## Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

### Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

# Function move() doesn't pass through checking

Hey, I can not understand why this code doesn't pass checking. Examples work correctly.

movement.py
```# EXAMPLES:
# move((1, 1, 10), (-1, 0)) => (0, 1, 10)
# move((0, 1, 10), (-1, 0)) => (0, 1, 5)
# move((0, 9, 5), (0, 1)) => (0, 9, 0)

def move(player, direction):
x, y, hp = player
dx, dy = direction

if (x + dx < 0) or (x + dx > 9) or (y + dy < 0) or (y + dy > 9):
hp -= 5
else:
x += dx
y += dy

return x, y, hp
```

Oh, I found the problem. Maby it will help somebody.

It was due to tabs and spaces. I had:

(space)(space)(space)(space)x, y, hp = player

(space)(space)(tab)dx, dy = direction

Indents were the same and visually not visible