Train the opening forks you actually leak points on
Puzzles from a tactics book are someone else’s positions. Chessigma drills the decision where your history says you keep choosing the worse of two familiar moves.
A useful drill is a position you have already reached, with the move that has been scoring poorly for you hidden until you choose. That is cheaper study than a random mate-in-two.
Take the fork, not the whole opening
If Qb3 in one Italian structure is the leak, you do not need a new repertoire course. You need that board, your usual alternative, and a few of your own games that used each move.
Chessigma’s training positions are those forks. They are not engine puzzles and they are not opening-book quizzes from move one.
Caps exist so the habit stays current
The free plan includes one drill a day and your single biggest leak. Paid removes the cap. The positions still come from the same import.
When your rating or time control changes, refresh the import. A drill from last year’s bullet binge will train the wrong habit.
Frequently asked questions
Do I need Stockfish for these drills?
No. The question is which of your own moves has scored better from that board.
What if there is no leak?
Then there is no drill. Silence means the sample did not clear the bar.