References - Books

British Chess Association (1869). The Transactions of the British Chess Association for the Years. [online] Google Books. Longmans. Available at: https://books.google.co.uk/books/about/The_Transactions_of_the_British_Chess_As.html?id=GKxAAAAAcAAJ&redir_esc=y.

Pritchard, D.B. (2007). The Classified Encyclopedia of Chess Variants. 2nd ed. [online] Great Britain: Biddles Ltd. Available at: https://www.jsbeasley.co.uk/encyc/encyc.pdf.

Staunton, H. (1847). The chess-player’s Handbook. [online] Google Books, Bohn, p.46. Available at: https://books.google.co.uk/books?id=q7BAAAAAcAAJ&pg=PA46&redir_esc=y#v=onepage&q&f=false.

The British Chess Magazine (1891). vol.11. [online] Google Books, British Chess Magazine. Available at: https://www.google.co.uk/books/edition/The_British_Chess_Magazine/Y4iFQCUTaREC?hl=en&gbpv=0.The British Chess Magazine (1893). vol.13. [online] Google Books. British Chess Magazine. Available at: https://www.google.co.uk/books/edition/The_British_Chess_Magazine/Z2GfJprMQV8C?hl=en&sa=X&ved=2ahUKEwizjpH8tPL9AhXMO-wKHbzMDqwQiqUDegQIDRAK.

The British Chess Magazine (1894). vol. 14. [online] Google Books, British Chess Magazine. Available at: https://www.google.co.uk/books/edition/The_British_Chess_Magazine/2pQpfpCMEEIC?hl=en&sa=X&ved=2ahUKEwjPrqbMufL9AhWIEMAKHfHkCBcQiqUDegQIBRAO.

The British Chess Magazine (1895). vol. 15. [online] Google Books, British Chess Magazine. Available at: https://www.google.co.uk/books/edition/The_British_Chess_Magazine/bnxqUNq-CfgC?hl=en&sa=X&ved=2ahUKEwj728Oxu_L9AhVQSsAKHaa0AdgQiqUDegQIBBAS.

The British Chess Magazine (1892). vol.12. [online] Google Books, British Chess Magazine. Available at: https://www.google.co.uk/books/edition/The_British_Chess_Magazine/n3NGps0ptD4C?hl=en&sa=X&ved=2ahUKEwii2v7MsfL9AhWPiFwKHQGCC2UQiqUDegQIDhAG.

Verney, G.H. (1881). Four-handed Chess. [online] Google Books. G. Routledge and sons. Available at: https://www.google.co.uk/books/edition/Four_handed_Chess/ZEMCAAAAQAAJ?hl=en&gbpv=0.