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