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