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