Sudoku 101

It's weird, I know, but solving sudoku puzzles has been my lullaby for a few weeks' nights now.

Presenting to you Sudoku 101: sudoku variants:

1. Classic Sudoku

~ A classic sudoku puzzle consists of a 9x9 grid- nine cells per row and nine cells  per column. the 9x9 grid is also further divided into 3x3 subgrids. You start off with some numbers already plotted in for you. Your goal is to fill in the missing numbers to complete the puzzle so that each row, each column, and each subgrid contains the numbers 1 to 9 only once.


2. Odd and Even Sudoku

~Solve odd and even Sudoku puzzles the same way you would solve the Classic puzzles. This means that numbers 1 to 9 should appear in each row, column, and 3x3 grid only once. But in odd and even puzzles, the shaded boxes must only contain even numbers for even sudoku or odd numbers for odd sudoku puzzles.


3. Diagonal Sudoku

~To solve a diaggonal sudoku puzzle, you must follow the rules of Classic Sudoku plus you must make sure that each diagonal contains the numbers 1 to 9 only once.


4. Diagonal Odd and Even Sudoku


~diagonal odd and even sudoku are combinations of two variants: diagonal sudoku and odd or even sudoku. Solve as you would a Classic Sudoku, except each diagonal must contain the numbers 1 to 9 only once, as well, and the shaded boxes should hold only numbers for diagonal odd or even numbers depending if it's an odd or an even sudoku puzzle.


5. Irregular or Jigsaw Sudoku

~ Solve as you would a classic sudoku except this time, the 3x3 grids have irregular shapes. this means that you have to make sure that the numbers 1 to 9 appears in each row, column, and irregularly shaped grid only once. 


6. Mega Sudoku

~ You have here a 12x12 grid or a 16x16 grid puzzle. Fill in the empty squares so that each row, column, and subgrid contains the numbers 1to12 or 1to16 only once. 


7. Multi Sudoku

~This consists of multiple overlapping 9x9 grids. You have to fill in each 9x9 grid so that each row, column, and subgrid contains the numbers 1x9 only once. Grids with overlapping areas will also follow the rules of each individual 9x9 puzzle.


8. Sum or Killer Sudoku

~This one I haven't tried yet... I still can't figure out how to do this one:))

~This is a merge of Sudoku and Kakuro. You must hold to the rules of classic sudoku plus make sure that the sum of the numbers in each area is equal to the clue number given and that the numbers in each areas are unique.

* All the descriptions for the Sudoku Variants came from the Sudoku book, "Sudoku Samurai Sensei Vol1 Issue1" :)