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