Turtle Thumb Tussle

Rather than go to war, the indigenous tribes of Chelonia have invented a novel way of settling disputes. As my learned reader will no doubt be aware, Chelonia is the last remaining habitat of Proganochelys quenstedti, the roof turtle; now hunted to extinction elsewhere because of its colourful shell. The natives play a game on the backs of the turtles, which is described below.…