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