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 SJ6870. The parking area on Whatcroft Lane is on
the wrong side of the canal. To cross the canal you need to take
the footpath from N053°13.558, W002°28.664 and follow a bearing of
300° to the lodge next to the canal bridge
The cache is located in a hidden dell North of the towpath where
the stream goes under the canal. There is a path that is hard to
find in the summer. GPSr accuracy is poor but the hint should make
the location easy to find.
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