(I) 1.Qd4 cxd4 [wrK=rQ] 2.rQd1 LEd2 3.Gd5 + LExd5 [wrQ=rG] # - not 4.rGxd5(bK= brLE)?? - self-check!! (II)1.Qb3 cxb3 [wrK=rQ] 2.rQg3 LEe3 3.Ga3 + LExa3 [wrQ=rG] # - not 4.rGxa3(bK= brLE)?? - self-check!! Thematic complex ---------------- Realization of the KoBul fairy condition with activity of the both KoBul Kings: - Active phase of the white KoBul King after sacrifice of the white Q - transformation to the Royal Q, which moves to the mating positions. - Passive phase of the white Kobul King on the mating move - transformation to the Royal G, which has no possible moves to avoid the mate. - Passive phase of the black KoBul King - the only possible defense of the white King (in the Royal G phase) - capture of the mating piece (bLE) - falls because it transforms the black King into Royal LE piece giving the self-check. Double Ambush - black (Le) + white (rQ); Bristol theme - wG opens lines for the second moves of bLE; ODT; Model mates.