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