Abstract graph corresponding to bridges of Königsberg by <a href="https://en.wikipedia.org/wiki/User:Booyabazooka" class="extiw" title="en:User:Booyabazooka">Booyabazooka</a>
<div style="display:inline-block;padding:0 3px;background-color:#BDC"><a href="//commons.wikimedia.org/wiki/File:K%C3%B6nigsberg_graph.png" title="File:Königsberg graph.png"><b>Original: </b></a></div> <div style="display:inline-block;padding:3px 0;"><a href="https://en.wikipedia.org/wiki/User:Mark_Foskey" class="extiw" title="en:User:Mark Foskey">Mark Foskey</a>  and <a href="https://en.wikipedia.org/wiki/User:Booyabazooka" class="extiw" title="en:User:Booyabazooka">Booyabazooka</a></div> <div style="display:inline-block;padding:0 3px;background-color:#CCF">Vector: </div> <div style="display:inline-block;"><a href="//commons.wikimedia.org/wiki/User_talk:Riojajar~commonswiki" title="User talk:Riojajar~commonswiki">Riojajar</a></div>
2006-06-08
Own work based on: <a href="//commons.wikimedia.org/wiki/File:K%C3%B6nigsberg_graph.png" title="File:Königsberg graph.png">Königsberg graph.png</a>