OFFSET
0,2
COMMENTS
Gives the number of possible chess games where both sides start without pawns.
Does not include games which end in fewer than n plies.
The initial terms exceed the corresponding terms in A048987, but this should eventually reverse and we should have A285877(n) <= A048987(n) for large enough n.
Initial terms computed using the Chesspresso engine.
CROSSREFS
KEYWORD
nonn,hard,more,fini
AUTHOR
Sean A. Irvine, Apr 28 2017
STATUS
approved