\begin{tikzpicture}[
  x=1cm,
  y=1cm,
  platz/.style={
    minimum width = 3cm,
    minimum height = 2cm,
    rectangle,
    draw,
  },
]
\pgfmathsetmacro\thirdRow{4}%
\pgfmathsetmacro\secondRow{8}%
\pgfmathsetmacro\firstRow{12}%

% teacher POV
\pgfmathsetmacro\leftHalf{22}%
\pgfmathsetmacro\rightHalf{0}%

\node[platz, minimum width = 6cm] at ($(\rightHalf + 1.5, \firstRow + 3)$) {Pult};

\node[platz] at (\leftHalf, \firstRow) {Christian};
\node[platz] at ($(\leftHalf + 3, \firstRow)$) {Marcel};
\node[platz] at ($(\leftHalf + 6, \firstRow)$) {};

\node[platz] at (\rightHalf, \firstRow) {};
\node[platz] at ($(\rightHalf + 3, \firstRow)$) {Aurelia};
\node[platz] at ($(\rightHalf + 6, \firstRow)$) {Greta};
\node[platz] at ($(\rightHalf + 9, \firstRow)$) {Elisa};
\node[platz] at ($(\rightHalf + 12, \firstRow)$) {Aliena};
\node[platz] at ($(\rightHalf + 15, \firstRow)$) {Isabelle};

\node[platz] at (\rightHalf, \secondRow) {Clara};
\node[platz] at ($(\rightHalf + 3, \secondRow)$) {Leana};
\node[platz] at ($(\rightHalf + 6, \secondRow)$) {Emilly};
\node[platz] at ($(\rightHalf + 9, \secondRow)$) {Lissy};
\node[platz] at ($(\rightHalf + 12, \secondRow)$) {Carina};
\node[platz] at ($(\rightHalf + 15, \secondRow)$) {};

\node[platz] at (\rightHalf, \thirdRow) {Nicolas};
\node[platz] at ($(\rightHalf + 3, \thirdRow)$) {};

\node[platz] at ($(\rightHalf + 9, \thirdRow - 2)$) {Laura};
\node[platz] at ($(\rightHalf + 12, \thirdRow - 2)$) {Emma};
\node[platz] at ($(\rightHalf + 15, \thirdRow - 2)$) {Felina};
\node[platz] at ($(\rightHalf + 18, \thirdRow - 2)$) {Lea};
\node[platz] at ($(\rightHalf + 21, \thirdRow - 2)$) {Lena};
\node[platz] at ($(\rightHalf + 24, \thirdRow - 2)$) {Max};

\node[platz] at (\leftHalf+6, 0) {Prüfungskommission};
\node[platz] at (\rightHalf, 0) {Prüfungskommission};
\end{tikzpicture}