ISBN-13: 9781544167794 / Angielski / Miękka / 2017 / 272 str.
ISBN-13: 9781544167794 / Angielski / Miękka / 2017 / 272 str.
Sujikai (literally -diagonal-) is a variation of Sudoku. The puzzle consists of a triangular grid of cells containing digits from 1 to 9. The objective is to fill a grid with digits so that each cell contains a digit and no digit is repeated in any column, row and diagonal in any direction. Also, no digit occurs twice in any of the three larger 3 x 3 square regions and any of the three larger triangular regions enclosed by thick borders.