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