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