Is it worth finding a coach or a stronger mentor to study with?
These answers restate the rules implemented by our open-source engine, which follows the WXF laws and is regression-tested against the official 110-diagram repetition casebook. Where an answer refers to a specific position, that position lives on the linked reference page, where the build verifies it against the engine before publishing.
Direct answer
Genuinely useful if you can find one, because a stronger player can spot recurring patterns in your own play that are very hard to see from the inside, the blind spots you do not know you have. It is not a requirement, though, plenty of strong players improve almost entirely through self-directed study, so treat a coach or mentor as a real accelerant rather than a necessity.
What a coach or mentor actually adds
An outside perspective on your specific games, not generic advice, catches things a training log or a puzzle set cannot, because those tools only ever show you what you already chose to look at. Someone stronger reviewing your actual losses can point directly at the pattern behind them.
Getting real value without a formal coaching relationship
A stronger club player or online friend willing to look over a game occasionally provides much of the same benefit as formal coaching, especially early on. See online study groups for a related, more informal way to get a second pair of eyes on your play.
Related questions
Do I need a coach to reach a strong club level?
No, self-directed study with honest review of your own games gets most players there on its own.
What should I actually ask a coach or mentor to look at?
Specific recent losses, ideally several at once, so they can look for a pattern rather than judging one game in isolation.