The Chessmen of Mars' is an Edgar Rice Burroughs science fantasy novel, the fifth of his famous 'Barsoom' series. Burroughs began writing it in January, 1921, and the finished story was first published in 'Argosy All-Story Weekly' as a six-part serial in the issues for February 18 and 25 and March 4, 11, 18 and 25, 1922. It was later published as a complete novel by A.C. McClurg in November 1922.