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