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