Nonograms: 100 More Puzzles

A hundred more pictures, hidden in numbers.

A nonogram is a picture hidden in a grid. The clues down the side and across the top tell you how many squares to fill in and in what order. Work one line at a time, cross out what cannot be, and the picture comes up out of the grid. No guessing, ever.

One hundred puzzles you have not seen before

Every image in this book is new. Nothing here repeats Book One or Book Two. A hundred fresh grids, from ten by ten up to eighteen by eighteen, and this volume carries the longest tail of the three: seven of them are graded SEVERE.

Every puzzle in this book was checked by computer

Three things are true of every grid here. It has exactly one solution. It falls to line-by-line reasoning alone, so you will never reach a point where the only way forward is to try something and see. And its difficulty is measured, not estimated: a separate program counts the solving passes each puzzle needs, and the hundred are printed in that order, easiest first.

Grid lines you can actually see

If you have ever bought a puzzle book and found the grid printed so faintly you had to squint to count the squares, that is the problem this one was built to solve. Every rule is drawn at twice the minimum weight Amazon publishes for printed tables, and the heavy fives are drawn at three times.

What is inside

• 100 puzzles, one per page, never squeezed two to a sheet.
• Large print grids, printed as big as the page allows.
• A worked example at the front, solved step by step, so you know exactly how the clues behave before you start.
• Every solution at the back, full size, each one named.
• A difficulty on every puzzle, measured by the solver rather than guessed at.

8.5 by 11 inches, 124 pages. Book 3 of Picture Logic. Each volume stands alone.