Secondary liberties example U
Black can put White into atari after 18 plays. Here and might be the final plays by Black. It doesn't delay Black if White plays at (Black answers at a) or at a (Black could take since this is auto-atari).
Black can put White into atari after 18 plays. Here and might be the final plays by Black. It doesn't delay Black if White plays at (Black answers at a) or at a (Black could take since this is auto-atari).