

Like e4 or b7.
On a board with no labels.
As many as you can in time.

You read and calculate lines in notation. If e5 takes a second to find, every line costs you time.
A few minutes of this and squares become instant.
Every line you calculate is a list of squares.Knowing them by name makes it faster.
1, 2 or 3 minutes.
60 of every 100 lost games are a missed tactic.Free to start, no card needed.
Start free