Life and death is very important, This app will help you practice every day
Over 3,500 go problems
arefully selected problems ranging from basic life and death to advanced life and death
Four grades: Beginning, Elementary, Intermediate, Advanced
A lot of types: Atari , Live, Nakade, Ko, Capturing race, Throw-in, Net, Clamp, Connect along the edge, Ladder, Cut, Hane, Wedge ,Kosumi, Jump, Sagari, Placement, Two-stone edge squeeze, Double shortage of liberties, Under the Stones, seki , Vital point , Go Theory , Corner Shapes, Eyes win, Tesuji, Endgame,Atari