I am playing with SmartGo and I don’t understand one situation.
I am playing as Black.
$$Bcm82 $$ +---------+ $$ |O.O.OX.X.| $$ |OOOOOXXXX| $$ |.OXXOXXO.| $$ |OOOXXXXXX| $$ |COOOOOXXX| $$ |2XO.OOOX.| $$ |XXXOOXOXO| $$ |nXOOOXXXO| $$ |1XXO.XyXO| $$ +---------+
Why am I allowed to play at G1 (marked y), but not at A2 (n)? I am surrounded by my own stones in both cases.