howtostudychess

Home

An AI chess coach · grounded in Stockfish

AI chess coaching that can’t lie to you.

Import the game you just lost — or play one here — and get every mistake explained in plain English. Each claim is checked against Stockfish before you see it, so the coach can’t invent a move that doesn’t work. Then drill the mistake until it’s gone.

Stockfish 18 ◆ 250,000+ tactics ◆ Imports Chess.com & Lichess ◆ No card to start

Game review screen: the blunder hxg4 is flagged, the better move c3 is drawn on the board, and Coach Peter explains the plan in chat

A real review in the app: the blunder flagged, the better plan on the board, and a coach that answers back.

−2.3?

The problem

You know you lost.
You don’t know why.

You replay the game. The engine says “−2.3.” That number doesn’t tell you what you did wrong — so nothing changes. You play the next game and hang the same piece. More games, same mistakes, same rating.

Why we’re different

Most AI chess tools make things up.

Ask a chatbot why you lost and it will suggest a move that’s illegal, or one that drops your queen — stated with total confidence. That isn’t coaching. It’s guessing in a confident voice.

Typical AI — confident, wrong

“Play Qh5 — winning attack.”illegal ✕
“Bxf7 wins material.”drops the queen ✕

No engine behind it. It sounds sure, and it’s wrong.

howtostudychess — correct first

“…Nxf4 wins the bishop.”✓ engine-best
Every line checked for legality.✓ validated

Every explanation is checked against Stockfish before you see it. The coach can’t show you a tactic that doesn’t work.

How it works

Play. Understand. Drill. Repeat.

01

Play

Play a Stockfish bot at your level — or import the game you just lost on Chess.com or Lichess.

02

Understand it

Get a full review, plus a coach you can talk to by text or voice — during the game or after.

03

Drill it

Every blunder becomes a named weakness and a spaced-repetition exercise that returns until you’ve fixed it.

The live coach

Ask why. Get a straight answer.

No competitor lets you do this: a back-and-forth conversation about your position, mid-game or in review, by text or voice. The coach only speaks from what the engine calculated — ask it anything, and it answers like a teacher, not a spreadsheet.

More about the Live Coach →

Coach chat: the player asks why hxg4 was a blunder and the coach answers with the concrete plan, grounded in the engine

What you get

One app. The whole loop.

★ most loved

Unlimited Game Review

The moment you lose, see where it went wrong: every move graded, the turning points marked, and the one lesson that matters — in plain language, not engine jargon.

A coach you can talk to

Ask “why is this bad?” mid-game and get a straight answer by text or voice — not a wall of engine lines.

Drills from your mistakes

No generic course. Your leaks become your training plan, spaced so they actually stick.

The math

A real coach’s “why,” for the price of two coffees.

Human coaches: $30–80/hour, by appointment.  Us: $9.99/month — every game, any hour.

Stop guessing

Start improving today.

Play a game, get it reviewed, and see the difference. Free to start — no card required.