Arnhem theme

White has two thematic tries. Two thematic black defences alternatively either defeat the try or are
met in either try with the same mate.

Scheme:
1.X? a 2.A, 1…b!
1.Y? b 2.A, 1…a!

cyclic Arnhem theme

White has three thematic tries. Three thematic black defences alternatively either defeat the try or are met in with the same mate.

Scheme:
1.X? a 2.A, 1…b!
1.Y? b 2.A, 1…c!
1.Z? c 2.A, 1…a!

Iwanow, Eugeniusz
H.Mattison-75 MT, Shakhmaty (Riga), 1970-71
1st Prize
FIDE Album 1068-70

selfmate in 2 moves

Bartolovic theme

In one phase, there are two mates after black’s two thematic defenses. In the next two phases, one of these mates is changed and the other remains the same.

Scheme:
1.X a 2.A, 1…b 2.B
1.Y a 2.C, 1…b 2.B
1.Z a 2.A, 1…b 2.D

Klemanic, Emil; Sovik, Stefan; Gvozdjak, Peter
8th WCCT, 2007-08
4th Place
FIDE Album 2007-09

mate in 2 moves

Barnes theme

There are two threats in one phase and single threats in the second and third phases.

Scheme:
1.X ~ 2.AB
1.Y ~ 2.A
1.Z ~ 2.B

Labai, Zoltan
Slovenska Organizacia Kompozicneho Sachu (miniatures), 1997-98
2nd Prize
FIDE Album 1995-97

mate in 2 moves

Rudenko theme

Two (or more) threats from one phase appear as mates in variations in subsequent phase(s).

Scheme:
1.X ~ 2.AB
1.Y a 2.A, 1…b 2.B
(2 phases)

Scheme:
1.X ~ 2.AB
1.Y a 2.A
1.Z b 2.B
(3 phases)

Rudenko theme – reversal form

Scheme:
1.X ~ 2.AB, 1…a 2.C, 1…b 2.D
1.Y a 2.A, 1…b 2.B
(2 phases)

Scheme:
1.X ~ 2.AB, 1…a 2.C, 1…b 2.D
1.Y a 2.A
1.Z b 2.B
(3 phases)

Mażul, Waldemar
Die Schwalbe, 2000
3rd Prize
FIDE Album 1998-2000

mate in 2 moves

Urania theme

Total change of functions (first move, threat and mate) of the same white move in different phases.

Scheme:
1.A
1.X ~ 2.A
1.Y a 2.A

Iwanow, Eugeniusz
Wola Gułowska, 1996
2nd Prize
FIDE Album 1995-97

selfmate in 2 moves

Zagoruiko theme

Change of at least two mates in at least three phases.

Scheme:
1.X a 2.A, 1…b 2.B
1.Y a 2.C, 1…b 2.D
1.Z a 2.E, 1…b 2.F

Zagoruiko theme nxm

Change of at “m” mates in “n” phases.

Scheme:
1.A a 2.A1 , 1…b 2.A2 , … 1…m 2.Am
1.B a 2.B1 , 1…b 2.B2 , … 1…m 2.Bm
1.N a 2.Ni, 1…b 2.N2 , … 1…m 2.Nm

cyclic Zagoruiko theme

Cyklic change of two mates in three phases.

Scheme:
1.X a 2.A, 1…b 2.B
1.Y a 2.B, 1…b 2.C
1.Z a 2.C, 1…b 2.A

threat-Zagoruiko theme

Scheme:
1.X ~ 2.A, 1…a 2.D
1.Y ~ 2.B, 1…a 2.E
1.Z ~ 2.C, 1…a 2.F

distributed Zagoruiko theme

Scheme:
1.X a 2.A, 1…b 2.B
1.Y a 2.C
1.Z b 2.D
1.K a 2.E, 1…b 2.F

Nanning Zagoruiko theme

Scheme:
1.X a 2.A, 1…b 2.B
1.Y a 2.B, 1…b 2.C
1.Z a 2.D, 1…b 2.A

Szwedowski, Leopold
Europe Echecs, 1967
2nd Prize
FIDE Album 1965-67

mate in 2 moves

FEN: 1r2R2b/3Q3q/2Npn1b1/3k2p1/Np1B1PP1/1P1p1R1P/6B1/5K2