Do you know your Trumpington Variations?
What about Tudor Court Rules?
And did you ever really understand the Southwark Method*?

That's right, it's time for...
Mornington Crescent
The game whose rules are so complex that not even the late, great Humphrey Lyttelton (1921-2008) could satisfactorily explain them!

ZX Spectrum Amended Rules by Edward Cree.

Submitted for the CSSCGC2010.

To make the game slightly less difficult, included is a program for the host PC which computes the set of legal moves in a given condition of play.

Other notes: the font (a double-height variable-width version of Johnston Railway Sans) took several hours to hand-rasterise, consuming much more effort than the writing of the game itself.

* In case you're wondering, the Southwark Method consists of "an open variation, but remember if pairing occurs during positional play after a neutral move when all the diagonals are quartered then the overboard player must sacrifice Fairlop in order to progress or risk passing at a secondary tangent."