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