Endgame leaks are not opening leaks
A repeated opening fork that dies on move forty is often an endgame habit wearing an ECO code. Read the whole game before you abandon the first eight moves.
Chessigma groups by the positions you repeat. If those positions are opening forks but the points disappear after the queens come off, study the ending. Do not burn a repertoire that was scoring until the last ten minutes.
Where the score actually moved
Open three games from the finding. If you were equal or better out of the opening and then lost a rook ending, the opening is not the leak.
Engine review is the right tool for a single ending. History is the right tool if you keep choosing the same losing plan in those endings.
Split the question
Ask “do I still want this opening?” only after “did I already have a playable game?” Those are different drills.
Frequently asked questions
Can a report tell me that?
It can show the fork and the score. You still have to look at when the game turned.
Should I import only openings?
No. Import the games. Then refuse to treat every loss as an ECO problem.
Chessigma imports public Chess.com and Lichess history and reports repeated choices — not engine grades. Import your games · Methodology