The HouseGraph command creates the house graph.

The house graph is a planar graph with 5 vertices and 6 edges, so named for its resemblance to a drawing of a house.

$\mathrm{with}\left(\mathrm{GraphTheory}\right)\:$

$\mathrm{with}\left(\mathrm{SpecialGraphs}\right)\:$

$G≔\mathrm{HouseGraph}\left(\right)$

$G≔\mathrm{Graph\; 1:\; an\; undirected\; graph\; with\; 5\; vertices\; and\; 6\; edge(s)}$

$\mathrm{ChromaticNumber}\left(G\right)$

$3$

"House graph", Wikipedia. http://en.wikipedia.org/wiki/House_graph

The GraphTheory[SpecialGraphs][HouseGraph] command was introduced in Maple 2023.

For more information on Maple 2023 changes, see Updates in Maple 2023.