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