Your goal is to find the secret four-color code. The following colors are possible: blue, black, red, orange, purple, brown.
Some guesses have already been made. I will provide feedback for each guess made with which it is possible to unambigiously determine the secret code.

Previous Guesses:
Guess: ['black', 'purple', 'orange', 'blue']. Hint: three colors are in the secret code but in the wrong positions.
Guess: ['blue', 'blue', 'black', 'red']. Hint: one color is in the correct position.
Guess: ['blue', 'orange', 'brown', 'purple']. Hint: two colors are in the correct positions and two colors are in the secret code but in the wrong positions.
Guess: ['blue', 'orange', 'purple', 'brown']. Hint: four colors are in the secret code but in the wrong positions.
A B C D
brown, orange, brown, blue orange, brown, blue, purple purple, black, orange, orange orange, blue, brown, purple