Conceptis Block-a-Pix – Reveal a hidden picture

[Game] Conceptis Block-a-Pix

Conceptis Block-a-Pix  Block-a-Pix are exciting logic puzzles that form whimsical pixel-composed pictures when solved.

Challenging, deductive and artistic, these puzzles offer the ultimate mix of logic, art and fun while providing solvers with many hours of mentally stimulating entertainment.

Each puzzle consists of a grid containing clues in various places. The object is to reveal a hidden picture by dividing the whole area of the grid into rectangular blocks according to the rules.

The game features a unique fingertip cursor which enables playing large puzzle grids with ease and precision: to create a block, press and hold fingertip on a clue, wait until cursor fills the square and start dragging to neighboring squares. To delete a block, double-tap or use the eraser button above the puzzle.

To help see the puzzle progress, graphic previews in the puzzle list show the progress of all puzzles in a volume as they are being solved. A Gallery view option provides these previews in a larger format.

For more fun, Conceptis Block-a-Pix includes a Weekly Bonus section providing an extra free puzzle each week.


46 free Block-a-Pix puzzle samples in color
4 extra-large puzzles bonus for tablet only
Extra bonus puzzle published free each week
Puzzle library continuously updates with new content
Manually created by artists, top quality puzzles
Unique solution for each puzzle
Grid sizes up to 50×75 (100×65 for tablet)
Multiple difficulty levels
Hours of intellectual challenge and fun
Sharpens logic and improves cognitive skills


Exclusive fingertip cursor design for solving large puzzles
Concurrently playing and saving multiple puzzles
Puzzle library sorting and hiding options
Portrait and landscape screen support (tablet only)
Graphic previews showing puzzles progress as they are being solved
Unlimited Undo and Redo
Error checking option when a block is completed
Check puzzle
Track puzzle solving times
Backup & restore puzzle progress to Google Drive


Block-a-Pix have also become popular under other names such as Shikaku, Shikakunikire, Block Pix and Blockbuster Paint doku. Similar to Picross, Nonogram and Griddlers, the puzzles are solved and the pictures revealed using logic alone. All puzzles in this app are produced by Conceptis Ltd. – the leading supplier of logic puzzles to printed and electronic gaming media all over the world. On average, more than 20 million Conceptis puzzles are solved each day in newspapers, magazines, books and online as well as on smartphones and tablets across the world.

Conceptis Block-a-Pix user reviews :

Easy to understand (my grandchildren can do it), functions smoothly, and so satisfying to complete a puzzle, that I want to do another one.

Great pictures. Zoom function is a little wonky but it does work.

Great game! However, the controls are a bit glitchy or they feel too sensitive. It would be nice if the zooming/scrolling could be a lot smoother. Another thing, there’s only 2 puzzle packs that are free (out of 88?). Please give us more free packs.
  • Conceptis Ltd.
  • Please note there is a free puzzle every week as well in the Weekly Bonus section.
I love this game but you only get 2 units free and then it is ridiculously expensive. Some units are £7.49 just for 1 section of 20 puzzles – it’d crazy. Definitely won’t be paying those prices.
  • Conceptis Ltd.
  • There is also a new free puzzle released every Friday, which you can find in the Weekly Bonus section

This is a good game, and the sort of puzzle I enjoy. I would rate 5 stars, except the majority of the puzzles you have to pay for. It’s a shame because I enjoy the game, but it’s kinda dumb that you have to pay for it.

Fun logic puzzles. I wish you could do things at the edge of the screen without it thinking you want to go back to the menu, but that’s probably a phone issue rather than an app problem. Also wish you could have uncolored blocks that aren’t complete, or to connect / merge two blocks. All in all, great game, though!

while it is definitely the best shikaku app out there on android, it seriously needs a proper zoom+pan function that doesn’t require to use two fingers and isn’t awkward or stuttery when you move. otherwise good stuff; would prefer lots of puzzles free by default with an iap to remove ads over lots of puzzles but in the form of indivudal iaps but hey whatever that’s the developers discretion not mine.

I’m a big fan of this type of game. I bought a lot of books in different countries about this game. I can honestly say that I’m an expert. Keep watching for new and perplexing pictures. Thanks…Mike.

Contact developer :


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