About Rovio Entertainment Corp.

Who we are

Rovio Entertainment Corp. is a publisher focused on making logic puzzles easier to understand and easier to get started with. We cover picture logic puzzles — nonograms, also called Japanese crosswords or Picross — how their numbered row and column clues work, and the online platforms that collect them in one place. Our aim is to translate how these puzzles and platforms actually work into plain, practical overviews that readers can use.

Our mission

Our mission is simple: help readers spend less time wondering where to begin and more time solving. Nonograms are solved one logical step at a time until a hidden picture gradually appears, but descriptions of them are often vague. We explain what a nonogram is, what a puzzle collection is designed to offer — grid sizes, difficulty levels, classic and color formats, online and printable options — and where the differences between platforms lie, without jargon or sales pressure, so readers can decide what fits their own routine.

Our values

We aim for honesty about limitations. When we describe a puzzle platform, we describe what it is actually designed to do, including the conditions attached to it. Features such as optional hints, printable versions, or progress saving for registered users vary from one site to another, and how enjoyable a puzzle feels depends a great deal on individual preference and experience level. We do not rely on invented statistics, exaggerated claims, or artificial urgency, and we always point back to official sources for the details that matter most.

Why choose us

We focus specifically on the practical side of the hobby: choosing a first small grid, moving from beginner puzzles to larger challenges, understanding what changes when a nonogram uses color instead of a single fill, and deciding whether you would rather solve on screen or on paper. Our content is written to be read once and understood, not skimmed and forgotten. When we mention a puzzle format or a platform feature, we explain the reasoning behind it rather than simply asserting a claim, so you can judge for yourself whether it fits your situation.

Last updated: July 20, 2026