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