This blog deals with grid-based puzzles and the various types of logic and ideas used to solve them. It also contains notices, information and results about various puzzle and sudoku championships across the globe.
Place numbers in the grid such that each row, column and thick-outlined region contain the numbers 1 to 7. Same numbers cannot touch each other even diagonally.
Complete the grid such that each row, column and 3x3 box contain numbers 1 to 9 as shown in Roman numbers. Some lines are already given, which cannot be removed.
Draw lines in the grid such that each row, column and 3x3 box contain numbers 1 to 9 as shown in digital format. Some lines are already given, which cannot be removed.