Displaying results using chessboard

Question

When displaying results of a game using chessboard, a mysterious Z shows up. In the following code, I would like to display the result as "1-0", but it shows up as "Z1-0."

How can I avoid this?

\documentclass{amsart}
\usepackage{chessboard}
\usepackage{skak}
\begin{document}
\newgame
\mainline{1. e4 1-0}
\showboard
\end{document}

Answer 1

Put the result outside of the \mainline, say \mainline{1. e4} \textbf{[1-0]}. I think the chessboard has no support for typesetting results.