Bob Lee's photostream  

A visualization of a random hand (15 dominoes) from Mexican Train. From this you can tell that the optimal path is 12 cars and gets rid of 132 points. Other hands I randomly generated resulted in graphs an order of magnitude larger.

I found this Veiled Prophet poster in a St. Louis antique shop a while back and had it restored by Richard Baker.

We're testing Square for Android on these devices.