The selected green rotor and the 4 lines around it show which pieces will be rotated if you click on the button labeled + (clockwise), or - (counterclockwise). Click on the scramble button and the pieces will be mixed in random order (or in positions of your choice). A small puzzle with 9! (9 factorial) or 362, 880 possible permutations.

Includes also Taktix7, Tetrad, Prizm and Elementary games (zip file) for playing on PC with any version of Windows®

J U K O is part of a series of games developed by RJHgames, copyrighted as the Rigid Rotor © series.

An example is shown below: Rigid Rotor [8 x 8]

JUKO (strategy puzzle)

J U K O, or the “game of 9", is an original concept which ‘circles the square!’ The idea is quite simple: use the four available rotors, which are positioned between the pieces to rotate the numbers around that point. 

The objective of the game is to start from a scrambled position and return all 9 numbers in their correct numerical order in the 3 rows (as they appear in the game logo). Various options in the game menu allow to change the look and feel of the game.

An old Chinese tiles puzzle "revived" by RJH games for use on PC.