Sunday Telegraph Second Book of Griddlers

Griddlers are back! Griddlers are tests of skill and logic. The aim is to discover the picture hidden in the grid by filing in some squares as solid and the remainder with dots using your powers of deduction.

There are numbers attached to each grid and they tell you how many squares need to be filled in - all you have to do is to deduce which ones!

When completed the solids will form a picture. If you are already a Griddler enthusiast then you'll know the hours of diversion they can provide.

If you're discovering them for the first time, then be warned - you could get hooked!

If inspiration fails, instructions and solutions are included at the back.