private void move789(FieldSlot player, FieldSlot enemy) {
		if (tryWin(player) != 0) {
			field.setSlot(tryWin(player), player);
		} else if (tryWin(enemy) != 0) {
			field.setSlot(tryWin(enemy), player);
		} else {
			for (int i = 1; i < 10; i++) {
				if (field.getSlot(i) == FieldSlot.EMPTY) {
					field.setSlot(i, player);
					break;
				}
			}
		}
	}