Catch me if you can

This is an abstract game a little similar to checkers.
Theme is rabbits and hunters, but that is of no meaning in the game - rabbits can kill hunters as well as the other way around.

Each player has a set of blocks numbered from 1 through 7, which is hidden from his opponent.
The number represents the amount of spaces the piece can move.
The board consists of a grid of 9*7 squares.

Goal of the game is to capture opposing pieces. In order to do this, you have to enclose an opponent's block in a straight line between two of your own blocks. These blocks have to sport consecutive numbers, e.g. 2-3 order 4-5.

The game is over, if one of the players has no such pairs left. The player who can no longer make captures loses.