Originals from Pat a Mat 23 - fourth part

Comment on original for solving:
Fairy twomovers 219-222 have in some way common idea - changes of mates and their transfers and also changes of function of white moves.

Solution:
1.Sb5+? Kb6 a, Kc7 b, Ke7 c, Kf6 d 2.a8J# A, a8T# B, g8J# C, g8T# D, 1...Ke6 2.g8S#, 1...Kxf4!, 1.Sf5+! abcd 2.BADC, 1...Kc6, Kxd1, Kxb4 2.a8S#, Vd3#, Vb3#.

Double reciprocal change a la Bohuslav Sivak (Comm Brabec 60 C 26.5.1998, Lacny theme) it means with checking keys sending black king to more far flights, here with unexpected differentiation of knight and nightrider promotions.

Comment on original for solving:
Fairy twomovers 219-222 have in some way common idea - changes of mates and their transfers and also changes of function of white moves.

Solution:
1.Vf4? hr. 2.Exd7# A, Exf5# B, 1...Dd5 2.Exd5# C, 1...Dxe6!, 1.Sf4? hr. 2.B, C, 1...Vb5 2.A, 1...dxe6!, 1.Jdf4! hr. 2.C, A, 1...Vd3 2.B

Cyclical double threats where missing one acts as a variation mate. Abstract placement of white unit to f4 would lead to triple threat, but as concrete white keys always remove one mate, it seems this can be considered to be Sushkov theme.

Comment on original for solving:
Fairy twomovers 219-222 have in some way common idea - changes of mates and their transfers and also changes of function of white moves.

Solution:
a) 1.Vb1! A hr. 2.(1,5)e6# B, 1...Ce4 a, 2.Dh4# C, b) 1.B! hr. 2.C, 1...a 2.A, c) 1.C! hr. 2.A, 1...a 2.B

I got a) and b), but Mars Circe is too much for me. I tried, but it was impossible. Too much fairy. (Bohuslav Moravcik) Total Djurasevic theme with varied motivation is great achievement despite weaker economy.

Comment on original for solving:
Fairy twomovers 219-222 have in some way common idea - changes of mates and their transfers and also changes of function of white moves.

Solution:
1.LEg6? hr. 2.ABd6#, 1...Jf5, Se5, PAd5, Sb4 2.LEf1#, ABc6#, ABe6#, Jd3#, 1...VAxe4!, 1.LEe6? hr. 2.ABd6#, 1...Jf5, Se5, PAd5, Sb4 2.ABc6#, LEf1#, ABg6#, Se3#, 1...PAxe4!, 1.LEc6? hr. 2.ABd6#, 1...Jf5, Se5, PAd5, Sb4 2.ABe6#, ABg6#, LEf1#, Qxf3#, 1...PAxe4!, 1.LEb3! hr. 2.ABd6#, 1...Jf5, Se5, PAd5, Sb4 2.Jd3#, Se3#, Qxf3#, hxg3#

And here we see 30 pieces, white king is in check, but ... change Z-44-48. More precise study of theme reveals 4-phase carousel, where in 'non-carousel' variation has the same mate in 3 phases (!), thus giving triple reciprocal change too. Monumental work.

Comment on original for solving:
Andernach chess is well used in 223.

Solution:
a) 1.Dxf7(bD) dxe8V(čV) 2.Vxe6(bV) Ve3#, b) 1.Sxf7(bS) exf8J(čJ) 2.Jxe6(bJ) Jf4#

Standard (and nice) Andernach strategy.

Comment on original for solving:
224 joins two unusual fairy conditions with fairy rules for kings.

Solution:
a) 1.e1C+ Kd4 2.e2 Cd3# (3.Kd1?), 1...Kxa4 2.Sc1 Cd1# (3.Kxd1?), b) 1.e1D! Cd1+ 2.Dxh4(bD) De1# (3.Kxe1(bK)?), 1...Cf4 2.Dxd2(bD) Df2# (3.Kxf2(bK)?)

Interesting study of possibilities of two hard-core fairy genres, but there is missing more unity here.

Comment on original for solving:
225 is puzzle for solvers.

Solution:
1.Dh7 Kb2 2.Kb8 Dg2 3.Db1 Db7#

Exact manoeuvre - little nut. Is there anybody able to double this or something similar?

Comment on original for solving:
226 has model motes.

Solution:
a) 1.Tc8 Jc4+ 2.Kf3 Cc5 3.Te4 Je5#, b) 1.Kf3 Ce5 2.Kg4 Cf6 3.Kh3 Jf2#, c) 1.Tc6 Cc7 2.Cf4 Cc5+ 3.Kf3 Jd2#, d) 1.Kd3 Ce3 2.Kc2 Cf2+ 3.Kd1 Jb2#, e) 1.Cf4 Cf3 2.Ke4 Ke2 3.Te5 Jc3#

5 model mates.

Comment on original for solving:
Don't miss set play in 227.

Solution:
1...Da6 2.Vd8 Df1 3.Kg5 Da6 4.Vb8+ Kc6 5.Kf6 Df1 6.Ke7 Da6 7.Kd8 Df1 8.Vb5 Df8#, 1.Va3 Db1 2.Kg5 Dh7 3.Kf6 Db1 4.Ke7 Dh7 5.Kd8 Db1 6.Va7+ Kc6 7.Kc8 Dh7 8.Vc7+ Dxc7#

Maximummer typical for Torsten, he published already dozens of them.

Comment on original for solving:
228 is mild seriesmover with nice stroke.

Solution:
1.d5 2.d4 3.Dd5 ... 11.Kc2 ... 14.d1V ...16.Vb2 ... 18.Ka1 ... 20.Va4 ... 22.Ka3 24.Da5 Sb6=

Elegant seriesmover, one can find 5 Circe-selfcheck illegal captures in final position.