Don't panic. There are several bombs hidden throughout the grid, but if you just follow these simple not at all convoluted directions you can disarm the bombs and save everyone. The bombs take the form of three regular sudoku digits which you must determine. All instances of each of those digits in the grid are bombs. Each row, column and region must contain the digits 1 to 9 once each. Therre are nine regions to be discovered, each containing nine orthogonally connected cells. The arrows point to bombs within the same region. The digit on the arrow tells you how many cells to travel to reach that bomb. For example, if r6c2 is 3, that would tell you that r3c2 is a bomb digit in the same region as r6c2. Not all arrows are necessarily given. The black dots in the grid separate digits with a ratio of 1:2 which are in different regions. All such black dots are given. [Digits with a ratio of 1:2 that are in the same region are not marked.]