LA DIFESA IPPOPOTAMO

1 ... e6
2 ... Ce7
3 ... a6
4 ... b6
5 ... Ab7
6 ... h6 ....  diagramma

Difesa Ippopotamo 01 

ABK file
FDK file
CTB file
CTG file
PGN file




Difesa Ippopotamo 02 

PGN file


1 ...      1. Ch6