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This is an example of a completed SudokuXV grid. A SudokuXV puzzle uses the same base rules of Sudoku,
but in addition some cells will have a 'V' or a 'X' between them. In the case of a 'V', these two
cells will add to 5, and in the case of a 'X', these two cells will add to 10.

If you look at this puzzle, you can see that these rules are satisfied.

This is an example SudokuXV starting grid, and I have highlighted some cells that we can either fill in,
or insert some pencil marks. In the topmost cell, it is linked to a '4' by a 'X' symbol. The 'X' tells
us that these two cells must add to 10, so the highlighted cell must be a '6'.

Slightly lower we have another highlighted cell linked by a 'V' to a 1. These two cells must add to 5,
so the highlighted cell must be a 4.

At the bottom of the puzzle we have two highlighted cells linked with a 'V'. We know these two cells
must add to 5, and there's only two ways we can do that, either 1+4=5, or 2+3=5. Because of the 1s and
4s already in these two rows we know that we can't have the combination of 1 and 4 in these cells. We
can then fill in the pencil marks of 2 and 3 for these two cells.

This is another starting SudokuXV grid, can you fill in the highlighted cells? The set of 3 cells in the
bottom right can be filled (i.e. not with pencil marks), hint: Consider the 'V' clue first, and then
consider what possibilities that would leave for the 'X' clue.

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

Picross

Solitare