complication
aim
analysis
ball
block
business
challenge
choice
choose
complex
complicate
concept
conceptual
confuse
creative
creativity
difficult
direction
enter
exit
find
game
goal
guide
help
idea
intelligent
labyrinth
maze
mission
problem
puzzle
right
search
situation
smart
solution
solve
strategy
success
tangle
task
toy
trace
uncertain
way
wood