## TikZ: shaded cube

With just a few lines of code you can create a drawing of a cube with a 3D impression, though if it’s not really perspective or raytraced:

\begin{tikzpicture}[on grid] \shade[yslant=-0.5,right color=gray!10, left color=black!50] (0,0) rectangle +(3,3); \draw[yslant=-0.5] (0,0) grid (3,3); \shade[yslant=0.5,right color=gray!70,left color=gray!10] (3,-3) rectangle +(3,3); \draw[yslant=0.5] (3,-3) grid (6,0); \shade[yslant=0.5,xslant=-1,bottom color=gray!10, top color=black!80] (6,3) rectangle +(-3,-3); \draw[yslant=0.5,xslant=-1] (3,0) grid (6,3); \end{tikzpicture} |

This example uses the positioning tikz library.

Output screenshot:

By adding some slanted numbers we will get a Sudoku 3D cube:

TeX source code and pdf output are provided.

I’ve programmed it to answer a question posted on matheplanet.de. At first I wanted to use the matrix tikz library but it seemed to me that matrices of nodes cannot be slanted, at least I didn’t find a way.

Nice cube! Can I add it to the TikZ and PGF gallery?

Of course, I’d be glad to contribute to your excellent gallery.

Thank you Stefan. Your example is now available at http://www.fauskes.net/pgftikzexamples/sudoku-3d-cube/

Nice example, Stefan! It’s really amazing how you can get such fine graphics in TikZ with just a few lines of code. Now, the real challenge would be to solve this Sudoku puzzle in TikZ

Starting from your example (the idea of using yslant and xslant to achieve a 3D like appearance)

I have developed an alternative visualization for Pasigraphy Rhapsody, https://gitlab.com/nbatfai/pasigraphy-rhapsody/blob/master/para/docs/prelpara.lua

Some examples of usage can be found at https://tex.stackexchange.com/questions/29877/need-help-creating-a-3d-cube-from-a-2d-set-of-nodes-in-tikz/502070#502070