Mate en 2
Hopwood, Thomas Henry
1876
The English Chess Problem
Hopwood, Thomas Henry
1876
The English Chess Problem
Aarzen, Hans
1977
Probleemblad, 1977
Hartong, Jan
1948
2e B.V. BOE 1948
Hunter, James A. William
1876
The English Chess Problem
Forster, Fritz
1889
Wiener Hausfrauen-Zeitung, 1889