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