hexagon7: If black simply connects at T3, doesn't that give a 'big'eye 4 spaces = 5 liberties, plus the outside is 6 liberties? I don't see how the White P1 group escapes.
posetcay: It is not a real big eye because it is corner group. You can play the capturing race out move by move when in doubt.
It is not a real big eye because it is corner group. You can play the capturing race out move by move when in doubt.