Your goal is to find the secret four-color code. The following colors are possible: brown, red, purple, orange, black, blue.
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: ['blue', 'orange', 'red', 'black']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['brown', 'brown', 'orange', 'blue']. Hint: two colors are in the correct positions.
Guess: ['brown', 'purple', 'orange', 'red']. Hint: one color is in the correct position and two colors are in the secret code but in the wrong position.
Guess: ['red', 'brown', 'orange', 'orange']. Hint: two colors are in the correct positions.
A B C D
black, brown, orange, purple blue, blue, red, brown blue, blue, red, black purple, red, blue, brown