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