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