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