Square trainer
I name a square, you tap it on the board. Thirty seconds: see how far you get. Once squares come without thinking, dictating moves and reading notation stop being work.
Best: 0
Thirty seconds. A square name appears and you tap it: each hit scores one.
You play from
As Black the board flips: that's where most people slip, which is exactly why it's worth drilling. Each orientation keeps its own best score.