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