#960 chess position generator
def assignment
	positions = [1,3,5,7]
	temppos = [2,4,6,8]

	assignments = {}

	positions.shuffle!
	temppos.shuffle!

	assignments['B1'] = positions.pop
	assignments['B2'] = temppos.pop

	positions = positions + temppos
	positions.shuffle!

	assignments['Q'] = positions.pop
	assignments['N1'] = positions.pop
	assignments['N2'] = positions.pop

	positions.sort!

	assignments['K'] = positions[1]
	assignments['R1'] = positions[0]
	assignments['R2'] = positions[2]

	positions = String.new
	pieces = String.new

	assignments.sort_by { |k, v| v}.each do |k, v|
		pieces << k[0] + " "
		positions << v.to_s + " "
	end

	#puts positions
	return pieces
end

puts assignment