Make sure minibatch split between player being white and black
Make sure minibatch split between player being white and black

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