How to Read Engine Scores
Learn to read positive and negative scores, score swings, and candidate moves without treating the number as absolute truth.
Engine scores are easy to misread because they look like a firm answer, when in fact they are only a relative judgment at the current search depth. What matters is not just whether the score is positive or negative, but why it changes, whether the change is stable, and whether the gap between candidate moves is meaningful. Once you read scores properly, you stop treating “half a piece ahead” as if the game were already over.
First decide whether the score represents advantage, equality, or disadvantage, then compare it with the previous move.
Compare the top 2-3 candidate moves and their score changes instead of only the first choice.
Put the score back into the real board position and check tactics, piece activity, and king safety.
If the score keeps bouncing, keep watching a deeper search instead of drawing a quick conclusion.