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