Each one trains a part of seeing ahead. On the phone, they work offline too.
The board freezes. You answer from the position in your head.
Is there a tactic, what forces, the whole line, then what it was worth.
The board in your head: squares, colours and pieces with no board.
Know what to train, and why the answer works.
60 of every 100 lost games are a missed tactic.Free to start, no card needed.
Start free