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