Puzzle rating
A puzzle rating is a number that estimates how hard a tactical puzzle you can reliably solve, and it rises and falls as you solve or fail puzzles of known difficulty, much like a game rating.
Also called: puzzle Elo
Puzzle rating borrows the idea of a game rating and applies it to tactics. Each puzzle has a difficulty number, and each solver has one too. Solve a hard puzzle and yours goes up; miss an easy one and it drops. Over time it settles near the difficulty you solve about half the time.
It measures something narrower than playing strength. A puzzle tells you a tactic exists, which is a huge hint, while in a real game nobody announces that a combination is hiding. That is why many players have a puzzle number far above their game rating, and why the two should never be compared directly. Different sites also scale their numbers differently, so a figure on one platform does not translate to another.
The common mistake is chasing the number: rushing, guessing, or retrying until a puzzle works. That inflates the rating while teaching little.
A better habit is to treat the rating as a rough guide for choosing difficulty. Pick puzzles you solve most of the time but not all of the time, calculate fully before moving, and review every miss to find what you overlooked. Slow, correct solving builds the skill the number only approximates.
It sits close to Puzzle theme. A puzzle theme is a label for the tactical idea a puzzle teaches, such as a fork, a pin or a back rank mate, so that training can be grouped by pattern and weaknesses can be targeted directly.
Also worth reading is Tactics training. Tactics training is deliberate practice at spotting and calculating short forcing sequences, such as forks, pins and mating attacks, usually through puzzles, so that these opportunities are found quickly in real games.
Computer terms such as "Puzzle rating" are most useful next to a coach who reads your games with you, which is how a first lesson with George Li works.
Related terms
Tactics training is deliberate practice at spotting and calculating short forcing sequences, such as forks, pins and mating attacks, usually through puzzles, so that these opportunities are found quickly in real games.
A puzzle theme is a label for the tactical idea a puzzle teaches, such as a fork, a pin or a back rank mate, so that training can be grouped by pattern and weaknesses can be targeted directly.
An Elo rating is a number that estimates playing strength from results: the gap between two ratings predicts the expected score, and wins and losses move each player's rating up or down.
Calculation is the skill of mentally working out concrete sequences of moves and replies, one line at a time, to judge what a position really offers before committing to a move.
A tactic is a short, forcing sequence of moves that exploits a concrete feature of the position, such as a fork, pin or unprotected piece, to win material, deliver mate or reach a clear gain.
Guides that go further
What a rating measures, how FIDE, Lichess, US Chess and chess.com compute theirs, and why the numbers differ.
Average chess rating and a good chess rating
What share of active Lichess players are rated above 800, 1200, 1500, 1800 or 2000, by time control.
Work out how a FIDE rating changes after a run of games.
Want to spot this in your own games?
A first lesson starts with your games: George reviews them and builds a study plan around what he finds.