#chess improvement

2 articles

Online Chess Ratings Explained: Elo, Glicko and Why Your Number Differs Between Sites

How chess ratings are calculated, what rating deviation and provisional ratings mean, why sites disagree, and how to use your rating without obsessing over it.

27/09/2026 5 min read

Game Review

Blunder, Mistake, Inaccuracy: How Engines Grade Your Moves and What the Labels Really Mean

Why the same half-pawn loss is a blunder in one position and nothing in another, how accuracy percentages are calculated, and which labels deserve your attentio

27/09/2026 5 min read