Its 30 years of the Rubiks cube! To celebrate this fact the Dotmasters bring you its evolution, the digitally improved and encoded QRubiks cube. It's a classic with a twist, at the height of the cube craze it was estimated that 1/5 of the world owned one.

If you missed your chance in our previous completion to win one of these devilishly hard QRubiks cubes. Now's your chance to buy one! As they were so popular we've decided to issue a second edition , limited to fifty there is a different hidden message concealed with in QR graphic on this unique version of the Rubiks cube.

These are original Rubiks Cubes and come complete with the original Rubiks logo.

As an added incentive the first person to crack the code and send them to me via the blog contact form here will win a 6' x 2' Dotmaster canvas check it out here

A full set of instructions for cracking the code can be found here

For information on QR tags click here

All cubes come with a certificate of authentication stating the edition number

Priced £18

With at Postage £3