Locust-specific batteries 3

1.Bb7 Se3+ 2.Qg4 Sgf1#

1.Rb3 Sf5+ 2.Qg3 Sgh6#

The first black move blocks square avoiding capture of white locust. Otherwise there is quite standard strategy in the diagonal-orthogonal echo.

a) 1.cxd5 Sf4+ 2.Sf5 Sxg6#

b) 1.Rxe5 Sf5+ 2.Sf4 Se7#

There is prepared "normal" battery with knight as a firing piece. When it opens, black knight selfpins behind, but then the newly created "locust-typical" battery mates from behind. Again diagonal-orthogonal echo.

1.Sfe5 Sd3+ 2.Qb4 Sbc1#

1.Sge5 Sc5+ 2.Qb3 Sba6#

Do you see similarities between the first problem and this one? Still, there is some added strategy here.

1.Gh5! zz
1...Gd4 2.Sg3+ Kd6 3.Sf5+ nLxf5-g4#
1...Gf6 2.Sg5+ Kd6 3.Sf7+ nLxf7-g6#
1...Gb6 2.Sc5+ Kd6 3.Sb7+ nLxb7-a6#
1...b4 2.Sd2+ Kd6 3.Sc4+ nLxc4-c3#
1...a3 2.Sec3+ Kd6 3.Sxb5+ nLxb5-a4#

Double use of locust-typical battery. It is fired in the second white move as a Siers battery, giving flight at d6 and then in the mating black move. Good construction.

1.Kxe2(Sb1) Kh7 2.Kf1 Sa3+ 3.Lxa3-a2(Sg1) Sf3+ 4.Lxf3-g2(Sb1) Sd2+ 5.Lxd2-e2(Sg1) Sh3#

1.Kg2 Sg1 2.Kf1 Sf3+ 3.Lxf3-g2(Sb1) Sa3+ 4.Lxa3-a2(Sg1) Se2+ 5.Lxe2-f2(Sb1) Sc3#

Only one mate here is thematical (Sh3#), but the interconnection between phases is quite strong. The rebirths of knight are skillfully used for the precising order of moves, switching the action from one flank to the other and back.