Personal chess history vs engine review: which question are you asking?
Engine reviews grade one game. History analysis asks whether a choice you repeat is scoring worse than your usual move. They answer different questions.
Use an engine when you want the objectively better move in one position. Use your own game history when you want to know which decisions keep showing up in your results.
Two measurements, two jobs
Centipawn loss tells you how far a move sat from the engine’s preference. It is precise, cheap to compute, and almost silent about whether you will face that position again.
A personal-history report only speaks when the same position and both candidate moves appear often enough. It is worse at tactics and better at habits.
When the engine is the right tool
Tactical oversights, a missed mate, and a hanging piece are engine work. You already knew those moves were bad when the reply landed. Run the review, note the tactic type, and move on.
Do not average accuracy across wildly different time controls and call it improvement. A quiet positional rapid game and a 60-second brawl produce different numbers at the same strength.
When your own scoreboard is the right tool
If you keep leaving the same Italian structure a move early, or you keep choosing a queen excursion that has scored poorly for you, the engine will call each instance something different. Your history calls it one decision.
Chessigma is built for that second job. It does not run Stockfish and does not label blunders.
Frequently asked questions
Can I skip the engine entirely?
You can, but you will miss tactics that never repeat. Use both: engine for the shot you missed, history for the plan you keep choosing.
Does a lower historical score prove a move is bad?
No. It is an association in your games. Opponent pool and form can confound it. Use it as a prompt to look at those games together.