The series
The Sudoku grid is a 9km x 9km square centred on Northwich. Each
1km x 1km Ordnance Survey grid square in this area represents a
cell in the Sudoku puzzle. The SW corner of the grid is at
N053°12.998', W002°35.127' (SJ6100069000); the NE corner of the
grid is at N053°17.885', W002°27.096' (SJ7000078000).

Image produced from the Ordnance Survey Get-a-map
service.Image reproduced with kind permission of Ordnance Survey and Ordnance Survey of Northern
Ireland.
Hidden in some of those squares are caches, such as this one,
that contain the number for that particular cell. The cells that
contain clues are indicated by question marks. Each cell is
referred to using a 4 digit OS grid reference for it's South West
corner.
The cache
This is cell SJ6774. To get to the cache you need to cross the
canal using the bridge at the back of Northwich Victoria's Theatre
of Dreams. It is best avoided if Witton Albion or Northwich
Victoria have a home game since there will be many muggles and
little parking
The cache is a 0.4l screw top beaker inside a camouflage bag.
Inside the lid you will find the following information:
- The OS grid square reference (for example: SJ6477)
- The number that you need for the Sudoku puzzle (for
example:9)
- The cell reference (for example d1)
The cache contains a customised “Northwich Sudoku”
first to find badge, a log book, a pencil, a sharpener and various
swaps.
When you have found enough clues, you will be able to solve the
Sudoku puzzle and find the
Puzzle Cache.
Good hunting