Click the center of a 3×3 group, then a blue destination. Keep your last ring whole.

Ivory is thinking…

ARROWS + ENTER OR CLICK / TAP · JADE MOVES FIRST

Jade

Jade captures 0

Ivory captures 0

Legal center destination

Capture: group stops here

A ring is eight stones around an empty center. Move the whole ring; lose every ring and the game ends.

The small rulebook

Your piece is any 3×3 region containing only your stones and at least one stone off-center.
Each off-center stone permits motion in its direction. A center stone allows any distance; an empty center limits motion to three cells.
The entire 3×3 footprint stops at the first occupied region and clears every stone it overlaps — even your own.
Stones crossing the board edge vanish.
Keep at least one complete ring. This interface hides moves that destroy your last ring. If no safe move exists, you lose.
The quick Ring duel is an original miniature starting position; Classic uses the standard 43-stone setup.