The red animation traces the 'magic line' created by joining all points in sequence from first to last (1 to 3x3x3 - or n^3 where 'n' is the cube's order).
To switch numbers on and off press the 'n' key - click once in in the applet window first.
To rotate the pattern click and drag in the applet window.
If you press 's' a starfield is turned on or off.
Back to magic cube viewer page