The Nonogram Guide

How to solve nonograms, why some of them force you to guess, and where all their names come from. Every example puzzle here passed the same solver that checks Gridora's levels.

• How to Solve Nonograms: Step-by-Step TechniquesOverlap, marking, and going back and forth between rows and columns: the core techniques, with playable examples.September 15, 2026
• Why Some Nonograms Need GuessingThe difference between multiple solutions and a single solution logic can't reach, shown with drafts we rejected.September 15, 2026
• Nonogram, Picross, Hanjie, Griddlers: One Puzzle, Many NamesWhy one puzzle has so many names: its 1987 origins, where "nonogram" comes from, and Picross.September 15, 2026
• Color Nonogram Rules and Solving TipsRuns of the same color need a gap, different colors may touch: the rules and techniques of color nonograms.September 15, 2026