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<level title="Eulerian Cycles" description="Every graph where all the vertices have an even degree has an Eulerian cycle.;An Eulerian cycle is a cycle through the graph that goes through each edge exactly once.;Right-click vertices in the order of an Eulerian cycle.;Press E to cancel your cycle." objective="Find an Eulerian cycle."/>
<global-vertex-protections protect="acd"/>
<global-edge-protections protect="acd"/>
<colors>
<color color="#FF0000" name="red"/>
</colors>
<graph>
<vertex x="300" y="400" id="top-l"/>
<vertex x="400" y="350" id="top-m"/>
<vertex x="500" y="400" id="top-r"/>
<vertex x="300" y="500" id="bot-l"/>
<vertex x="400" y="550" id="bot-m"/>
<vertex x="500" y="500" id="bot-r"/>
<edge v1="top-l" v2="top-r"/>
<edge v1="top-l" v2="bot-l"/>
<edge v1="top-l" v2="bot-m"/>
<edge v1="top-l" v2="bot-r"/>
<edge v1="top-m" v2="bot-l"/>
<edge v1="top-m" v2="bot-r"/>
<edge v1="top-r" v2="bot-l"/>
<edge v1="top-r" v2="bot-m"/>
<edge v1="top-r" v2="bot-r"/>
<edge v1="bot-l" v2="bot-r"/>
</graph>
<rules/>
<cycle points="0">
<edge color="any" op="+" val="1"/>
</cycle>
<values>
<var id="points" val="0"/>
<var id="objective" val="E"/>
</values>
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