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