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