Did you solve it? Clueless Sudoku, a genius new puzzle | Mathematics
Today I have set you three of these Sudoku. They follow the standard rule that all numbers are formed from 1 to 9 in each row, column, and 3×3 box, and there are additional rules. Cells containing either columns, columns, or 3×3 boxes (left to right, top to bottom to bottom read) are gold. In […]
Can you solve it? Clueless sudoku, a genius new puzzle | Mathematics
Today I present a wonderful new type of Sudoku, invented by reader Alf Smith. Like all Sudokus, numbers 1-9 must appear in all rows, columns and boxes. However, the difference between this new variant is that there are no clues in the starting grid. Instead, some cells are golden. Additional rules include numbers for gold […]