Holzfaeller

turtle.forward()
turtle.forward()
turtle.forward()

local function baumFaellt()
  turtle.dig()
  turtle.forward()
  while turtle.detectUp() do
    turtle.digUp()
    turtle.up()
  end
  while not turtle.detectDown() do
    turtle.down()
  end
end

turtle.turnLeft()
baumFaellt()

for i=1,9 do

  turtle.back()
  turtle.place(13)
  turtle.turnRight()
  turtle.turnRight()
  baumFaellt()

  turtle.back()
  turtle.place(14)
  turtle.turnLeft()
  turtle.forward()
  turtle.forward()
  turtle.turnLeft()
  baumFaellt()

end

turtle.back()
turtle,place(13)
turtle.turnRight()
turtle.turnRight()
baumFaellt()

--

turtle.turnRight()
turtle.turnRight()
turtle.back()
turtle.place(14)
turtle.turnRight()
turtle.turnRight()
baumFaellt()
turtle.forward()
turtle.turnRight()
turtle.turnRight()
turtle.place(15)

--

for i=1,9 do

  turtle.turnRight()
  turtle.turnRight()
  baumFaellt()
  turtle.back()
  turtle.place(16)
  turtle.turnRight
  turtle.forward()
  turtle.forward()
  turtle.turnRight()
  baumFaellt()
  turtle.back()
  turtle.place(15)

end

turtle.turnRight()
turtle,turnRight()
baumFaellt()
turtle.back()
turtle.place(16)
turtle.turnRight()
turtle.forward()
turtle.forward()
turtle.forward()
turtle.turnRight()
turtle.forward()
turtle.forward()
turtle.forward()
turtle.forward()
turtle.forward()
turtle.turnRight()