One hundred cards numbered 1 to 100 are laid out on the table.
Players alternate removing cards until a player cannot make a move.
The rules for moves are :
1. Players alternate moves and removed cards are not replaced.
2. Apart from opening move, each number chosen must be a factor or
multiple of the previous number.
3. The first player unable to choose a card loses.
4. The first card must be an even number.