Sudoku Collection: 200 Medium Sudoku XV Puzzles 9x9 - Paperback
Sudoku Collection: 200 Medium Sudoku XV Puzzles 9x9 - Paperback
$17.78
/
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
by Alena Gurin (Author)
Sudoku XV is the variation of the original sudoku. All adjacent cells with two digits summing to 10 are marked by X, while those summing to 5 are marked by V. The cells edges which do not contain an X or a V cannot have digits summing to 5 or 10.