3d
abstract
achievement
approach
arrow
centre
challenge
complex
complexity
complicated
concept
conceptual
decision
difficult
difficulty
direct
direction
employee
entrance
exit
figure
find
game
goal
hard
high
human
indoors
labyrinth
line
maze
nobody
paths
pattern
problem
puzzle
red
representation
right
shortcut
solution
solve
solved
solving
straight
strategy
target
walking
way