Knock on today's mentalfloss.com Brain Game Wednesday Wordplay challenge:

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

T R E E
_ _ _ _
_ _ _ _
_ _ _ _
_ _ _ _
_ _ _ _
_ _ _ _
_ _ _ _
W O O D

Here is an 8-step SOLUTION.

AN 8-STEP SOLUTION:

T R E E
F R E E
F L E E
F L E D
F E E D
F E N D
F O N D
F O O D
W O O D

Did you come up with a different sequence of words? Feel free to share your solution with us in the comments below. Thanks for playing!