# Dividing a tcolorbox into more than 2 "side by side" parts

I know that it is possible to divide a tcblowerbox into 2 parts using the \tcblower command inside \tcbitemize and using the sidebyside option. But, is there any way to divide a tcolorbox into more than 2 side by side parts?

You can try with a tcbraster where you can define as many divisions (raster columns) you need. Each tcolorbox inside the raster is independent but you can force them to have equal height. Boxes on same row are not breakable, but the raster is broken between row if it doesn't fit in one page.

\documentclass[a4paper]{article}
\usepackage[most]{tcolorbox}
\usepackage{lipsum}
\usepackage{multicol}

\begin{document}
\begin{tcbraster}[raster columns=3, sharp corners,
raster equal height, raster column skip=-.5mm]
\begin{tcolorbox}
\lipsum[2]
\end{tcolorbox}
\begin{tcolorbox}[colback=blue!30]
\lipsum[4]
\end{tcolorbox}
\begin{tcolorbox}
\lipsum[3]
\end{tcolorbox}
\end{tcbraster}
\end{document}