# junior math team problem

#### Petalon

##### New member
Can somone help me solve this problem give me any tips on how to solve it. It is for my math team and I have no Ideas or strategies on how to solve it. Thanks

#### mmm4444bot

##### Super Moderator
Staff member
Hello Petalon. Are you allowed to seek outside help with this competition question?

PS: I fixed your image. Please preview future posts. Rotate images when needed. Thanks.

#### pka

##### Elite Member
The first move must be up, U, or L, left. Now a valid path is [imath]LLURULLU[/imath]
BUT [imath]ULRULLUUL[/imath] is an invalid path. Can you explain why?

This question is asking for the number of valid paths.

Last edited by a moderator:

#### Jomo

##### Elite Member
I would think about how many ways you can from corner to corner efficiently. Each path can be done in 6 moves. Now you simple have to add two more moves to make the path inefficient.
In the given path, which moves were inefficient
Play with this idea for a bit.

#### Petalon

##### New member
Hello Petalon. Are you allowed to seek outside help with this competition question?

PS: I fixed your image. Please preview future posts. Rotate images when needed. Thanks.

Yeah this is not for the competition these are practice problems.

#### lookagain

##### Elite Member
The first move must be up, U, or L, left. Now a valid path is [imath]LLURULLU[/imath]
Petalon said:
... starts at the upper left and goes [to] the lower right ...