George Henry Mackenzie - Third US Chess Champion, 1869 Shopworn • “Spassky Powerbooks”: Spassky’s opening

• “Spassky Powerbooks”: Spassky’s opening repertoire as a variation tree

a3 Bxc3+ 6

Objectively speaking

after the standard 1

George Henry Mackenzie - Third US Chess Champion, 1869 Shopworn • “Spassky Powerbooks”: Spassky’s openingThe definitive biography of America's greatest chess player, covering the year 1869. The author has compiled all the available American (and other) chess sources for this year (The Turf, Field, and Farm, Sunday Mercury, Round Table, The Spirit of the Times, New York Albion, New York Clipper, etc., all the New York dailies, British chess columns, and European chess magazines, among others) and has collected a total of 73 games played by Mackenzie in