Mate en 2
Speckmann, Werner
1963
Revue FIDE
Speckmann, Werner
1963
Revue FIDE
Pauly, Wolfgang
1913
British Chess Magazine
Marandjuk, Michail Nasarowitsc
1997
Mem. V. Kukyanov Kotovski visti 1.Prix
Sponer, Andor
1903
Wiener Schachzeitung
Andrejew, Alexander
1996
Kuban segodnja