"GAMES Sudoku." . . "Mathematical recreations." . . "Mathematical recreations" . . . . . "Martin Gardner in the Twenty-First Century"@en . "Martin Gardner in the Twenty-First Century" . "Martin Gardner in the twenty-first century"@en . "Martin Gardner in the twenty-first century" . . . . . . . . . . . . . . "Electronic books"@en . . . . "Livres électroniques" . . "\"This book collects articles Gardner wrote for the MAA in the twenty-first century, together with other articles the MAA published from 1999 to 2012 that spring from and comment on his work.\"--P. [4] of cover." . . . . . "\"This book collects articles Gardner wrote for the MAA in the twenty-first century, together with other articles the MAA published from 1999-2012 that spring from and comment on his work\"--Cover."@en . . . "Mathematical Association of America" . . "MATHEMATICS General." . . "MATHEMATICS Recreations & Games." . .