Remove 'rts' parameter from the functions
#checkmate?, #getPotentialKingAttacks, #in-check?, and
#vulnerable-positions-for.
Remove the 'rts' parameter from the
function #getPotentialKingAttacks.
Remove the 'rts' parameter from the
function #getPotentialKingAttacks.
Make insignificant change.
Add helper fn #boolean?; amend the function
#bounded? so that it only returns true for bounded integers.
Remove 'rts' arguments from calls to
the fns #checkmate? and #in-check?.
Add minor change to spec for y.bounded?.