Sudoku Challenge
Sudoku Challenge

Description
In Sudoku Challenge, you fill in the puzzles with the usual rules, but when the grid is complete, you then use the clue numbers to work out how to calculate the challenge number.
Unique, fun, and interactive this collection of brain-teasing puzzles, can be played offline and will keep you entertained for hours and hours.
Details
9780711290686
Quarto Publishing PLC
Height: 129 mm
Width: 198 mm