1. bookVolume 7 (2020): Issue 13 (November 2020)
Journal Details
License
Format
Journal
First Published
16 Apr 2016
Publication timeframe
2 times per year
Languages
English
access type Open Access

Counting Clues in Crosswords

Published Online: 18 Sep 2020
Page range: 1 - 7
Journal Details
License
Format
Journal
First Published
16 Apr 2016
Publication timeframe
2 times per year
Languages
English

We consider different ways to count the number of clues in American-style crossword puzzle grids. One yields a basic parity result for symmetric square grids. Another works efficiently even for non-symmetric grids that are already numbered. We further discuss the upper limit on the number of clues in a crossword puzzle with no 2-letter answers, and open questions are given. As a bonus, a mathematically-themed crossword puzzle is included!

[1] “Cross Purposes”. In: Futility Closet (2015), published electronically at https://www.futilitycloset.com/2015/02/09/cross–purposes–3.Search in Google Scholar

[2] K. K. Ferland. “Record Crossword Puzzles”. In: The American Mathematical Monthly 121.6 (2014), pp. 534–536.Search in Google Scholar

[3] K. K. Ferland and R. W. Pratt. “Maximal Crossword Grids”. In: Journal of Combinatorial Mathematics and Combinatorial Computing (To Appear).Search in Google Scholar

[4] The On-Line Encyclopedia of Integer Sequences. published electronically at https://oeis.org/A243826.2014.Search in Google Scholar

Recommended articles from Trend MD

Plan your remote conference with Sciendo