cmail
X Window System Chess Board
RUN apt-get update && \
apt-get install -y xboard
RUN apt-get update && \
apt-get install -y xboard
RUN pacman -S --noconfirm xboard
RUN apt-get update && \
apt-get install -y xboard
RUN dnf install -y xboard
RUN apt-get update && \
apt-get install -y xboard