OFFSET
0,2
COMMENTS
Duplicate captures (viz. the situation where a king can capture the same pieces in different directions) are counted separately.
REFERENCES
C. A. Pickover, The Math Book, Sterling, NY, 2009; see p. 512.
LINKS
A. Bik, Aart's Computer Checkers Page
M. Fierz, CheckerBoard
I. Korshunov, Title?
Jonathan Schaeffer et al., Checkers is solved, Science, Vol. 317. no. 5844, pp. 1518-1522, Sep 14 2007.
CROSSREFS
KEYWORD
nonn,nice
AUTHOR
Jonathan Schaeffer (jonathan(AT)cs.ualberta.ca), Dec 27 2007
EXTENSIONS
a(12)-a(20) computed by Aart Bik and sent by Richard Bean, Sep 18 2009
a(21)-a(26) computed by Aart Bik, with last two completed Sep 18 2012. Rein Halbersma was first to compute a(22). Murray Cash confirmed Aart's a(23) and a(24) results.
a(27)-a(28) first computed by Aart Bik, Sep 2012. Paul Byrne confirmed Aart's a(23)-a(28).
a(29) from Murray Cash, Nov 20 2020
STATUS
approved