NB 6, spread 2 ... 6 ... Corinth:Notebook:6
2 3 ... NB 6, spread 5 (pp. 2 - 3) ... 6 ... Corinth:Notebook:6
Β'-6 ... Β'-6
Η'-6 ... Η'-6-2 ... Η'-6-2
Ζ-6 ... Ζ-6
Κ-6 ... Κ-6
Η-6 ... Η-6
Β-6 ... Β-6