Maze crap

-- Maze generation --
local MZ = {}
SZ = 100
for x = 1,SZ do
    for y = 1,SZ do
        local N = {}
        N.X = x
        N.Y = y
        N.Taken = false
        table.insert(MZ,N)
    end
end
for i,v in pairs(MZ) do
    Sides = {Top = MZ[i-SZ],
        Bottom = MZ[i+SZ],
        Front = MZ[i+1],
        Back = MZ[i-1],
        TopRight = MZ[i-(SZ-1)],
        TopLeft = MZ[i-(SZ+1)],
        BottomLeft = MZ[i+(SZ-1)],
        BottomRight = MZ[i+(SZ+1)]}
    if Sides.Top and Sides.Bottom and Sides.Front and Sides.Back and Sides.TopRight and Sides.TopLeft and Sides.BottomLeft and Sides.BottomRight then
        local N = math.random(1,8)
        local G = Sides[N]
        if G and G.Taken == false then
            v.Taken = true
        end
        local TK = true
        for i,v in pairs(Sides) do
            if v.Taken then
                TK = false
            end
        end
        v.Taken = TK
    end
end
GS = 5
Player=game.Players.LocalPlayer
PlayerGui=Player:WaitForChild("PlayerGui")
Screen=Instance.new("ScreenGui",PlayerGui)
for i,v in pairs(MZ) do
    if v.Taken then
        local S = Instance.new("Frame",Screen)
        S.Size = UDim2.new(0,GS,0,GS)
        S.Position = UDim2.new(0,v.X*GS,0,v.Y*GS)
    else
        local S = Instance.new("Frame",Screen)
        S.Size = UDim2.new(0,GS,0,GS)
        S.Position = UDim2.new(0,v.X*GS,0,v.Y*GS)
        S.BackgroundColor3 = Color3.new(0,0,0)
    end
end