In today's world, more people probably play solitaire by clicking a mouse than by flipping cards, but today's mentalfloss.com Brain Game Wednesday Wordplay challenge is old-school. Good luck!
By changing one letter in each step to form English words, and leaving all other letters in their original positions, convert CARD into FLIP in the fewest possible steps.
C A R D
_ _ _ _
_ _ _ _
_ _ _ _
_ _ _ _
_ _ _ _
F L I P
Here is one 6-step SOLUTION.
A 6-STEP SOLUTION:
C A R D
L A R D
L A... READ ON