11, 13, 15, 17, 21, 23 and 25 stones are not offered — the 19×19 placement rule stops at the nine star points, so we do not invent further points.

USE RECOMMENDED

TIME

Every setting here is kept on this device and is never changed when a game starts.

CONTROLS

On a touch screen the first tap previews the move; tap the same point again to place the stone.

In a handicap game Black places stones on the star points and White moves first (komi 0.5).

MASTER

Click the header speaker to cycle through four volume levels (100 · 70 · 40 · 0%). During a match, Space opens and closes the position analysis panel.

MUTE BY KIND

Only the kinds you mute go quiet; the rest use the volume above.

Changing the stones changes the pile inside the bowls too.

Letters and numbers along all four edges, on the review board as well. Not drawn when the board is too small to read them.

Turns the board 180 degrees so your stones sit at the bottom.