Indigo V4 puzzle is a challenging and beautifully crafted addition to the advanced line-up, designed by Shane Seward, a very good friend of puzzle inventor Chris Pitt and a fantastic puzzle enthusiast. 
 
Indigo is the perfect next step for those who enjoyed solving Bronze and Orange; it’s a very enjoyable puzzle to explore, and figuring out how it works will give you a great sense of accomplishment. It will offer a wonderful mental exercise, hours and hours of worthwhile play, and a magnificent core; add it to your collection today...
 
Please note: the V4 operates the same as the V3, however it features the VAULTMAZE drawbar and certificate bar combo as well as a body and nut, it can all be made in-house except for the sleeves and it will be solved and reassembled just like the originals.