white ka4 rf7 bh3 sg3 ph6 pf2 pe2
black kb8 sc2 sd2 pg2 ph4
hs#3.5 b) Kb8→g8 (7+5)
Circe Power Transfer
a) 1...Sd2-d3 {display-departure-square} 2.Bh3-c8 Kb8-a8 3.Sg3-f1{display-departure-square} Sc2-b4! 4.Rf7-a7+ Ka8-b8# {
(3...Sd3-b4? 4.Ra7+ Sc2-a1!)}
b) bKb8-->g8
1...Sc2-c1{display-departure-square} 2.Sg3-h1 Kg8-h7 3.Ka4-a3 Sd2-b3!{display-departure-square} 4.Bh3-f5+ Kh7-g8# {
(3...Sc1-b3? 4.Bf5+ Sd2-f1!)
(C+ by Jacobi and WinChloe)}
Circe-power-transfer specific dual avoidance. Function exchange of the bSs (in both play and antidual), and of wB/wR (supporting/leading role in the selfmate finale). BK switchbacks. (Authors)
