Why does it only work on 1 wall[i]?

Alright so i'm basically making a move script and everything is working except now that I put multiple "walls" (wall = game.Workspace.walls:GetChildren), it will pass thru every single wall but 1. I want it to stop at all walls.

(This is a local script)

plr = game.Players.LocalPlayer
mouse = plr:GetMouse()
arrow = game.Workspace.point
move = nil

wall = game.Workspace.walls:GetChildren()




function CheckUp()
		local b = Instance.new("Part", game.Workspace)
	b.Name = "FINDER"
	b.Anchored = true
	b.CFrame = arrow.CFrame + Vector3.new(4,0,0)
	for i,v in pairs(wall) do
	if b.CFrame.X == wall[i].CFrame.X then
		move = false
		print("Wall infront")
	else 
		move = true
	end
	end--for end
end --function end

mouse.KeyDown:connect(function(key)
	if key == "w" then
		print("w")
		CheckUp()
		if move == false then
			arrow.CFrame = arrow.CFrame + Vector3.new(0,0,0)
		else
			arrow.CFrame = arrow.CFrame + Vector3.new(4,0,0)
		end


	end
end)

On line 17, if you put "==" that means you want it to be that exact number for the two objects though it sometimes is different by 0.01 or 0.1 or something like that so maybe having a >= or a <= would help.

Also on like 30-34 why not just do if move == true then..... because your checking if its false and if it is your not doing anything your leaving it in its spot.

also I noticed your adding instead of multiplying the CFrame and Vector3 I highly recommend you multiply.

Here is the wiki post about CFrames, scroll to where it says Operators and read about it :) http://wiki.roblox.com/index.php?title=CFrame

-- Edit:

one other note is that if you have a lot of children for the "wall" then I recommend you add some sort of interval for the loop so you can add a wait() maybe like after x amount of checks it waits, because if you have too many children it will try to do it quickly and that can be really tough on some computers.