the rules of 8x8 Sudoku:
The puzzle is played on an 8x8 grid, instead of a 9x9 grid.
There are 8 numbers to choose from (1, 2, 3, 4, 5, 6, 7, and 8).
Each row, column, and 4x4 block must contain each of the numbers 1, 2, 3, 4, 5, 6, 7, and 8 exactly once.
As you can see, the puzzle has 8 rows, 8 columns, and 4x4 blocks. The numbers 1, 2, 3, 4, 5, 6, 7, and 8 must appear exactly once in each row, column, and 4x4 block.
8x8 Sudoku is a more challenging puzzle than regular Sudoku, but it can still be enjoyable. If you are a beginner to Sudoku, I recommend starting with regular Sudoku puzzles. Once you have mastered regular Sudoku, you can then try 8x8 Sudoku puzzles.
Here are some tips for solving 8x8 Sudoku puzzles:
Start by looking for clues in the existing numbers. For example, if a number appears only once in a row, then it must be the missing number in that row.
Look for patterns in the numbers. For example, if a number appears in two of the three rows in a 4x4 block, then it must also appear in the third row.
Use elimination to rule out impossible numbers. For example, if a number appears in a row and a column, then it cannot also appear in the corresponding 4x4 block.
Be patient and persistent. 8x8 Sudoku puzzles can be challenging, but they are also very satisfying to solve.