Q: Can you tile ![alt text][1] 

with  ![alt text][2]
?

![Tiling proof][3]


  [1]: http://www.cl.cam.ac.uk/~mj201/images/mutilated-chess-board2.gif
  [2]: http://www.stewart.hinsley.me.uk/Fractals/Scripts/Polyplet.php?r0=3
  [3]: http://numberwarrior.wordpress.com/files/2009/12/tilingproof.png