Sudoku

A sudoku was a number-based puzzle which was solved with pen and paper. Sudokus of various difficulties were printed in the local newspaper of Winchelham. (PROSE: I Am a Dalek ^[+]Loading...["I Am a Dalek (novel)"])

Within the sphere chamber, Rajesh Singh reported to Yvonne Hartman that he was on "Sudoku book 509". (TV: Army of Ghosts ^[+]Loading...["Army of Ghosts (TV story)"])

At the end of a long day, Colin Colchester-Price relaxed by doing Sudoku. (AUDIO: A Kill to a View ^[+]Loading...["A Kill to a View (audio story)"])