QUESTION: Laptop communication

[Laptop guy]

Hello group,

If I buy two of these laptops:

http://www.amazon.ca/N61JQ-X1-16-In...TF8&coliid=I1A31EV40V4LV0&colid=2K7YDB2VB4JNA

http://ca.asus.com/product.aspx?P_ID=ZfpnPRZ5UxVOtrHJ

to play computer chess tourneys, will they be able to communicate with each other without cables? Or will I have to buy this cable:

http://www.amazon.com/dp/B002RL8VEC

Thank you