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