Can a try be scored on top of a grounded player?

On the rugby field hexes that are split in half by the goal lines, are these spaces considered within the in-goal area?

YES. Scoring on these spaces could result in a try, however, a TMO roll would have to be made before the try is awarded

On the rugby field, hexes that are split in half by the 22m lines, are these spaces considered within the 22m area?

YES. A player or ball placed on these spaces is considered to be within the 22m area.

What if I want to do something not specifically covered in the Crash Tackle^TM rulebook?

Crash Tackle^TM is able to mimic most real rugby union situations, so if there is a debate simply think of how a real game of rugby would be played and apply this to the Crash Tackle^TM board game.