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