Puzzle techniques for different kinds of focus.

The best technique for today depends on the kind of attention you want to use: spatial, visual, methodical, or quick.

Start with these guides

Eight daily puzzle techniques, one quilt

Eight techniques are live on the App Store, each with its own visual language and kind of deduction.

Explore the techniques →

Best puzzle games for iPhone: how to choose one you’ll actually keep

A clear checklist for choosing an iPhone puzzle game by mechanic, session length, privacy, and device fit.

Choose an iPhone puzzle →

What makes a puzzle game go viral? A research-based design guide

A research-led framework for building shareable puzzle experiences without fake popularity or compulsive pressure.

Read the viral design guide →

How to share a puzzle result without spoiling the answer

A practical UX pattern for result cards, friend challenges, and social sharing that keeps the puzzle intact.

Make sharing spoiler-safe →

How to play the rectangle logic behind Coverlet

Understand the one rule, then use simple deductions to make your first patch.

Read the guide →

Shikaku vs Sudoku vs Nonogram: how the puzzles differ

Compare the clue systems and deduction styles of Shikaku, Sudoku, and Nonograms.

Compare the puzzles →

Logic puzzle solving tips: start with certainty

Find forced moves, count consequences, and finish without guessing.

Learn the method →

How to solve Shikaku puzzles: a beginner's strategy guide

A step-by-step strategy for solving Shikaku-style rectangle puzzles without guessing.

Solve the puzzle →

Return to the Coverlet Journal for the full collection of solving guides, travel notes, and design stories.