Pixtangle: Shikaku Rectangles

Pixtangle is a relaxing shikaku puzzle game: slice the grid into rectangles by the number clues, fill the whole board, and watch it bloom into a pixel art. A calm, satisfying logic puzzle for fans of number and grid puzzles — simple rules, clean deduction and that little click when the last rectangle falls into place.

HOW TO PLAY SHIKAKU

Each rectangle must contain exactly one number, and that number is the rectangle's area in cells. Any correct split of the board wins. A quick interactive tutorial walks you through your first board move by move — and the pear you color in along the way becomes the first art in your collection.

• Drag your finger to draw a rectangle around a number

• Every rectangle holds exactly one number clue

• The number equals how many cells the rectangle covers

• Fill the entire board to solve the puzzle

SIX DIFFICULTIES THAT GROW WITH YOU

Five minutes on the bus or a whole quiet evening — there is always a new board waiting. Classic levels are generated endlessly, so you never run out of puzzles.

• Easy starts on tiny 4×5 grids to learn the feel of the game

• Medium, Hard and Expert grow the board and the rectangles

• Extreme and Insane go up to 16×23 cells with rectangles of up to 26 cells

• From Medium on, some clues are "?" — deduce the size of that rectangle yourself

• The next difficulty unlocks as you win, and large boards come with zoom and pan

• Leave a level halfway and continue it later right where you stopped

A NEW DAILY CHALLENGE EVERY DAY

• One board a day, the same for every player, on a unique shape — from hearts and stars to letters of the alphabet

• The shape never repeats two days in a row, and the difficulty varies from day to day

• Keep your daily streak for bigger coin rewards

• Missed a day? Open the calendar and play any past board, or look back at your own solutions

COLLECT PIXEL ART

Coins from your wins unlock new pixel art boards. Solve one, and the finished board colors in as the picture — every art in your gallery is one you solved yourself.

• 270+ pixel arts in 10 categories: Animals, Fantasy, Food, Nature, Objects, Retro, Space, Sports, Symbols and Transport

• Rarities from common to legendary — complete a whole category to unlock its legendary art

• Master's Path: 19 extra arts earned by reaching win milestones in classic

• A deal of the day: every morning a different art costs fewer coins

• A daily login reward with coins and hints that grows through the week

• Hints when you get stuck — paid with coins or with a short optional video

RELAXING BY DESIGN

Pixtangle is made for a quiet moment: no countdowns, no energy to wait for, no pressure — just you, the grid and the numbers.

• Completely free, supported by occasional ads, with no in-app purchases

• Works fully offline — no account, no sign-up

• Light and dark themes, gentle sounds and haptics you can switch off any time

• Personal statistics: best times, accuracy, streak records and a daily activity map

• Share any finished pixel art as an image in one tap

• Optional daily reminders so you never miss the daily challenge

• Made for phones and tablets, available in 17 languages

Shikaku, also known as Rectangles or Shikaku ni Kire, is a classic Japanese logic puzzle in the same family as nonograms, sudoku and Kakuro. If you enjoy number logic puzzles and brain teasers, Pixtangle will feel right at home — slice the grid, solve the puzzle, reveal the art.