Chepizhny theme
One changed and one transferred mate in three (or more) phases.
Scheme:
1.X a 2.A, 1…b 2.D
1.Y a 2.B, 1…c 2.D
1.Z a 2.C, 1…d 2.D
Czepizny, Wiktor
Shakhmaty v SSSR, 1965
1st-2nd Prize
FIDE Album 1965-67
mate in 2 moves
Pages: 1 2

Blog about chess problems
One changed and one transferred mate in three (or more) phases.
Scheme:
1.X a 2.A, 1…b 2.D
1.Y a 2.B, 1…c 2.D
1.Z a 2.C, 1…d 2.D
Czepizny, Wiktor
Shakhmaty v SSSR, 1965
1st-2nd Prize
FIDE Album 1965-67
mate in 2 moves