A simple, addictive
game of logic that will leave you begging for mercy!
How to Play
Solve the mystery
of the number grid with reasoning and patience (no math required). There
is only one rule: Fill in the grid so that every row, column and 3×3 box
contains all digits 1-9 only once.
Your initial game board will consist of several numbers that are already
placed. Those numbers cannot be changed. There is exactly one correct
solution and it is always solvable using the logic rules discussed below.
Following these logic rules you should never need to "guess"
or look ahead to solve the puzzle. However, solving the puzzle can take
quite a long time.