Settings

Saved as you change them. Strength and colour apply to your next game.

Play

Defaults

You

You play

Takes effect on your next game.

Chess experience

Pin, fork and open file left unglossed · warns you before you leave a piece undefended

Opponent

Clock

Think as long as you like, and read every note before you move. Applies to your next game.

Opponent1600 Elo

Coaching

Explain from≥10% swing · ~11 / game

Inaccuracies, mistakes and blunders.

Advancedlength is set by your experience

Length of explanation

Exact rating1600 Elo

Thinking time0.7s / move

When to speak

Held until your opponent has answered, so a note never lands on a position that is about to change.

Praise good moves

Also explain the moves you got right.

Sound

Board sound

Pieces landing, captures, check, and one chime per coach note.

Volume60%

Board

Evaluation bar

A live bar tells you that you blundered before the coach explains why.

Set

Preview

Red is the move played, green is the move the engine wanted. Board and piece colours follow FIDE's guidance for tournament equipment: dull finish, cream against ebonised walnut, and coordinates on the frame rather than inside the squares.