Green chess knight symbol from the Xogos da Meiga chess icons family. It presents a horse head looking left. Drawn in Inkscape for a 50 x 50 mm square and a 1 mm stroke width, with a #00d000ff green fill.
<a href="//commons.wikimedia.org/wiki/User:Iagocasabiell" title="User:Iagocasabiell">Iago Casabiell González</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>