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