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