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