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