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