Zero Grid vs NekoZabuton

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!

Tuck a sleepy cat in beside every cushion. NekoZabuton is a cozy nap-time logic puzzle that never asks you to guess. Every single puzzle can be solved with pure deduction — no luck, no leaps of intuition, just calm, satisfying logic. HOW TO PLAY - Place one cat next to each cushion (directly above, below, left, or right) - Cats need their space: no two cats can touch, not even diagonally - The numbers along the edges tell you how many cats sleep in each row and column WHY YOU'LL LOVE IT - 300 handcrafted puzzles, every one verified to be solvable without guessing - No penalties and no pressure. Undo, redo, and pencil marks let you think at your own pace - Hints that actually teach: instead of just revealing an answer, each hint explains why a cat belongs there - A new Daily Puzzle every day — build a streak one quiet morning at a time - Works completely offline, so you can play on flights, trains, and anywhere else - Supports Dark Mode, VoiceOver, and larger text sizes A QUIET GAME, ON PURPOSE No flashing lights, no loud fanfare, no lives to run out of. Just you, a small grid, and a few cats who really need their nap. A round can be as short as a minute — perfect for a little break — or stretch out like a lazy Sunday afternoon. ABOUT ADS NekoZabuton is free to play and supported by ads. Ads never appear on the puzzle screen while you are solving, and how often they appear is capped. Every feature is available to everyone, whether or not you ever watch an ad. If you enjoy tents-and-trees style grid puzzles, nonograms, or sudoku, this kind of pure logic will feel right at home — with more cats. Curl up, get comfortable, and help everyone fall asleep.