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