Zero Grid vs Akari

A simple math puzzle that anyone can pick up and play. Easy to start, hard to put down. Use the number in the center to calculate each tile and turn all numbers into “0”. Start with simple puzzles using subtraction. As you progress, addition, multiplication, and division are introduced, making the puzzles deeper and more strategic. Drag across tiles to connect and select them in one stroke. Choosing the right steps and operations is the key to solving each puzzle. Clear stages from Level 1 to 200 in order. After clearing Level 40, the “Puzzle Generator” is unlocked, allowing you to create and play unlimited custom puzzles. Features • Simple and intuitive controls • Operations increase with difficulty (− → + → × → ÷) • Satisfying one-stroke drag gameplay • Strategic, brain-teasing puzzles • 200 challenging stages • Unlock the puzzle generator • Perfect for short play sessions Play now and experience the fun of puzzles!

Light the way through a moonlit village, one lantern at a time. Akari is a calm logic puzzle about light. Place lanterns on the board until every open square glows, without letting any two lanterns shine on each other. The rules take a minute to learn; the puzzles will keep you thinking for much longer. HOW TO PLAY • Tap a square to place a lantern. Its light travels along the row and column until it reaches a wall. • Light up every open square on the board. • Lanterns must never shine on each other. • A number on a wall shows exactly how many lanterns touch it. • Long-press a square to mark an X where a lantern can't go. WHAT'S INSIDE • 120 puzzles in a campaign that grows from small 4×4 boards to 10×10 challenges • A new Daily Puzzle every day, from a gentle Monday to an expert Sunday • Every puzzle has exactly one solution and can be solved by logic alone, no guessing • Hints that explain the next step on your own board, without making the move for you • Place Light adds one correct lantern when you just want to keep going • Hint and Place Light are always free: no limits, no costs, no penalties • X marks to keep track of your reasoning • Optional timer, plus music, sound, vibration and reduce-motion settings • Plays offline. No ads. No in-app purchases. A QUIET PLACE TO THINK Golden lanterns, moonlight on the water and drifting sakura petals set the mood. Finish a board and watch the village light up. Akari is also known as “Light Up”, a classic grid logic puzzle. If you enjoy Sudoku, nonograms and other pen-and-paper puzzles, you'll feel right at home.