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