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