Originals from Die Schwalbe June 2000

1...Sxd2, c3, Re4, Rf4
2.Qxd2#, Qa4#, Sf3#, Rxf4#

1.Qf3! th. 2.Qxf6#
1...Sxd2, c3, Re4, Rf4
2.Rxd2#, Qd3#, Qxe4#, Qxf4#

Z-24-48, it is pure change of 4 mates between set play and solution.

1.Qa4? th. 2.e8~#, 1...Se4!
1.Qd7? th. 2.e8~#, 1...Sf5!

1.Qg8! th. 2.e8~#
1...Sg3 defends 2.Sg2#
1...hxg4, Bxc3 2.Qxg4#, hxg3#

Guarding of g4 by wQ prepares mate for defence of Sg2, which commits error of Rc3-h3 hidden opening - anti-Lewmann. It also opens Rg1-g4 line. But refutations close queen lines to g4 in aticipation of Sg2 closing this line again - Barulin defence, theme A. Book example of line themes.

a) 1.Kf3 Sf2 2.Bf5 Sxh3 3.Ke4 Sg5#

b) 1.Kf5 Sc3 2.Qf3 Sb5 3.Ke4 Sd6#

c) 1.Kd3 Kxg3 2.Rxe3+ Kg4 3.Ke4 Sf2#

Strong theme: bK 3 times opens line for his linemover and then returns to initial square.

1.Bc3 Rxd4+ 2.Kxd4 Kf2 3.Bc4 e3#

1.d6 Bxd5+ 2.Kxd5 Rxb4 3.Sc6 e4#

Fine analogy, and what is important for me, less skinny impression than I usually have seeing Janevski's h#3. Although the analogy isn't perfect and Rxb4 is not very pleasant capture, I like this helpmate.

a) 1.Re3 Sf3+ 2.Ke4+ Rd5 3.Sf4 Sd2#

b) 1.Se3 Sd2+ 2.Kd4+ Bd5 3.Rc3 Sf3#

Good echo diagonal-orthogonal is finished by knight battery mates using two opposite moves Sf3-d2 and Sd2-f3. Pleasant construction.

a) 1.Bd3 Bc7 2.Rc6 exd3 3.Rc2 Re1#

b) 1.Bxd4 Re6 2.Bf5 Bxd4 3.Bh3 Bf2#

Well, there is analogy in W1, B2, B3 moves, but let me say, that white pieces making 1st white move aren't actively participating on mate. One could have accepted in problem with 2 solutions, but I'm suspecting it is possible to improve the scheme to have them active with twin by moving bK.

a) 1.Rb1 Bf1 2.Kc8 Bxg2 3.Rb8 Bf1 4.Bb7 Bh3#

b) 1.Ra1 Be1 2.Ra8 Bxg3+ 3.Ka7 Be1 4.Bb8 Bf2#

White bishop clears the way for his black colleague and must wait for him before setting the mate. In both positions. Very good construction.

a) 1.Rh4 Qc6 2.bxc6 b7 3.Sb6 b8S 4.Ra4 Sxc6#

b) 1.Kxb6 Qxe3+ 2.Kc7 Qxf2 3.Kb8 Qh4 4.Ba7 Qd8#

Synthesis of two solutions that have very little common points, but that both have good value standing lonely. Thus they make valuable pair together - thanks to "minimal" twinning. Note that the reason why in a) the solution of b) doesn't work is the same why a) solution work - line h6-a6 isn't closed. Good.

1.PAh3! th. 2.Re6+ Kf5 3.Sg3+ Kf4 4.Re4# or 4.Sd3#
1...VAxh3 2.Kxg5! th. 3.Re6#
   2...PAf4+ 3.Kg4! th. 4.Re6#
      3...Bxd5 4.Sd3#
1...PAa3 2.Kg4! th. 3.Re6#
   2...VAf4+ 3.Kxg5! th. 4.Re6#
      3...Rxd5 4.Sc6#
Two variations with very analogical play. Error of defence (unguarding of d3 or c6) is exploited by white only on 4th move. 2nd and 3rd white moves are reversed, provoking check on 2nd black move and giving him the chance to defend Re6 threat, but also neccessity of blocking d5 on the 3rd black move. Typical Rehm? Yes, in the meaning of excellent fairy moremover. It doesn't depend on the type - this one is strategical.

1...Qa1 2.Bxd2 Rxd1 3.Bxc2 Be4#

1...Qa8 2.Rxc2 Bxe4 3.Rxd2 Rd1#

Full use of kamikaze condition in two solutions in echo diagonal-orthogonal. They are highlighted by queen corner moves setting double masked batteries and by some reciprocal changes of functions.

1.Rxc8 MAe4 2.Kf5 VAd3#

1.Rxe2 LEe8 2.Kh5 MAf7#

Good analogy for limited material. Black captures white pieces attacking the squares to which bK goes in B2. Meanwhile white constructs similar mating pictures using remaining leo/vao as rear piece of chinese mating pair. VAd3# mate isn't antibattery - I believe it can be improved...