by Liam Parker (Author)
Each puzzle consists of a 12x12 grid containing given clues in various places. The object is to fill all empty squares so that the numbers 1 to 12 appear exactly once in each row, column, diagonal and 3x4 box.
Number of Pages: 118
Dimensions: 0.25 x 9 x 6 IN
Publication Date: August 26, 2019