delete all things irrelevant to liberties
delete all things irrelevant to liberties

Rochester-NRT/AlphaGo,Rochester-NRT/AlphaGo,wrongu/AlphaGo,ttrine/AlphaGo,wrongu/RocAlphaGo,vftens/RocAlphaGo,wrongu/AlphaGo,MaMiFreak/RocAlphaGo,Rochester-NRT/RocAlphaGo,wrongu/AlphaGo,Rochester-NRT/AlphaGo,hiropppe/RocAlphaGo