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