Evaluation: a practical example
A displayed positive score often favors White in a board interface, but some engine protocols report from the side-to-move perspective. A score is not a promise of a win, and its scale may depend on the engine's normalization and the interface.
How to use the idea in your games
Always confirm the score's perspective and settings. Compare the proposed continuation and defensive resources instead of treating a small numerical difference as a complete explanation.
A useful study question
Can you explain evaluation in your own words, identify it in a position, and describe when the idea does not apply? Test the explanation on a legal board before relying on it.
Connect the ideas
Chess engine, Material, Principal variation are useful next concepts. Follow the links to compare definitions and examples, then return to the complete chess glossary whenever an unfamiliar term appears.
Sources & further reading
References checked September 5, 2026. Linked services are independent of ChessRankings.com™.