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