Engine
Higher depth searches further ahead but takes longer to analyze each position.
Settings
Explanations
Controls how detailed "Why this move?" reads on the Play page.
Board threats
Highlights your own pieces that are currently under attack, weighted by how urgent each one is.
Show on board
Move announcements
Spoken aloud by your browser's built-in voice as moves happen — no audio files, works offline.
Your browser doesn't support speech synthesis, so these settings won't have any effect here.
Sound
100%
1.2
1.1
This is a guess at what sounds lively rather than flat — there's no "correct" pitch/speed, so tune these by ear with the button below.