Chameleons: Bd3,Sd6,Qg5,Sg6 ======================= a) 1.cBd3-c4=cR cQg5-g4=cS 2.cSd6-e4=cB cSg4-f2=cB # (not 1.cSc4=cB? cQg4=CS 2.cBd4=cR cSf2=cB#? 3.cRe3=cQ!!) b) 1.cSd6-c4=cB cSg6-f4=cB 2.cBd3-e4=cR cBf4-d2=cR # (not 1.cBc4=cR? cSf4=cB 2.cSd4=cB cBd2=CR#? 3.cBd3=cR!!) Double black self-blocks on c4/e4 realized by the black Chameleons with interchange of functions between them and thematic tries on the first black move; specific creation of batteries with forward piece Chameleon and rear piece Grasshopper. Interchange of functions between white Chameleons. Meredith.