Mates by neutral units 2

a)
1.c8nZ 2.dxc8nN(nZc1)#
1.d8nCA 2.cxd8nGI(nCAd1)#

b)
1.c8nCA 2.dxc8nN(nCAd7)#
1.d8nZ 2.cxd8nGI(nZc7)#

All solutions contain the same idea - double check by promoting pawn and reborn captured piece. Thanks to the change of condition we have here reciprocal change of promotions. Quite skinny form, however, in my opinion.

1.nCa2(R)! th. 2.nCc5(R)#
1...Ka6 2.nCd6(R)#
1...Ka4 2.nCnb4(R)#
1...nCb2(Q) 2.Ra8#

Three similar chameleon mates by double check. Chameleons are especially suitable for the creation of non-reversible moves, just like promoting pawns. Simply, the unit after making the move is no longer the same and thus it often cannot take the move back.

a) 1.nSPf1nB Sc3+ 2.Kd4 nSPh8nB#

b) 1.Ke5 Sd4 2.nSPh1nB nSPb8nB#

c) 1.Kh6 Sg3 2.nSPb1nB nSPf8nB#

Excellent example of the possible flexibility of well chosen fairy elements. Superpawns can easily reach both sides of the board. They have to promote to bishops on the 1st rank to avoid check to wK and on the 8th rank to avoid possibility of running away.

Needless to say, the theme of the Andernach tourney in 1992 were bishop promotions.

Good unity in the play of wS too.

a) 1.Gd1 e8nGI 2.Gc1 dxe8nCA(nGIe1)#

b) 1.nNd4 d8nG 2.nGe5 exd8nR(nGd1)#

c) 1.Kxc6(nNc8) d8nS+ 2.Kd7 exd8nQ(nSb8)#

d) 1.c1nN e8nB 2.nNf7 nBxf7(nNf1)#

4 orthodox and 4 different fairy promotions require 4 different types of fairy pieces on the board. The mating mechanism is already easily recognizable for you - double check by promoting and reborn neutral units.

a) 1.a1nLE+ nLEb1 2.e1nN nLEf5#

b) 1.e1nPA nPAf1 2.a1nG nPnf5#

c) 1.d1nVA nVAc2 2.e1nZ nVAf5#

Here we see, however, something completely different and relatively new. White mates by antibattery on f5, mating neutral piece is prevented from going away by paralysis from promoted piece of the same type, thanks to Madrasi rule.

1.nBc4 nBe6 2.nBxc8 nBb7 3.Sd7 nBxc6#

1.nRxc6 nRc1 2.nRa1 nBd3+ 3.nBb1 nRxb1#

1.b4 nBa6 2.nBb7 cxb7 3.nRa8 bxa8nB#

I have had already preselected this helpmate as an excellent example when Manfred has pointed to me too. Thanks! There are 3 neutral units on the board and to reach mate, two of them are captured by the third. Very neutral Zilahi, isn't it?

1.c7! zz
1...nSPh1nQ 2.cxd8nS nQxh6 3.nQg6 nQd6#
1...nSPh1nS 2.cxd8nQ nQxg5 3.nQf5 Gg4#
1...nSPh1nR 2.cxd8nB nRxh6 3.nBxb6 nRxb6#
1...nSPh1nB 2.cxd8nR nBc6 3.nRxc8 Rb1#
1...nSPh1nG 2.cxd8nG nGa8 3.nGxf8 nGxa3#

There is already handful of mixed Babsons mostly by Daniel Itzhaky available on CCM, this is an interesting addition to the collection. Only out of 5 mates are given by neutrals, just fulfilling the requirement for this selection. Irreversibility is ensured by Madrasi condition again. A bit too many pieces for my taste.