Good old times 9

1.f7! zz
1...Bf8 2.Qa1+ Kxa1(Qd1) 3.Ra5+ Ba3+ 4.Rxa3(Bf8)+ Bxa3#
1...Bg7 2.Rb2+ Ka1 3.Ra2+ Kxa2(Rh1) 4.Qb2+ Bxb2(Qd1)#
1...Bxg5(g2) 2.Rxg5(Bf8) th. 3.Qb3+ Ka1 4.Qa3+ Bxa3(Qd1)#
    2...Bh6 3.f8R Bg7 4.Qb2+ Bxb2(Qd1)#

Only nine pieces, only one black bishop, yet a lot of Circe play:
1st variation - Circe block on d1, rebirth of bB,
2nd variation - Circe block on d1,
3rd variation - finest one as after 3.f8R bB cannot capture twice bacuase of Circe self-check.

1.Bd2! th. 2.Qg1+ Qxg1(Qd1) 3.Qxg1(Qd8)+ Qxf6(f2)#
1...Qxg2(Sb1) 2.Qc5+ bxc5(Qd1) 3.Bc1+ Qxd5(d2)#
1...Se7 2.Qxb2(Bf8)+ axb2(Qd1) 3.Be1+ Sxd5(d2)#
1...Sd8! 2.Qc3+ Bxc3(Qd1) 3.b5+ Bb4#

Very Circe threat uses rebirth of three pieces in total: QP-Q. Two variations then allow White to create battery on d-file without loss of tempo, leading to mates with forced capture of pd5. Additional variation uses Circe too as checkmating Bb4 is tabu due to Circe self-check.

1.Qf3! zz
1...h1Q+ 2.Qxh1(Qd8)+ Kxg3(Sg1) 3.exd8Q gxh6 4.Qxd7 B~#
1...h1R+ 2.Qxh1(Ra8)+ Kxg3(Sg1) 3.bxa8R th. 4.Ra3+ Bd3# gxh6 4.Ra4 B~#
1...h1B 2.Qxh1(Bc8)+ Kxg3(Sg1) 3.bxc8B gxh6 4.Bxd7 B~#
1...h1S 2.Qxh1(Sg8)+ Kxg3(Sg1) 3.fxg8S gxh6 4.Sf6 B~#

Delayed Babson by one of theme masters, although White promotions are made by three different pawns (imbalance by default). Also the second white move is the same in all variations. In the end the main problem of White is taking care of g4.

1.c8S! zz
1...g1Q 2.Bc7 Qh1/Qg2/Qh2/Qxf2 3.Bxh1(Qd8)/Bxg2(Qd8)/Sxh2(Qd8)/Rxf2(Qd8) Sd~#
1...g1R 2.Bb8 Rh1/Rg2 3.Bxh1(Ra8)/Bxg2(Ra8) Sd~#
1...g1B 2.Bg7 Bh2/Bxf2 3.Sxh2(Bf8)/Rxf2(Bf8) Sd~#
1...g1S 2.Bf6 Se2/Sf3/Sh3 3.Rxe2(Sg8)/Rxf3(Sg8)/Rxh3(Sg8) Sd~#

Battery prepared to checkmate White king hints it is only necessary to remove pg2. Wrong hint in this case! Not only the pawn can promote, moreover the capture of promoted pawn leads only to the rebirth. What then? Black king is placed on a3, usual square for arranging multiple Circe selfguards of White pieces. And really, the black promotee is incarcerated after capture. Four times, with four different second moves by white bishop.

1.cxb7! th. 2.b8R!
    th. 3.Rb5+ Bc5+ 4.Rxc5(Bf8)+ Bxc5(Ra1)# and
    3.Rc8 th. 4.Rc5+ Bxc5(Ra1)#
1...fxg2(Sb1) 2.Sd4+ Kxf4(f2) 3.b8Q+ Bd6+ 4.Qxd6(Bf8)+ Bxd6(Qd1)#
1...fxe2(Sb1) 2.Se3+ Kxf4(f2) 3.b8B+ Bd6+ 4.Bxd6(Bf8)+ Bxd6(Bc1)#
1...f2 2.b8S th. 3.Sc6 th. 4.Se7+ Bxe7(Sg1)#

I like the common defence motive of all three pawn defences: as the threat is quiet, Black threats to promote to B or S in the 2nd move, forcing White to parry final check by Circe RxB or RxS. White promotes to all four pieces on b8.

1.f8B! zz
1...Qxa7(a2), Qb6, Qc4 2.Qc1+ Qxd4(d2) 3.Qf1+ Qf2#
1...Qd6! 2.Bh2+ Ke3 3.Bh6+ Qf4#
1...Qxa5(Ra1), Qb5 2.Qf5+ Qxf5(Qd1) 3.Qg4+ Qxg4(Qd1)#
1...Qxe6(e2)! 2.e3+ Qxe3(e2) 3.Bh2+ Qg3#
1...Qc6, Qxb7(b2) 2.Qf2+ Qf3 3.Rae5 Qxf2#
1...Qe2 2.Qd2+ Qxd2(Qd1)/Qe3 3.Qf1+/Qh2+ Qf2/Qg3#

Black minimal. And actually very rich Circe play. Any queen move approaching d4 allows 2.Qc1+, but there is a correction approaching d7 as well. Further, any move approaching f5 allows 2.Qf5+, but correction cuts d1-g4 line. Great construction with Circe mates.