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A Consecutive Sudoku is based on the same rules as a standard Sudoku grid. However, you will also find
a thick grey line separating some cells, the two cells either side of this separating line are
consecutive, i.e. there is only a difference of 1 in their values.

This is an example of a completed Consecutive Sudoku puzzle. You will notice that every thick grey line
has two numbers either side that are only different by 1.

This is a Consecutive Sudoku starting grid, and we can fill in the hilighted cells. The easiest cells to
start with in a Consecutive Sudoku are those that are 'consecutive' with a 1 or a 9 - there is only
one possible solution in this situation, either a 2 or a 8 respectively. We can use this to fill in
the top and bottom highlighted cells.

The highlighted cell to fill in on the center-right is a little trickier to fill in. We can use the
normal rules of Sudoku to eliminate 1, 2, 3, 4, 6, 7, and 8. This leaves us with just 5 and 9. We
also know that this number be must be consecutive with 6, i.e. 5 or 7. This allows us to fill this
cell in with a 5.

This is another Consecutive Sudoku starting grid, can you find the value of the hilighted cell by
combining the standard Sudoku rules with the rules for Consecutive Sudoku?

Nonograms

Wordsearch

Nurikabe

Jigsaw Sudoku

Samurai Sudoku

Sudoku

Mathdoku

16×16 Giant Sudoku

Hitori

X-Sudoku

Kids Sudoku

12×12 Giant Sudoku

Hyper Sudoku

Futoshiki

Towers

Killer Sudoku

Greater Than Sudoku

Maze

Arrow Sudoku

Center-Dot Sudoku

Consecutive Sudoku

Odd-Even Sudoku

SudokuXV

Network

Minesweeper

Hashi

SlitherLink

TicTacToe

CellBlocks

Suguru

Kakuro

Train Tracks

Battleships

Masyu

Light Up

Shakashaka

Fillomino

Numberlink

Suko

SetSquare

Dominosa

Spiral Galaxy

Hidoku

Star Battle

Kakurasu

Ballsort

Picross

Solitare

Pairs

Four in a row