The goal of each mentalfloss.com Brain Game challenge is to get your noggin active. This week's Wednesday Wordplay puzzle is a word ladder with just that in mind. Here you go:

By changing one letter in each step to form English words, and leaving all other letters in their original positions, convert BRAIN into THINK in the fewest possible steps.

B R A I N
_ _ _ _ _
_ _ _ _ _
_ _ _ _ _
_ _ _ _ _
_ _ _ _ _
_ _ _ _ _
T H I N K

Here is a 7-step SOLUTION.

A 7-STEP SOLUTION:

B R A I N
T R A I N
T R A I T
T R A C T
T R A C K
T R I C K
T H I C K
T H I N K

Did you come up with a different sequence of words (shorter, longer, or the same length)? Feel free to share your solution with us in the comments below. Thanks for playing!