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