Hannelius theme
The first try, with the threat “A”, is refuted by the “a” move. The second try with the threat “B” is refuted by the move “b”. In the next phase, usually the solution, a defence “a” is followed by mate “B” and mate “A” after “b”.
Scheme of the theme:
1.X? ~ 2.A, 1…a!
1.Y? ~ 2.B, 1…b!
1.Z a 2.B, 1…b 2.A
ideal Hannelius
The Hannelius theme where in the first try there is a defense “b” followed by mate “C” and in the second try there is a defense “a” followed by mate “D”.
Scheme of the theme:
1.X? ~ 2.A, 1…b 2.C, 1…a!
1.Y? ~ 2.B, 1…a 2.D, 1…b!
1.Z a 2.B, 1…b 2.A
cyclic Hannelius
Scheme of the theme:
1.X? ~ 2.A, 1…a!
1.Y? ~ 2.B, 1…b!
1.Z? ~ 2.C, 1…c!
1.K a 2.B, 1…b 2.C, 1…c 2.A
defence-based Hannelius
Scheme of the theme:
1.X ~ 2.A, 1…a 2.C
1.Y ~ 2.B, 1…b 2.D
1.Z a 2.B, 1…b 2.A
Chepizhny, Victor
Memorial D.Kanonik, Chervony girnik, 1992-93
2nd Prize
FIDE Album 1992-94
mate in 2 moves