Strategy & improvement
A chess rating is a single number that estimates your playing strength. Beat stronger opponents and it climbs; lose to weaker ones and it falls. The maths exists so that two strangers can be matched fairly and so your progress is measurable.
Before a game, the rating system predicts how likely each player is to win. If you are rated 400 points higher than your opponent, you are expected to score about 0.92 (roughly a 92% chance of the point). Equal ratings means an expected score of 0.5.
After the game, your rating moves toward the difference between how you actually did and how you were expected to do. Beating a much stronger player gains a lot; beating a much weaker one gains almost nothing.
Expected score for player A against player B is:
E_A = 1 / (1 + 10^((R_B - R_A) / 400))
New rating is R_A' = R_A + K * (S_A - E_A), where S_A is 1 for a win, 0.5 for a draw, 0 for a loss, and K controls how fast ratings move (often 20–40 for new players, smaller for established ones).
Plain Elo treats every player the same. Glicko-2 (what 88chess uses) adds a rating deviation (RD) — a confidence measure. A new player has a high RD, so their rating moves quickly while the system learns their strength; an established player has a low RD and a more stable rating. This is why your first few games can swing more, then settle. On 88chess new players start around 1200 and calibrate from there, with a floor that protects your first games from cratering.
It is not a measure of intelligence or worth — it is a snapshot of results against a pool. Ratings only compare meaningfully within the same pool, so a 1500 on one site is not exactly a 1500 on another.
Want to see the numbers move? Play a rated game free — your rating updates after every game, free games included.
On most online pools, under ~1000 is beginner, ~1000–1400 is improving casual, ~1400–1800 is solid club strength, and 2000+ is expert. These bands are approximate and differ between sites.
New players have a high rating deviation, so the system adjusts quickly while it learns your strength. After a few games the swings get smaller.
On 88chess, yes — your rating updates after every game, free games included, so your progress is real.