kirkman's schoolgirl problem
Word Rarity
Very rare
Frequency: Zipf frequency 1.55 in modern English
47
Scrabble Score
25
Letters
4
Syllables
15
Unique Chars
Meaning
name
A problem in combinatorics, in which 15 schoolgirls go walking three abreast for seven days in succession, and must be arranged so that no two walk abreast more than once.