(16.04.2013) Комбинация от фееричните условия Circe (White only) и KoBul Kings от Kenneth Solja (Финландия).

a) 1.Be1 Sxf3 2.Kc3 Sxe1(bK=rB) 3. rBxe1(+wSg1)(wK=rS) Sf3#

b) 1.Bxd4(+wSg1)(wK=rS) Se2 2.Kb3 Sxd4(bK=rB)+ 3.rBd1 rSc3#

Echo-mates, wS/ bB duel (Author)

Circe (White only): the captured white pieces reappear on their game-array 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.