Your goal is to find the secret four-color code. The following colors are possible: blue, green, red, pink, brown, yellow.
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: ['yellow', 'green', 'pink', 'blue']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['blue', 'red', 'green', 'red']. Hint: three colors are in the secret code but in the wrong positions.
Guess: ['green', 'blue', 'red', '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
blue, pink, yellow, yellow pink, yellow, blue, red red, yellow, brown, brown red, blue, brown, green