Cogs vs Sudoku Zero

Cogs is a multi-award-winning puzzle game where players build increasingly complex machines using sliding tiles 3D. Originally launched in 2009, we completely remastered Cogs from the ground up in 2025 to look beautiful on modern phones and tablets. "One of the highest quality puzzle games we've seen." – PocketGamer "The visual design and imagination of the game are stunning, with great attention to detail, and the sound effects are downright enticing." – Adrenaline Vault "A masterpiece visually, as well with the actual gameplay." – AppAdvice INVENTOR MODE Starting with simple puzzles, players are introduced to the widgets that are used to build machines — gears, pipes, balloons, chimes, hammers, wheels, props, and more. TIME CHALLENGE MODE If you finish a puzzle in Inventor Mode, it will be unlocked here. This time, it will take fewer moves to reach a solution, but you only have 30 seconds to find it. MOVE CHALLENGE MODE Take your time and plan ahead. Every tap counts when you only get ten moves to find a solution.

Swipe. Merge. Clear the board. Sudoku Zero is a number merge puzzle and brain teaser where every move matters. Swipe a tile onto its neighbor to merge them, then clear every number from the grid without getting stuck. A relaxing math and logic game that is easy to learn and hard to master. HOW TO PLAY 1. Swipe a block left, right, up or down onto a neighboring block to merge them. 2. Same numbers cancel out. Merge two blocks with the same number and both disappear. 3. Different numbers add up. Merge two blocks with different numbers and the swiped block disappears. The block you landed on becomes the sum of the two. 4. Mind the gaps. Blocks can only merge when they are next to each other. You can't merge across an empty cell, so every block you clear changes which moves are still possible. GOAL: Clear all the numbers from the board. FEATURES • Clean, simple number puzzle gameplay • Merge matching numbers to clear them • Add different numbers to create new values • Empty gaps create strategic challenges • Easy levels for beginners, tough levels for puzzle experts • No timers, play at your own pace • Short levels, perfect for quick play sessions • Smooth, relaxing gameplay you can enjoy offline WHY YOU'LL LOVE IT • Easy to learn, hard to master • Trains logic, math and planning skills • No luck involved, only smart decisions • Rewards careful thinking, not fast tapping PERFECT FOR FANS OF • Number puzzle games • Merge and match games • Brain teasers and mind games • Logic and strategy puzzles One wrong move can leave you stuck. Can you clear the grid? Download Sudoku Zero now and challenge your mind.