Multirow with strike through?

Question

Could somebody give me a hint, why the \multirow doesn't work as it should?

\documentclass{article}
\usepackage{multirow}
\begin{document}

\begin{tabular}{c|c|c|c|c|c|}
\emph{step} & 0 & 1 & 2 & 3 & 4 \\ \hline
1. step  &  &  &  &3  &   \\ \hline \hline
\multirow{2}{*}{2nd step}  & 6 &  & 2 &3  &   \\ \hline
            &  &  &  &8  &   \\ \hline \hline

\end{tabular}

\end{document}

Answer 1

\hline is not aware of the multirow, use \cline instead:

\documentclass{article}
\usepackage{multirow}
\begin{document}

\begin{tabular}{c|c|c|c|c|c|}
\emph{step} & 0 & 1 & 2 & 3 & 4 \\ \hline
1. step  &  &  &  &3  &   \\ \hline \hline
\multirow{2}{*}{2nd step}  & 6 &  & 2 &3  &   \\ \cline{2-6}
            &  &  &  &8  &   \\ \hline \hline

\end{tabular}

\end{document}

Answer 2

You need to remove the horizontal line between the two cells, using \cline{2-6} instead of \hline.

\documentclass{article}
\usepackage{multirow}
\begin{document}

\begin{tabular}{c|c|c|c|c|c|}
\emph{step} & 0 & 1 & 2 & 3 & 4 \\ \hline
1. step  &  &  &  &3  &   \\ \hline \hline
\multirow{2}{*}{2nd step}  & 6 &  & 2 &3  &   \\ \cline{2-6}
            &  &  &  &8  &   \\ \hline \hline

\end{tabular}

\end{document}

---

However, I would recommend to get rid of both the vertical lines and the multirow package:

\documentclass{article}
\usepackage{booktabs}
\begin{document}

\begin{tabular}{lcccccc} \toprule
 & 0 & 1 & 2 & 3 & 4 \\ \midrule[\heavyrulewidth]
\bfseries 1st step
 &   &   &   & 3 &   \\ \midrule
\bfseries 2nd step
 & 6 &   & 2 & 3 &   \\ \cmidrule{2-6}
 &   &   &   & 8 &   \\ \bottomrule
\end{tabular}

\end{document}