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