Chess Masti
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DEMOCRATIZING HIGH-QUALITY CHESS EDUCATION

Chess coaching, for everyone.

World-class chess coaching has been out of reach for many players. We're changing that. Stockfish 17 + a smart AI coach + a hallucination validator deliver the same caliber, free for everyone.

Start your planAnalyze a game
Backed by GM Pavel Skatchkov and GM Alex Colovic
Engine-grounded AI coaching
·
Free account, no card
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Lichess sync

Coach

Stockfish-grounded · live

Was 14.Bxh6 sound?
Stockfish says +1.8 — sharp but holding. The cleaner path was 14.Nd5 first; you'd be +2.4 with no defensive work. Want the full line?

Every claim validated against the engine

BACKED BY GRANDMASTERS

What grandmasters say about Chess Masti.

Two grandmasters who have seen the project, in their own words.

Portrait of GM Pavel Skatchkov

GM Pavel Skatchkov

Grandmaster

This project is the future of chess and of humanity as a whole. Therefore, your work is very important.
Portrait of GM Alex Colovic

GM Alex Colovic

Grandmaster

It's commendable what you have done, providing free coaching to those who cannot afford it.
Stockfish 17
Engine-grounded AI coach
Hallucination validator
100,000 Lichess puzzles
Maia-2 humanlike opponent
Neo4j puzzle graph
Lichess OAuth sync
Stockfish 17
Engine-grounded AI coach
Hallucination validator
100,000 Lichess puzzles
Maia-2 humanlike opponent
Neo4j puzzle graph
Lichess OAuth sync
HOW IT WORKS

Three steps from game played to lesson learned.

01

Drop your game.

Paste a PGN, a Lichess link, or play one live — the coach picks up wherever you are.

02

Engine + AI analyze.

Stockfish 17 evaluates every move. Our AI coach turns the numbers into a plain-English lesson. A validator checks every claim before you see it.

03

You improve.

Drill same-motif puzzles the coach surfaces, then face Maia-2 at your rating. Progress, on loop.

THE COACHING STACK

GM-caliber coaching, free for everyone.

Stockfish-grounded analysis, motif drilling, and opponent prep work together in one free coaching experience. Here's the stack that makes it possible.

Stockfish 17, in your browser.

The world's strongest engine evaluates every move via WASM — locally. Coaching commentary always starts from real numbers, then the coaching request is sent securely to Anthropic or the configured OpenAI fallback.

+1.8
Best: Nd5
Depth 22

100%

Of claims fact-checked.

A chess.js validator checks every move, line, and evaluation the coach mentions. Hallucinations don't reach the page.

100,000

Lichess puzzles, indexed.

FEN cosine-similarity reranks puzzles to your weak motifs.

Beat the bot that plays like you.

Maia-2 mimics human moves at your rating. No more 3500-Elo crushing — train against your actual ceiling.

One-click Lichess sync.

OAuth 2.0 PKCE in. Pull your games, push your repertoire, play live — without leaving the coach.

Scout your next opponent. Tells show you what to play.

Drop a Lichess or Chess.com handle. We surface their opening tendencies, blunder patterns, and time-trouble breakpoints — so you walk in with a plan, not a hope.

Try Scout
PUZZLE OF THE DAY

One puzzle a day. Coached, not just rated.

Today's puzzle

Endgame · Knight fork

White to play. Find the winning move.

Drag the knight to win material. Wrong moves bounce back — same way the coach guards you mid-game.

Ask the coachSkip to full deck
100,000 puzzles in the deck
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Adaptive to your rating
COMPARE THE EXPERIENCE

Coaching built around your games. Clear, grounded, and always available.

DIY tools

Stockfish + textbooks

Engine-grounded analysis

Raw

Plain-English explanations

Personalized to your weaknesses

Available 24/7

Catches AI hallucinations

Featured

Chess Masti

Engine-grounded coaching

Engine-grounded analysis

Curated

Plain-English explanations

Personalized to your weaknesses

Available 24/7

Catches AI hallucinations

Validator

GM coach

Human expert

Engine-grounded analysis

Plain-English explanations

Personalized to your weaknesses

Available 24/7

Catches AI hallucinations

CHROME EXTENSION

One-click coaching on every Lichess & Chess.com game.

A single orange Analyze button on the sites you already play. Click it after any game — your PGN comes here automatically with the coach already talking. No copy-paste, no extra account.

Get the extensionHow it works
Lichess
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Chess.com
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Chromium-based browsers

lichess.org

♔ Game over · 1-0
Analyze with Chess Masti
NEW

One click, then we take it from there.

3,500+

Engine Elo behind every verdict

100,000

Puzzles indexed

100%

Claims fact-checked

GM-quality chess coaching. Free coaching.

Engine analysis runs in your browser with no account at all. The coach needs a free account — no card — and its requests are sent securely to Anthropic or OpenAI. Every coaching feature is free.

Start your planAnalyze a game