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