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