The graph T???C@?G?oA_a_R?dB?bOWgB@OD_K?KgGd@O
Unembeddable subgraph
The graph
IpD?GUbV?
is a subgraph of this graph. It is not embeddable. Hence, this
graph is not embeddable either. One possible monomorphism
of the unembeddable graph into this one, is given by: