Repeat-Letter Sudoku

by Walter Mackey

Double letters mean double fun for puzzle mavens, who will sharpen their pencils and their wits to solve these clever sudoku variations. Conceived by the man who has been creating sudoku longer than anyone alive, they dispense with one of the standard rules of the game: no repeats. Instead, these brainteasers include at least one letter that occurs two times in every row, column, and diagonal. That makes it harder to eliminate possibilities and complete the grid. And there’s more: in every spread, the phrases in the two sudoku are related. So, one might have “breakfast,” while the other has “cold pizza”; “dentistry” and “candy bars”; and “eyestrain” and “nude beach.”

95 pages, Paperback

First published November 1, 2007