Special case of Turton doubling in which piece A (which makes the anti-meta-critical move) is stronger than B (which comes in front).
See also: Turton doubling; Loyd's clearance.
Bakcsi, György
Zoltán, László
The Problemist, 1995
4th HM
1...Rh5
2.Kf3
Qg5
3.Ke4
Qxd5#
1...Qe6
2.Kxg4
Rf6+
3.Kh5
Rh6#
Seider, Shlomo
Munich club-150 JT, 1987
1.Kf1
Qc7
2.Kg1
Bd6
3.Qf1
Bh2#
1.Qd3
Bxe7
2.Kd2
Qd6
3.Kxc3
Qxb4#
FEN: 2K5/4p3/8/PPBp4/1pqPn1p1/2P1Pp2/1pb2bpQ/4k2n