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