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Chessboard package: LSBC4 font, decoration behind piece?

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Subject: Chessboard package: LSBC4 font, decoration behind piece?
From: olav.lan...@gmail.com (Olav Landsverk)
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by: Olav Landsverk - Sun, 30 Jan 2022 03:13 UTC

Hi, I have the following MWE

\documentclass{standalone}
\usepackage[utf8]{inputenc}
\usepackage[LSBC4, T1]{fontenc}
\usepackage{xcolor}
\usepackage{chessboard}
\definecolor{darkfield}{RGB}{181, 136, 99}
\definecolor{lightfield}{RGB}{240, 217, 181}
\setchessboard{
boardfontencoding=LSBC4,
blackfieldmaskcolor=darkfield,
whitefieldmaskcolor=lightfield,
setfontcolors,
showmover=false}
% \begin{document}
\setchessboard{
pgfstyle={[fill]circle},
padding=-0 ex,color=red}
\chessboard[
markfields={e4},
setwhite={Re4}]
\chessboard[
backfields={e4},
setwhite={Re4}]
\end{document}

which produces https://imgur.com/a/0hDQIAi

However, I need the red circle to be behind the rook (but above the chessboard). How can I achieve this? It's important to keep the chosen layout of the chessboard.

Re: Chessboard package: LSBC4 font, decoration behind piece?

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From: new...@nililand.de (Ulrike Fischer)
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Subject: Re: Chessboard package: LSBC4 font, decoration behind piece?
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by: Ulrike Fischer - Sun, 30 Jan 2022 16:57 UTC

Am Sat, 29 Jan 2022 19:13:01 -0800 (PST) schrieb Olav Landsverk:

> Hi, I have the following MWE

> However, I need the red circle to be behind the rook (but above
> the chessboard). How can I achieve this? It's important to keep
> the chosen layout of the chessboard.

Well in your encoding the board background is part of the piece. So
it is not trivial to sneak something between board and piece. You
can try something like the following but be aware that the circle
should not be larger than the square as the following square would
overlap them

\documentclass{standalone}
\usepackage[LSBC4, T1]{fontenc}
\usepackage{xcolor}
\usepackage{chessboard}
\definecolor{darkfield}{RGB}{181, 136, 99}
\definecolor{lightfield}{RGB}{240, 217, 181}
\colorlet{circlecolor}{white}
\setchessboard{
boardfontencoding=LSBC4,
blackfieldmaskcolor=darkfield,
whitefieldmaskcolor=lightfield,
blackpiecemaskcolor=red,
setfontcolors,
showmover=false}
% \usepackage{tikz,etoolbox}

\begin{document}
\makeatletter
\newbool{showcircle}
\renewcommand\cfss@composefmpcolorchar[4]{%range layer. fm, p
\makebox[0pt][l]{%
\csname cfss@#1fieldmaskcolor\endcsname#2}%
\ifbool{showcircle}{%
\tikz[overlay]{\fill[circlecolor] (0.5em,0.5em)
circle[radius=0.5em]}}%
{}%
{\csname cfss@#3piececolor\endcsname#4}}%
\makeatother

\chessboard[
emphstyle={\booltrue{showcircle}},
emphfield=f5,

emphstyle={\booltrue{showcircle}\colorlet{circlecolor}{red}},
emphfield=e4,

emphstyle={\booltrue{showcircle}\colorlet{circlecolor}{green}},
emphfield=c6,
setwhite={Re4,Nf5,kc6,Qd5}]
\end{document}

--
Ulrike Fischer
https://www.troubleshooting-tex.de/

I wish you humans would leave me alone.

computers / comp.text.tex / Re: Chessboard package: LSBC4 font, decoration behind piece?

Subject	Author
Chessboard package: LSBC4 font, decoration behind piece?	Olav Landsverk
Re: Chessboard package: LSBC4 font, decoration behind piece?	Ulrike Fischer