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