Each piece has a value that is added to the value of the opponent's checker.
Counters with a value of 1 can only move one square forward.
Pawns with even numbers can move one square forward or sideways.
Counters with an odd number can move one square forward or sideways forward.
  Counters with prime numbers starting from 5 can move freely in any free direction.
The value of the pieces increases by 1 each time the opposite side of the board is reached.
The player who captures all the opponent's pawns wins.
Enjoy the game.