Pick the rating you want to reach. Instead of the sterile engine line, Chesserino shows you the move a player at that level would actually go for. Once you know what 1300s see, 1300 stops being a wall.
Sound and safe, supports e4, but a touch passive.
Every suggestion comes with a plain-language explanation of why it’s good or bad, written the way a patient coach would say it. It reads the position on your machine (no AI cloud, nothing sent anywhere) and speaks your language.
You’re better developed, so opening lines helps you, not your opponent. This is the textbook moment to push and take the initiative.
So Standard mode is just a rating dial and a board, while Pro opens the full workbench in a native macOS-style window. This preview mirrors the real app. Flip the switch and you know exactly what you get.
Each panel does one job. Everything runs against the engine on your machine, and none of it syncs anywhere, because there’s no server to sync to.
Every move you play is graded as it happens. Blunders, inaccuracies and best moves land on the Learn board in real time.
The hundred openings you will actually meet, plus your own lines — practised move by move against a board that refuses wrong moves.
Every position and review you have ever looked at. Searchable, offline, yours.
Choose precise, human-like or variant analysis, with depth, line count and playing strength under your control.
Board themes, arrow styles, light or dark. Set it once, forget about it.
Toggle the overlay, step the engine or jump into review without touching the mouse.
Choose precise best-move analysis, support for chess variants, or human-like play at your rating. Every option runs locally and stops when you close the app.
Finds the strongest continuation when you want the most precise answer.
Understands Chess960 and other variants with the same on-device privacy.
Predicts the kind of move a real player at your selected rating would choose.
The extension reads the position from the page and hands it to the app on your machine. It checks what kind of page you’re on first: a live rated game locks everything except the eval bar, while your own analysis gets the full toolkit.
During a live, rated game suggestions stay locked. You get the eval bar and nothing else, so there is nothing to copy.
Analysis and puzzle pages get arrows, candidate lines and the human-strength suggestion.
A finished game or a pasted PGN is your study time. Everything is unlocked.
Native, local-first, and quiet. The engine, coach and review all run on your machine.
The account is free. Make one and the coach works on your first five moves right away. When you want the full app, buy a chunk of time. It unlocks the moment you pay and simply runs out when it’s over. No lock-in, no cloud, same features in every tier.
Chesserino is a small indie project from Germany. No investors, and no analytics script watching you read this. We built it because engine analysis never felt human to us. We wanted to see the moves a player at your level would actually consider, and understand why. If something’s broken or you’re missing a feature, just write us. We read everything ourselves.