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