michael Grushko – A four-men typical for Israeli maestro! (JV)
Circe Parrain: After a capture, the captured piece is reborn only after another piece of its own side has moved. The line between capturing square and rebirth square is parallel with and of same direction and length as the move of this other piece. Pawns can be reborn on 1st and 8th rank. From their own base rank, they may move one-step; if reborn on the promotion rank, the Pawn at once promotes, the promotion piece being determined by the Pawn side.
Einstein chess: All units (Ks excluded) change their type when they move, according to a precise pattern. For non-capture moves: Q>R, R>B, B>S, S>P, P remains P. For capture-moves: R>Q, B>R, S>B, P>S, Q remains Q.
KoBul Kings: When a piece (not a pawn) of his own side is captured, a King transforms into a Royal piece of the same type as the captured one. When the King is in the form of any Royal piece and there is a capture of one of the pawns of his own side, he becomes a normal King again. Captures are illegal if their result is self-check because of the transformation of the Кings according to KoBul rules. Castling is allowed only if the KoBul King is on his initial square in the form of a normal King and if he has not already moved; however he may already have been transformed. In the case of capture by a King in AntiCirce he is reborn on his initial square and may castle. If the capture is by a King which is in the form of some Royal piece, he is reborn on the initial square of that piece.
No.524 Michael Grushko
hs#6 b) black Se4 (2+2)
Solutions: (click to show/hide)
a) 1.c5-c6 Be4xc6=R+ 2.Kc8-d7[+wPd5] e5-e4 3.d5xc6=S e4-e3[+bRc5] 4.Kd7-e6 Rc5xc6=Q[e6=rS]+ 5.rSe6-f8=P[+wSd8] e3-e2 6.Sd8xc6=B e2-e1[+bQc5] #
b) 1.Kc8-d8 Se4xc5=B 2.Kd8-c7[+wPb4] Bc5xb4=R 3.Kc7-d6[+wPc3] Rb4-d4=B 4.c3xd4=S e5xd4=S[d6=rS][+bBc3] 5.rSd6-e4=P[+wSe2] Sd4-e6=P 6.Se2xc3=B e6-e5[+bBc2] #
(C+ by Popeye 4.65)