Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multigraphs from crossword puzzle grid designs   Crossword puzzles lend themselves to mathematical inquiry. Several authors
have already described the arrangement of crossword grids and associated
combinatorics of answer numbers. In this paper, we present a new
graph-theoretic representation of crossword puzzle grid designs and describe
the mathematical conditions placed on these graphs by well-known crossword
construction conventions.

8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci