Originals from Pat a Mat 26 - first part

Comment on original for solving:
This time three twomovers will b enjoyed by lovers of cyclic themes. (Yes, the term for "cyclic encyclopedy" is near, so there is no good in missing it...) I recommended Emil to send his work to Lacny jubilee tourney, but he said he will make something better. But I think that combination of themes on diagram isn't simple at all.

Solution:
1.Je2+?, 1...Kxc4, Ke5 2.Dxc3A, Dc5B#, 1...Ke3!,
1.Je6+?, 1...Kxc4, Ke5, Ke3 2.Dc5B, Vxe4C, Dxc3A#, 1...Vxe6!,
1.Vd7+!, 1...Kxc4, Ke5, Ke3 2.Vxe4C, Dxc3A, Dc5B#.

Almost total Lacny theme (only one mate in one phase is missing). But a man interested in constructions of this kind knows that inserting missing mate is (roughly said) as difficult as constructing the position on diagram. I emphasize that without twins and without promoted pieces wasn't done former nor latter. (PG)

Comment on original for solving:
Ivan sent us Ukrainian cycle with thematical defence by Bishop - and it seems to be original.

Solution:
1.Vxf6? th. 2.Sf5A#, 1...Sxe3 2.Vdxe5B#, 1...Dxg2!,
1.Da8? th. 2.Vdxe5B#, 1...Sxe3 2.Vd4C#, 1...Sxc4!,
1.Dxf2! th. 2.Vd4C#, 1...Sxe3 2.Sf5A#.

Ukrainian cycle in more difficult form (when thematical defence isn't king move). (PG)

Comment on original for solving:
Finally Vasyl continues his research of extended Djurasevic theme.

Solution:
a) 1.exd6A! th. 2.Ve7B#, 1...Sd4, Sxd6 2.Jc3C, Dxd5D#

b) 1.Ve7B! th. 2.Jc3C#, 1...Sd4, Sd6+ 2.Dxd5D, exd6A#.

Four-fold Djurasevic cycle (cycle of key, threat and mates after two defences). Twomovers with this theme may be counted on fingers of one hand. (PG)

Comment on original for solving:
Classic miniature from neighbouring Poland we would like to accept as at least partly original, but we are very sceptical about that.

Solution:
1.Df1! th. 2.Df6#,
1...Kh4, Kg6 /Kh6/ 2.Df3, Df6+ etc.

After 1...h4 2.Df6+ Kh5 3.Jg7# is the mate not pure "thanks" to h4. I means that concurrence to Kakabadze's discoveries "in very old waters" is postponed for the time beeing... (KM)

Comment on original for solving:
469 with the help of promoted piece (the reason for excluding from one unnamed JT) tries to make 'letter' synthesis of logic and new-strategic content by application of really inspiring #2 by J. Valuska (1st Prize SU-SS 1994 - see 285 PaM 24).

Solution:
1.Vh2?D Je4a 2.Sd2+A Jxd2 3.Jf5#C, 1...Va2!,
1.Vh4?E Je2b 2.Sd4+B Jxd4 3.Vc3#, 1...Vxb4!,
1.Vf6! th. 2.Vf3#,
1...Vf8 2.D th. 3.A, 2...ab 3.BC,
1...Vf7 2.E th. 3.B, 2...ab 3.CA.

Valuska's threat Lacny in subvariations in combination with Palitzsch form od Dresden theme. (author)

Comment on original for solving:
Strategical 470 doesn't want only to fill the gap, it also provides chance to announce important fact that Memorial Idunk C 1.10.1998 for threemovers (470 was originally submitted there) was cancelled due to very low number of entries.

Solution:
1.Jxf5? th. 2.Da5+A, 1...c5!,
1.Kb6? th. 2.Dd3+B, 1...Vxe7!,
1.Jxf7! zz,
1...Vd4 2.A c5 3.Da8#,
1...c5 2.B Vd4 3.Dxf5#.

Reciprocal blocking of two squares with threat antiparadoxes. (author)