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