Question 1

What is Chessyi?

Accepted Answer

Chessyi is professional chess study software that runs in your browser. It combines local Stockfish analysis, 12+ position heatmaps, piece-level attack/defense visualization, opening practice, and 1.9 million master games, purpose-built for serious learners who want to understand positions deeply, not just see engine scores.

Question 2

Is Chessyi free?

Accepted Answer

Yes. You can create a free account to save games and sync across devices. Core analysis, opening drills, the game library, and engine sparring are available without paid tiers.

Question 3

Do I need to download Stockfish?

Accepted Answer

No. Stockfish loads automatically in your browser. Analysis runs on your device for speed and privacy.

Question 4

How is Chessyi different from Chess.com or Lichess?

Accepted Answer

Chessyi focuses on deep analysis and study rather than online matchmaking. Unique tools include 12+ heatmap overlays, piece-level analysis, 1.9M bundled master games, and a local Stockfish engine, combined on one board without switching apps.

Question 5

Can I import my games from other sites?

Accepted Answer

Yes. Paste or upload standard PGN files from Chess.com, Lichess, tournaments, or any PGN source.

Question 6

Does Chessyi work on mobile?

Accepted Answer

Yes. Chessyi is a responsive web app that works in mobile browsers with touch controls and the full analysis toolkit.

Question 7

Is my opening preparation private?

Accepted Answer

Engine analysis runs locally in your browser. Only positions you explicitly save are stored in your cloud account.

Question 8

How many opening lines can I practice?

Accepted Answer

Over 70 named opening lines with move validation, plus access to 166 opening game collections for real master examples.

Frequently asked questions

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