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