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