```ruby
require "tic_tac_toe/version"

module TicTacToe
  # Your code goes here...
  class Board
    def pos coords
      " "
    end

    def move coords, mark

    end
  end
end
```

Change variable name passed to methods
user
```ruby
require "tic_tac_toe/version"

module TicTacToe
  # Your code goes here...
  class Board
    def pos index
      " "
    end

    def move index, mark

    end
  end
end
```
assistant