Label the vaults 1 to 4 from left to right.

Let {x(1), x(2), x(3), x(4).....} be a strategy i.e. the person (Mina or the Vampire) will be at vault x(i) on day i

Mina's strategy - {3, 3, 2 , 2, 3}

Vampire's Possible Strategies:

No matter where the Vampire starts, he will be caught.

Did I miss anything?

## Alternative Solution

Label the vaults 1 to 4 from left to right.

Let {x(1), x(2), x(3), x(4).....} be a strategy i.e. the person (Mina or the Vampire) will be at vault x(i) on day i

Mina's strategy - {3, 3, 2 , 2, 3}

Vampire's Possible Strategies:

No matter where the Vampire starts, he will be caught.

Did I miss anything?