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Задача 379: Michael Grushko - Fairy (KoBul Kings, Einstein Chess, Circe Parrain)

grushko.jpg(12.04.2014) Помощно-обратен мат с а-ла Форсберг близнаци от Михаел Грушко. Благодаря много на автора за посвещението!





379

     a) 1.Kf7 e3 2.Rf4=B exf4=S(f7=rB) 3.rBc4=rS(+wBc1) Se6=P

4.Bd2=S exd2=S+ 5.rSe3=P(+wSf1) e5 6.Sxd2=B e4(+bSd1)#

     b) 1.Qd4=R exd4=S(g8=rR) 2.rRg6=B(+wRd2) e3

3.rBb1=S exd2=S(b1=rR)+ 4.rRb1-a1=B[+wRc2] Sc4=P

5.Re2=B Sb3=P 6.Bxc4=R b2(+bPc3)#

     c) 1.Sd3=P exd3=S 2.Kh7(+wPe2) Sf4=P 3.Kg6 f3 4.exf3=S e4(+bPf2)

5.Kf5 exf3=S(f5=rS) 6.rSg3=P(+wSg1) Sxg1=B(g3=rS) 7.rSf1=P Bh2=S#


Circe Parrain: The captured units are reborn on a square which depends on the move following the capture (hence a move by a unit of same color, called the godfather unit). The step from the capture square to the rebirth square is given by (is equipollent to) the godfather-move. Rebirth only occurs if the rebirth-square is  empty. Pawns may be reborn anywhere: on the 8th rank they are promoted, on the 1st rank they may only make a single move. If the godfather move is castling, then the rebirth-move is a King move followed by a Rook move.

Einstein chess: every time a piece moves (without capturing), it "loses energy" and transforms itself ("is demoted") into a smaller unit, one step down the ladder from Queen to Rook to Bishop to Knight to Pawn. Every time a piece captures, it gains energy and   transforms itself ("is promoted") into the next bigger unit. Kings do not transform. A capturing Queen-move or a non-capturing   Pawn-move does not lead to any transformation. There are no promotions. So that you can have pawns on the 8-th rank   (where they are stuck). You can also have pawns on the 1st-rank (after a non-capturing Knight move): these pawns can make a single, double  or triple step forward. After a double or triple step,   they can be captured en-passant by an enemy pawn on the 3rd or 4th rank. After a triple step, en-passant capture can take place on two different squares!

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 they result in self-check by the transformed King. 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.

 

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