Alfil can only reach one-eighth of the squares on the chessboard. The eight alfils (shown by inverted bishops) can only move on squares of one color (either red, orange, yellow, green, cyan, blue, violet, or magenta).
<a href="//commons.wikimedia.org/wiki/User:Dmitry_Fomin" title="User:Dmitry Fomin">Dmitry Fomin (Дмитрий Фомин)</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>