Problems & Puzzles: Collection 20th Coll.20th010. Find the core of a magic cube On March 29 2018, Natalia Makarova wrote: It is required to complete the concentric magic cube of order 6 from different primes with the magic constant S = 5040, placing the magic cube of order 4 with the magic constant S = 3360 inside. See the illustration (Fig.1)
It is allowed to change the border, but with the preservation of the magic constants S = 3360 and S = 5040. Q. Send your solution. 




