Logic Masters Deutschland e.V.

A 3D suguru which forms a dice
and can only be solved taking connecting sides into account

Rules:
Classic Suguru with a twist
1. Each region must contain the digits 1 to size of region
2. No same digit appears in any neighboring cell, not even diagonally.
3. You should consider the shape to be 3D, with cells meeting on edges to be also neighboring cells

to solve using Penpa: Penpa Link