Your goal is to find the secret four-color code. The following colors are possible: blue, orange, red, purple, brown, yellow.
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: ['purple', 'red', 'blue', 'orange']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['blue', 'orange', 'brown', 'brown']. Hint: three colors are in the correct positions.
Guess: ['blue', 'blue', 'orange', 'brown']. 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
blue, orange, brown, yellow yellow, blue, yellow, purple brown, purple, orange, red red, blue, orange, brown