Yorkshire well-known author was children's writer Arthur Ransome, who penned the "Swallows and Amazons" series. James Herriot, the best selling author of over 60 million copies of books about his experiences of some 50 years as a veterinarian in Thirsk, North Yorkshire, the town which he refers to as Darrowby in his books (although born in Sunderland), has been admired for his easy reading style and interesting characters. Poets include Ted Hughes, W. H. Auden, William Empson, Simon Armitage and Andrew Marvell. Three well known sculptors emerged in the 20th century; contemporaries Henry Moore and Barbara Hepworth, and Leeds-raised eco artist
Game of the Amazons in 1994, and an updated version with graphics in Visual Basic in 1995. There are Amazons tournaments at the Computer Olympiad, a series of computer-versus-computer competitions. Usually, in the endgame, the board is partitioned into separate "royal chambers", with queens inside each chamber. We define simple Amazons endgames to be endgames where each chamber has at most one queen. Determining who wins in a simple Amazons endgame is NP-hard. This is proved by reducing it to finding the Hamiltonian path of a cubic subgraph of the square grid graph. Generalized Amazons (that is, determining the winner of a game of