solitaire-possible-move
solitaire-possible-move is a compiled Lisp function in `solitaire.el
'.
(solitaire-possible-move MOVESYMBOL)
Check if a move is possible from current point in the specified direction.
MOVESYMBOL specifies the direction.
Returns either a string, indicating cause of contraindication, or a
list containing three numbers: starting field, skipped field (from
which a stone will be taken away) and target.