Ganymede

Materials
8x8 checkerboard
64 Othello disks

Play
Board starts out empty.
One player plays black the other white.
Decide who goes first in any convenient manner, turns then alternate.

On a turn, you must,

1) Place a friendly color disk in an empty space that is not orthogonally adjacent to an opponent's color disk (diagonally adjacent is fine) and

2) Move another friendly color disk already on the board any distance in a straight line orthogonally or diagonally, without jumping over other disks and ending the move in an empty space. The last disk moved must not be orthogonally adjacent to an opponent's color disks (diagonally adjacent is fine) or

3) Pass

The game ends when players pass consecutively.

Object
The player with the largest connected group of orthogonally adjacent disks, in his color, wins.