Obliczanie W Warcabach, Calculating in draughts, part 2 & 3

Obliczanie W Warcabach, Calculating in draughts, part 2 & 3

Obliczanie W Warcabach, Deel 2 En 3 - E. Watutin
Calculating in draughts, part 2 and 3
To train your calculating skils in draughts