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